./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-10.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_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/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_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/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_5bfb0060-5489-4124-919b-e6e72ffa17e9/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 1d2525c514f5f41938cb8dbff9fda78c478979aa19fdef1a39087aafe1b8a708 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:49:20,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:49:20,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:49:20,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:49:20,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:49:20,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:49:20,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:49:20,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:49:20,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:49:20,175 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:49:20,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:49:20,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:49:20,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:49:20,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:49:20,176 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:49:20,176 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:49:20,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:49:20,176 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:49:20,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:49:20,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:49:20,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:49:20,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:49:20,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:49:20,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:49:20,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:49:20,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:49:20,178 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:49:20,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:49:20,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:49:20,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:20,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:49:20,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:20,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:20,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:49:20,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:49:20,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:49:20,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:49:20,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:49:20,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:49:20,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:49:20,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:49:20,180 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_5bfb0060-5489-4124-919b-e6e72ffa17e9/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 -> 1d2525c514f5f41938cb8dbff9fda78c478979aa19fdef1a39087aafe1b8a708 [2024-11-27 19:49:20,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:49:20,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:49:20,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:49:20,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:49:20,521 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:49:20,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i [2024-11-27 19:49:23,479 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/data/6717de693/4cb59164d0fe4d5ba8ce7e3da43620d7/FLAG2b378fc36 [2024-11-27 19:49:23,825 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:49:23,829 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i [2024-11-27 19:49:23,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/data/6717de693/4cb59164d0fe4d5ba8ce7e3da43620d7/FLAG2b378fc36 [2024-11-27 19:49:23,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/data/6717de693/4cb59164d0fe4d5ba8ce7e3da43620d7 [2024-11-27 19:49:23,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:49:23,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:49:23,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:23,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:49:23,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:49:23,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:23" (1/1) ... [2024-11-27 19:49:23,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0a5592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:23, skipping insertion in model container [2024-11-27 19:49:23,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:23" (1/1) ... [2024-11-27 19:49:23,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:49:24,101 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_5bfb0060-5489-4124-919b-e6e72ffa17e9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i[919,932] [2024-11-27 19:49:24,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:24,259 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:49:24,270 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_5bfb0060-5489-4124-919b-e6e72ffa17e9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i[919,932] [2024-11-27 19:49:24,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:24,373 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:49:24,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24 WrapperNode [2024-11-27 19:49:24,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:24,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:24,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:49:24,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:49:24,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,461 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 317 [2024-11-27 19:49:24,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:24,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:49:24,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:49:24,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:49:24,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,527 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]. [2024-11-27 19:49:24,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:49:24,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:49:24,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:49:24,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:49:24,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (1/1) ... [2024-11-27 19:49:24,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:24,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:24,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:24,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:49:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:49:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:49:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:49:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:49:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:49:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:49:24,760 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:49:24,762 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:49:25,575 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-27 19:49:25,575 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:49:25,591 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:49:25,592 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:49:25,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:25 BoogieIcfgContainer [2024-11-27 19:49:25,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:49:25,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:49:25,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:49:25,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:49:25,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:49:23" (1/3) ... [2024-11-27 19:49:25,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38495549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:49:25, skipping insertion in model container [2024-11-27 19:49:25,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:24" (2/3) ... [2024-11-27 19:49:25,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38495549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:49:25, skipping insertion in model container [2024-11-27 19:49:25,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:25" (3/3) ... [2024-11-27 19:49:25,606 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i [2024-11-27 19:49:25,625 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:49:25,628 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-10.i that has 2 procedures, 137 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:49:25,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:49:25,725 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;@56a3ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:49:25,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:49:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 92 states have (on average 1.434782608695652) internal successors, (132), 93 states have internal predecessors, (132), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 19:49:25,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-27 19:49:25,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:25,758 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:25,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:25,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:25,766 INFO L85 PathProgramCache]: Analyzing trace with hash 591584545, now seen corresponding path program 1 times [2024-11-27 19:49:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:25,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357997817] [2024-11-27 19:49:25,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:26,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2024-11-27 19:49:26,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:26,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357997817] [2024-11-27 19:49:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357997817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:49:26,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361531860] [2024-11-27 19:49:26,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:26,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:49:26,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:26,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:49:26,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:49:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:26,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:49:26,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2024-11-27 19:49:26,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:49:26,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361531860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:26,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:49:26,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:49:26,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473589039] [2024-11-27 19:49:26,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:26,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:49:26,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:26,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:49:26,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:49:26,817 INFO L87 Difference]: Start difference. First operand has 137 states, 92 states have (on average 1.434782608695652) internal successors, (132), 93 states have internal predecessors, (132), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:49:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:26,875 INFO L93 Difference]: Finished difference Result 267 states and 468 transitions. [2024-11-27 19:49:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:49:26,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 261 [2024-11-27 19:49:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:26,887 INFO L225 Difference]: With dead ends: 267 [2024-11-27 19:49:26,887 INFO L226 Difference]: Without dead ends: 133 [2024-11-27 19:49:26,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:49:26,897 INFO L435 NwaCegarLoop]: 209 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, 209 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 [2024-11-27 19:49:26,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:26,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-27 19:49:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-27 19:49:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 89 states have (on average 1.404494382022472) internal successors, (125), 89 states have internal predecessors, (125), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 19:49:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 209 transitions. [2024-11-27 19:49:26,986 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 209 transitions. Word has length 261 [2024-11-27 19:49:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:26,987 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 209 transitions. [2024-11-27 19:49:26,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:49:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 209 transitions. [2024-11-27 19:49:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-27 19:49:26,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:26,997 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:27,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 19:49:27,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bfb0060-5489-4124-919b-e6e72ffa17e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:49:27,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:27,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:27,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2117699433, now seen corresponding path program 1 times [2024-11-27 19:49:27,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:27,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616087824] [2024-11-27 19:49:27,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:27,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:49:28,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616087824] [2024-11-27 19:49:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616087824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:28,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:28,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:49:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578385288] [2024-11-27 19:49:28,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:28,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:49:28,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:28,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:49:28,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:49:28,421 INFO L87 Difference]: Start difference. First operand 133 states and 209 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:49:28,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:28,819 INFO L93 Difference]: Finished difference Result 394 states and 622 transitions. [2024-11-27 19:49:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:49:28,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 261 [2024-11-27 19:49:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:28,825 INFO L225 Difference]: With dead ends: 394 [2024-11-27 19:49:28,825 INFO L226 Difference]: Without dead ends: 264 [2024-11-27 19:49:28,826 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 [2024-11-27 19:49:28,827 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 131 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:28,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 598 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:49:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-27 19:49:28,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 205. [2024-11-27 19:49:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 118 states have (on average 1.305084745762712) internal successors, (154), 118 states have internal predecessors, (154), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-27 19:49:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 322 transitions. [2024-11-27 19:49:28,902 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 322 transitions. Word has length 261 [2024-11-27 19:49:28,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:28,905 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 322 transitions. [2024-11-27 19:49:28,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:49:28,906 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 322 transitions. [2024-11-27 19:49:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:49:28,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:28,915 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:28,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:49:28,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:28,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1662415630, now seen corresponding path program 1 times [2024-11-27 19:49:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:28,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120315129] [2024-11-27 19:49:28,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:28,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:50:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:45,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120315129] [2024-11-27 19:50:45,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120315129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:45,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:45,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 19:50:45,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165352677] [2024-11-27 19:50:45,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:45,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:50:45,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:45,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:50:45,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:50:45,534 INFO L87 Difference]: Start difference. First operand 205 states and 322 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:50:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:50,553 INFO L93 Difference]: Finished difference Result 642 states and 988 transitions. [2024-11-27 19:50:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:50:50,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-27 19:50:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:50,559 INFO L225 Difference]: With dead ends: 642 [2024-11-27 19:50:50,559 INFO L226 Difference]: Without dead ends: 512 [2024-11-27 19:50:50,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-27 19:50:50,561 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 838 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:50,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 1401 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 19:50:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-27 19:50:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 363. [2024-11-27 19:50:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 232 states have (on average 1.3448275862068966) internal successors, (312), 233 states have internal predecessors, (312), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:50:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 564 transitions. [2024-11-27 19:50:50,615 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 564 transitions. Word has length 262 [2024-11-27 19:50:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:50,616 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 564 transitions. [2024-11-27 19:50:50,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:50:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 564 transitions. [2024-11-27 19:50:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:50:50,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:50,621 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:50,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:50,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:50,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1484426226, now seen corresponding path program 1 times [2024-11-27 19:50:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:50,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182992201] [2024-11-27 19:50:50,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:51:01,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:01,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182992201] [2024-11-27 19:51:01,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182992201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:01,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:51:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754730885] [2024-11-27 19:51:01,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:01,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:51:01,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:01,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:51:01,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:51:01,680 INFO L87 Difference]: Start difference. First operand 363 states and 564 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:51:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:04,474 INFO L93 Difference]: Finished difference Result 788 states and 1190 transitions. [2024-11-27 19:51:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:51:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-27 19:51:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:04,483 INFO L225 Difference]: With dead ends: 788 [2024-11-27 19:51:04,483 INFO L226 Difference]: Without dead ends: 658 [2024-11-27 19:51:04,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-27 19:51:04,486 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1042 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:04,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1143 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 19:51:04,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-27 19:51:04,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 385. [2024-11-27 19:51:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 254 states have (on average 1.3700787401574803) internal successors, (348), 254 states have internal predecessors, (348), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:51:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 600 transitions. [2024-11-27 19:51:04,556 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 600 transitions. Word has length 262 [2024-11-27 19:51:04,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:04,557 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 600 transitions. [2024-11-27 19:51:04,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:51:04,558 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 600 transitions. [2024-11-27 19:51:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:51:04,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:04,562 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:04,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:51:04,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:04,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:04,563 INFO L85 PathProgramCache]: Analyzing trace with hash -804367856, now seen corresponding path program 1 times [2024-11-27 19:51:04,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:04,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122539675] [2024-11-27 19:51:04,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:04,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:52:20,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:20,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122539675] [2024-11-27 19:52:20,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122539675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:20,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:20,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 19:52:20,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892713162] [2024-11-27 19:52:20,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:20,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:52:20,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:20,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:52:20,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:52:20,353 INFO L87 Difference]: Start difference. First operand 385 states and 600 transitions. Second operand has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:52:23,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:23,934 INFO L93 Difference]: Finished difference Result 650 states and 997 transitions. [2024-11-27 19:52:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:52:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-27 19:52:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:23,940 INFO L225 Difference]: With dead ends: 650 [2024-11-27 19:52:23,940 INFO L226 Difference]: Without dead ends: 520 [2024-11-27 19:52:23,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2024-11-27 19:52:23,943 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 897 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:23,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1169 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 19:52:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-27 19:52:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 389. [2024-11-27 19:52:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 258 states have (on average 1.372093023255814) internal successors, (354), 258 states have internal predecessors, (354), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:52:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 606 transitions. [2024-11-27 19:52:23,999 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 606 transitions. Word has length 262 [2024-11-27 19:52:24,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:24,000 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 606 transitions. [2024-11-27 19:52:24,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:52:24,001 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 606 transitions. [2024-11-27 19:52:24,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:52:24,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:24,005 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:24,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:52:24,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:24,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1404250192, now seen corresponding path program 1 times [2024-11-27 19:52:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:24,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009430841] [2024-11-27 19:52:24,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:24,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:52:43,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:43,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009430841] [2024-11-27 19:52:43,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009430841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:43,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:43,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 19:52:43,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145406140] [2024-11-27 19:52:43,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:43,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 19:52:43,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:43,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 19:52:43,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:52:43,368 INFO L87 Difference]: Start difference. First operand 389 states and 606 transitions. Second operand has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-27 19:52:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:47,807 INFO L93 Difference]: Finished difference Result 670 states and 1014 transitions. [2024-11-27 19:52:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:52:47,808 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 262 [2024-11-27 19:52:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:47,813 INFO L225 Difference]: With dead ends: 670 [2024-11-27 19:52:47,813 INFO L226 Difference]: Without dead ends: 540 [2024-11-27 19:52:47,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2024-11-27 19:52:47,815 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 1115 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:47,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1512 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 19:52:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-27 19:52:47,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 408. [2024-11-27 19:52:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 273 states have (on average 1.358974358974359) internal successors, (371), 273 states have internal predecessors, (371), 126 states have call successors, (126), 8 states have call predecessors, (126), 8 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:52:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 623 transitions. [2024-11-27 19:52:47,865 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 623 transitions. Word has length 262 [2024-11-27 19:52:47,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:47,866 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 623 transitions. [2024-11-27 19:52:47,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-27 19:52:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 623 transitions. [2024-11-27 19:52:47,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:52:47,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:47,873 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:47,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:52:47,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:47,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:47,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2136704398, now seen corresponding path program 1 times [2024-11-27 19:52:47,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:47,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569254195] [2024-11-27 19:52:47,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:47,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:53:00,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:00,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569254195] [2024-11-27 19:53:00,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569254195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:00,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:00,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:53:00,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862284245] [2024-11-27 19:53:00,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:00,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:53:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:00,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:53:00,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:53:00,204 INFO L87 Difference]: Start difference. First operand 408 states and 623 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:53:05,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:05,551 INFO L93 Difference]: Finished difference Result 889 states and 1332 transitions. [2024-11-27 19:53:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:53:05,552 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 262 [2024-11-27 19:53:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:05,556 INFO L225 Difference]: With dead ends: 889 [2024-11-27 19:53:05,557 INFO L226 Difference]: Without dead ends: 584 [2024-11-27 19:53:05,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:53:05,562 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 813 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:05,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1585 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 19:53:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-27 19:53:05,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 418. [2024-11-27 19:53:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 283 states have (on average 1.3604240282685511) internal successors, (385), 283 states have internal predecessors, (385), 126 states have call successors, (126), 8 states have call predecessors, (126), 8 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:53:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 637 transitions. [2024-11-27 19:53:05,624 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 637 transitions. Word has length 262 [2024-11-27 19:53:05,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:05,625 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 637 transitions. [2024-11-27 19:53:05,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:53:05,625 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 637 transitions. [2024-11-27 19:53:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:53:05,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:05,631 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:05,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:53:05,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:05,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1010137458, now seen corresponding path program 1 times [2024-11-27 19:53:05,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:05,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741668878] [2024-11-27 19:53:05,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:05,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:53:38,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:38,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741668878] [2024-11-27 19:53:38,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741668878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:38,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:38,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 19:53:38,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571183673] [2024-11-27 19:53:38,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:38,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:53:38,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:38,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:53:38,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:53:38,567 INFO L87 Difference]: Start difference. First operand 418 states and 637 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:53:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:40,909 INFO L93 Difference]: Finished difference Result 854 states and 1289 transitions. [2024-11-27 19:53:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:53:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-27 19:53:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:40,913 INFO L225 Difference]: With dead ends: 854 [2024-11-27 19:53:40,913 INFO L226 Difference]: Without dead ends: 539 [2024-11-27 19:53:40,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:53:40,915 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 584 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:40,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1201 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 19:53:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-27 19:53:40,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 416. [2024-11-27 19:53:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 281 states have (on average 1.3558718861209964) internal successors, (381), 281 states have internal predecessors, (381), 126 states have call successors, (126), 8 states have call predecessors, (126), 8 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:53:40,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 633 transitions. [2024-11-27 19:53:40,966 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 633 transitions. Word has length 262 [2024-11-27 19:53:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:40,968 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 633 transitions. [2024-11-27 19:53:40,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:53:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 633 transitions. [2024-11-27 19:53:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:53:40,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:40,971 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:40,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:53:40,971 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:40,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:40,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1878538960, now seen corresponding path program 1 times [2024-11-27 19:53:40,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:40,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541550735] [2024-11-27 19:53:40,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:40,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:53:51,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:51,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541550735] [2024-11-27 19:53:51,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541550735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:51,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:51,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:53:51,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488614771] [2024-11-27 19:53:51,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:51,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:53:51,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:51,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:53:51,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:53:51,429 INFO L87 Difference]: Start difference. First operand 416 states and 633 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:53:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:53,241 INFO L93 Difference]: Finished difference Result 843 states and 1271 transitions. [2024-11-27 19:53:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:53:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 262 [2024-11-27 19:53:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:53,245 INFO L225 Difference]: With dead ends: 843 [2024-11-27 19:53:53,246 INFO L226 Difference]: Without dead ends: 530 [2024-11-27 19:53:53,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2024-11-27 19:53:53,249 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 485 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:53,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1566 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 19:53:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-27 19:53:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 410. [2024-11-27 19:53:53,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 275 states have (on average 1.3563636363636364) internal successors, (373), 275 states have internal predecessors, (373), 126 states have call successors, (126), 8 states have call predecessors, (126), 8 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 19:53:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 625 transitions. [2024-11-27 19:53:53,295 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 625 transitions. Word has length 262 [2024-11-27 19:53:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:53,296 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 625 transitions. [2024-11-27 19:53:53,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:53:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 625 transitions. [2024-11-27 19:53:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:53:53,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:53,301 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:53,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:53:53,301 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:53,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:53,302 INFO L85 PathProgramCache]: Analyzing trace with hash -143022704, now seen corresponding path program 1 times [2024-11-27 19:53:53,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:53,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266877637] [2024-11-27 19:53:53,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:53,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:54:10,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:10,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266877637] [2024-11-27 19:54:10,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266877637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:10,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:10,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:54:10,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349498727] [2024-11-27 19:54:10,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:10,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:54:10,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:10,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:54:10,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:54:10,670 INFO L87 Difference]: Start difference. First operand 410 states and 625 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:54:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:13,966 INFO L93 Difference]: Finished difference Result 759 states and 1161 transitions. [2024-11-27 19:54:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:54:13,967 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-27 19:54:13,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:13,971 INFO L225 Difference]: With dead ends: 759 [2024-11-27 19:54:13,972 INFO L226 Difference]: Without dead ends: 629 [2024-11-27 19:54:13,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:54:13,973 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 492 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:13,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1265 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 19:54:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-27 19:54:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 533. [2024-11-27 19:54:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 354 states have (on average 1.347457627118644) internal successors, (477), 355 states have internal predecessors, (477), 168 states have call successors, (168), 10 states have call predecessors, (168), 10 states have return successors, (168), 167 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-27 19:54:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 813 transitions. [2024-11-27 19:54:14,025 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 813 transitions. Word has length 262 [2024-11-27 19:54:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:14,025 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 813 transitions. [2024-11-27 19:54:14,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:54:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 813 transitions. [2024-11-27 19:54:14,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:54:14,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:14,028 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:14,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:54:14,028 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:14,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:14,029 INFO L85 PathProgramCache]: Analyzing trace with hash -401188142, now seen corresponding path program 1 times [2024-11-27 19:54:14,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:14,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960918819] [2024-11-27 19:54:14,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:54:54,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960918819] [2024-11-27 19:54:54,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960918819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:54,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:54,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:54:54,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804562000] [2024-11-27 19:54:54,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:54,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:54:54,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:54,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:54:54,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:54:54,685 INFO L87 Difference]: Start difference. First operand 533 states and 813 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:54:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:58,109 INFO L93 Difference]: Finished difference Result 1078 states and 1628 transitions. [2024-11-27 19:54:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:54:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 262 [2024-11-27 19:54:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:58,115 INFO L225 Difference]: With dead ends: 1078 [2024-11-27 19:54:58,115 INFO L226 Difference]: Without dead ends: 948 [2024-11-27 19:54:58,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:54:58,117 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 586 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:58,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1808 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 19:54:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-27 19:54:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 694. [2024-11-27 19:54:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 469 states have (on average 1.35181236673774) internal successors, (634), 469 states have internal predecessors, (634), 210 states have call successors, (210), 14 states have call predecessors, (210), 14 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-27 19:54:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1054 transitions. [2024-11-27 19:54:58,200 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1054 transitions. Word has length 262 [2024-11-27 19:54:58,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:58,201 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1054 transitions. [2024-11-27 19:54:58,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:54:58,201 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1054 transitions. [2024-11-27 19:54:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:54:58,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:58,203 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:58,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:54:58,204 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:58,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash 331266064, now seen corresponding path program 1 times [2024-11-27 19:54:58,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:58,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632842027] [2024-11-27 19:54:58,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:58,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:55:00,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:00,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632842027] [2024-11-27 19:55:00,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632842027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:00,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:00,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 19:55:00,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010443096] [2024-11-27 19:55:00,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:00,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:55:00,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:00,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:55:00,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:55:00,862 INFO L87 Difference]: Start difference. First operand 694 states and 1054 transitions. Second operand has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:55:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:04,415 INFO L93 Difference]: Finished difference Result 1367 states and 2059 transitions. [2024-11-27 19:55:04,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:55:04,415 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 262 [2024-11-27 19:55:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:04,419 INFO L225 Difference]: With dead ends: 1367 [2024-11-27 19:55:04,419 INFO L226 Difference]: Without dead ends: 922 [2024-11-27 19:55:04,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-11-27 19:55:04,422 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 624 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:04,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 2534 Invalid, 2507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 19:55:04,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-27 19:55:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 702. [2024-11-27 19:55:04,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 477 states have (on average 1.350104821802935) internal successors, (644), 477 states have internal predecessors, (644), 210 states have call successors, (210), 14 states have call predecessors, (210), 14 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-27 19:55:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1064 transitions. [2024-11-27 19:55:04,500 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1064 transitions. Word has length 262 [2024-11-27 19:55:04,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:04,501 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1064 transitions. [2024-11-27 19:55:04,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:55:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1064 transitions. [2024-11-27 19:55:04,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 19:55:04,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:04,504 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:04,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:55:04,504 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:04,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash 73100626, now seen corresponding path program 1 times [2024-11-27 19:55:04,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:04,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919052006] [2024-11-27 19:55:04,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:04,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:22,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:55:22,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:22,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919052006] [2024-11-27 19:55:22,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919052006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:22,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:22,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 19:55:22,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384675664] [2024-11-27 19:55:22,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:22,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:55:22,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:22,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:55:22,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:55:22,833 INFO L87 Difference]: Start difference. First operand 702 states and 1064 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:55:25,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:25,622 INFO L93 Difference]: Finished difference Result 1405 states and 2121 transitions. [2024-11-27 19:55:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 19:55:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 262 [2024-11-27 19:55:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:25,629 INFO L225 Difference]: With dead ends: 1405 [2024-11-27 19:55:25,629 INFO L226 Difference]: Without dead ends: 952 [2024-11-27 19:55:25,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2024-11-27 19:55:25,631 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 490 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:25,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1748 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 19:55:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-27 19:55:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 696. [2024-11-27 19:55:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 471 states have (on average 1.3503184713375795) internal successors, (636), 471 states have internal predecessors, (636), 210 states have call successors, (210), 14 states have call predecessors, (210), 14 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-27 19:55:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1056 transitions. [2024-11-27 19:55:25,711 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1056 transitions. Word has length 262 [2024-11-27 19:55:25,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:25,711 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 1056 transitions. [2024-11-27 19:55:25,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:55:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1056 transitions. [2024-11-27 19:55:25,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:55:25,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:25,714 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:25,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:55:25,714 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:25,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:25,715 INFO L85 PathProgramCache]: Analyzing trace with hash 540208674, now seen corresponding path program 1 times [2024-11-27 19:55:25,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:25,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735298713] [2024-11-27 19:55:25,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:25,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:55:25,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:25,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735298713] [2024-11-27 19:55:25,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735298713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:25,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:25,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:55:25,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130437368] [2024-11-27 19:55:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:25,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:25,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:25,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:25,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:25,938 INFO L87 Difference]: Start difference. First operand 696 states and 1056 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:55:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:26,073 INFO L93 Difference]: Finished difference Result 1452 states and 2173 transitions. [2024-11-27 19:55:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:26,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 263 [2024-11-27 19:55:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:26,079 INFO L225 Difference]: With dead ends: 1452 [2024-11-27 19:55:26,079 INFO L226 Difference]: Without dead ends: 844 [2024-11-27 19:55:26,081 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 [2024-11-27 19:55:26,081 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 39 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:26,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 619 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-11-27 19:55:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 831. [2024-11-27 19:55:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 583 states have (on average 1.3224699828473414) internal successors, (771), 587 states have internal predecessors, (771), 226 states have call successors, (226), 21 states have call predecessors, (226), 21 states have return successors, (226), 222 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-27 19:55:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1223 transitions. [2024-11-27 19:55:26,167 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1223 transitions. Word has length 263 [2024-11-27 19:55:26,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:26,167 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1223 transitions. [2024-11-27 19:55:26,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:55:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1223 transitions. [2024-11-27 19:55:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:55:26,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:26,170 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:26,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:55:26,170 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:26,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1127014688, now seen corresponding path program 1 times [2024-11-27 19:55:26,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:26,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58772309] [2024-11-27 19:55:26,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:26,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:56:14,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:14,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58772309] [2024-11-27 19:56:14,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58772309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:14,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:14,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:56:14,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117892276] [2024-11-27 19:56:14,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:14,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:56:14,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:14,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:56:14,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:56:14,065 INFO L87 Difference]: Start difference. First operand 831 states and 1223 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:56:17,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:17,774 INFO L93 Difference]: Finished difference Result 1370 states and 1999 transitions. [2024-11-27 19:56:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:56:17,775 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 19:56:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:17,781 INFO L225 Difference]: With dead ends: 1370 [2024-11-27 19:56:17,781 INFO L226 Difference]: Without dead ends: 1210 [2024-11-27 19:56:17,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-27 19:56:17,783 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 537 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:17,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1685 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 19:56:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-27 19:56:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 851. [2024-11-27 19:56:17,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 603 states have (on average 1.328358208955224) internal successors, (801), 607 states have internal predecessors, (801), 226 states have call successors, (226), 21 states have call predecessors, (226), 21 states have return successors, (226), 222 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-27 19:56:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1253 transitions. [2024-11-27 19:56:17,886 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1253 transitions. Word has length 263 [2024-11-27 19:56:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:17,887 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1253 transitions. [2024-11-27 19:56:17,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:56:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1253 transitions. [2024-11-27 19:56:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:56:17,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:17,890 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:17,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:56:17,890 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1392945246, now seen corresponding path program 1 times [2024-11-27 19:56:17,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:17,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679067822] [2024-11-27 19:56:17,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:56:18,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:18,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679067822] [2024-11-27 19:56:18,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679067822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:18,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:18,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:56:18,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548648244] [2024-11-27 19:56:18,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:18,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:56:18,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:18,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:56:18,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:56:18,981 INFO L87 Difference]: Start difference. First operand 851 states and 1253 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:56:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:19,589 INFO L93 Difference]: Finished difference Result 1391 states and 2061 transitions. [2024-11-27 19:56:19,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:56:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 263 [2024-11-27 19:56:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:19,596 INFO L225 Difference]: With dead ends: 1391 [2024-11-27 19:56:19,596 INFO L226 Difference]: Without dead ends: 1231 [2024-11-27 19:56:19,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:56:19,598 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 439 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:19,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1072 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:56:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-27 19:56:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1021. [2024-11-27 19:56:19,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 766 states have (on average 1.3681462140992167) internal successors, (1048), 772 states have internal predecessors, (1048), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:56:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1508 transitions. [2024-11-27 19:56:19,700 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1508 transitions. Word has length 263 [2024-11-27 19:56:19,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:19,701 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1508 transitions. [2024-11-27 19:56:19,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:56:19,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1508 transitions. [2024-11-27 19:56:19,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:56:19,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:19,703 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:19,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 19:56:19,704 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:19,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1349902688, now seen corresponding path program 1 times [2024-11-27 19:56:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:19,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040078483] [2024-11-27 19:56:19,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:19,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:56:30,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:30,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040078483] [2024-11-27 19:56:30,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040078483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:30,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:30,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:56:30,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765976772] [2024-11-27 19:56:30,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:30,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:56:30,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:30,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:56:30,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:56:30,842 INFO L87 Difference]: Start difference. First operand 1021 states and 1508 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:56:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:35,125 INFO L93 Difference]: Finished difference Result 2134 states and 3126 transitions. [2024-11-27 19:56:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:56:35,126 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 19:56:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:35,133 INFO L225 Difference]: With dead ends: 2134 [2024-11-27 19:56:35,134 INFO L226 Difference]: Without dead ends: 1403 [2024-11-27 19:56:35,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:56:35,137 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 569 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:35,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1782 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 19:56:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-11-27 19:56:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1024. [2024-11-27 19:56:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 769 states have (on average 1.3693107932379713) internal successors, (1053), 775 states have internal predecessors, (1053), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:56:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1513 transitions. [2024-11-27 19:56:35,241 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1513 transitions. Word has length 263 [2024-11-27 19:56:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:35,242 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1513 transitions. [2024-11-27 19:56:35,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:56:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1513 transitions. [2024-11-27 19:56:35,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:56:35,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:35,244 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:35,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 19:56:35,245 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:35,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:35,245 INFO L85 PathProgramCache]: Analyzing trace with hash 425104674, now seen corresponding path program 1 times [2024-11-27 19:56:35,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:35,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494629396] [2024-11-27 19:56:35,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:35,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:56:35,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:35,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494629396] [2024-11-27 19:56:35,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494629396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:35,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:35,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:56:35,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461942866] [2024-11-27 19:56:35,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:35,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:56:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:35,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:56:35,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:56:35,647 INFO L87 Difference]: Start difference. First operand 1024 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:56:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:35,889 INFO L93 Difference]: Finished difference Result 1901 states and 2817 transitions. [2024-11-27 19:56:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:56:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 263 [2024-11-27 19:56:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:35,895 INFO L225 Difference]: With dead ends: 1901 [2024-11-27 19:56:35,895 INFO L226 Difference]: Without dead ends: 1167 [2024-11-27 19:56:35,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:56:35,898 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 156 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:35,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 664 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:56:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2024-11-27 19:56:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1024. [2024-11-27 19:56:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 769 states have (on average 1.3589076723016904) internal successors, (1045), 775 states have internal predecessors, (1045), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:56:36,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1505 transitions. [2024-11-27 19:56:36,021 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1505 transitions. Word has length 263 [2024-11-27 19:56:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:36,021 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1505 transitions. [2024-11-27 19:56:36,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:56:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1505 transitions. [2024-11-27 19:56:36,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:56:36,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:36,024 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:36,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 19:56:36,024 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:36,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:36,025 INFO L85 PathProgramCache]: Analyzing trace with hash -117752416, now seen corresponding path program 1 times [2024-11-27 19:56:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:36,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756171114] [2024-11-27 19:56:36,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:36,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:56:54,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:54,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756171114] [2024-11-27 19:56:54,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756171114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:54,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:54,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 19:56:54,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194212233] [2024-11-27 19:56:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:54,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:56:54,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:54,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:56:54,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:56:54,842 INFO L87 Difference]: Start difference. First operand 1024 states and 1505 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:56:57,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:57,560 INFO L93 Difference]: Finished difference Result 2072 states and 3031 transitions. [2024-11-27 19:56:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 19:56:57,561 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 19:56:57,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:57,568 INFO L225 Difference]: With dead ends: 2072 [2024-11-27 19:56:57,568 INFO L226 Difference]: Without dead ends: 1338 [2024-11-27 19:56:57,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:56:57,571 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 493 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:57,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1424 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 19:56:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-27 19:56:57,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1019. [2024-11-27 19:56:57,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 764 states have (on average 1.3586387434554974) internal successors, (1038), 770 states have internal predecessors, (1038), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:56:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1498 transitions. [2024-11-27 19:56:57,672 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1498 transitions. Word has length 263 [2024-11-27 19:56:57,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:57,673 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1498 transitions. [2024-11-27 19:56:57,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:56:57,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1498 transitions. [2024-11-27 19:56:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:56:57,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:57,676 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:57,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 19:56:57,676 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:57,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash 993001182, now seen corresponding path program 1 times [2024-11-27 19:56:57,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:57,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555399724] [2024-11-27 19:56:57,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:57,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:59:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555399724] [2024-11-27 19:59:00,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555399724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:00,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:00,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-27 19:59:00,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530791896] [2024-11-27 19:59:00,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:00,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 19:59:00,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:00,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 19:59:00,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:59:00,133 INFO L87 Difference]: Start difference. First operand 1019 states and 1498 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-27 19:59:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:18,990 INFO L93 Difference]: Finished difference Result 1705 states and 2479 transitions. [2024-11-27 19:59:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:59:18,991 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 263 [2024-11-27 19:59:18,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:18,998 INFO L225 Difference]: With dead ends: 1705 [2024-11-27 19:59:18,998 INFO L226 Difference]: Without dead ends: 1455 [2024-11-27 19:59:18,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=292, Invalid=1190, Unknown=0, NotChecked=0, Total=1482 [2024-11-27 19:59:19,000 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 959 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 2414 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:19,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1772 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 2414 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-27 19:59:19,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2024-11-27 19:59:19,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1040. [2024-11-27 19:59:19,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 785 states have (on average 1.3668789808917197) internal successors, (1073), 791 states have internal predecessors, (1073), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:59:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1533 transitions. [2024-11-27 19:59:19,112 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1533 transitions. Word has length 263 [2024-11-27 19:59:19,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:19,112 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1533 transitions. [2024-11-27 19:59:19,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-27 19:59:19,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1533 transitions. [2024-11-27 19:59:19,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:59:19,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:19,115 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:19,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 19:59:19,115 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:19,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:19,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1526958752, now seen corresponding path program 1 times [2024-11-27 19:59:19,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:19,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003814842] [2024-11-27 19:59:19,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:19,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:59:20,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:20,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003814842] [2024-11-27 19:59:20,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003814842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:20,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:20,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 19:59:20,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753121610] [2024-11-27 19:59:20,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:20,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:59:20,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:20,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:59:20,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:59:20,436 INFO L87 Difference]: Start difference. First operand 1040 states and 1533 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:59:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:21,204 INFO L93 Difference]: Finished difference Result 1762 states and 2583 transitions. [2024-11-27 19:59:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:59:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 263 [2024-11-27 19:59:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:21,211 INFO L225 Difference]: With dead ends: 1762 [2024-11-27 19:59:21,212 INFO L226 Difference]: Without dead ends: 1512 [2024-11-27 19:59:21,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:59:21,214 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 257 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:21,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1273 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:59:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-11-27 19:59:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1121. [2024-11-27 19:59:21,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 866 states have (on average 1.384526558891455) internal successors, (1199), 872 states have internal predecessors, (1199), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:59:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1659 transitions. [2024-11-27 19:59:21,358 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1659 transitions. Word has length 263 [2024-11-27 19:59:21,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:21,359 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1659 transitions. [2024-11-27 19:59:21,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 19:59:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1659 transitions. [2024-11-27 19:59:21,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:59:21,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:21,361 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:21,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 19:59:21,362 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:21,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:21,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2069815842, now seen corresponding path program 1 times [2024-11-27 19:59:21,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:21,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224970668] [2024-11-27 19:59:21,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:21,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:59:36,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224970668] [2024-11-27 19:59:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224970668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:59:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627264891] [2024-11-27 19:59:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:36,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:59:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:36,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:59:36,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:59:36,091 INFO L87 Difference]: Start difference. First operand 1121 states and 1659 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:59:39,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:39,998 INFO L93 Difference]: Finished difference Result 1857 states and 2709 transitions. [2024-11-27 19:59:39,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:59:39,999 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 19:59:40,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:40,006 INFO L225 Difference]: With dead ends: 1857 [2024-11-27 19:59:40,007 INFO L226 Difference]: Without dead ends: 1561 [2024-11-27 19:59:40,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2024-11-27 19:59:40,010 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 587 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:40,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1895 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 19:59:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-11-27 19:59:40,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1146. [2024-11-27 19:59:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 891 states have (on average 1.387205387205387) internal successors, (1236), 897 states have internal predecessors, (1236), 230 states have call successors, (230), 24 states have call predecessors, (230), 24 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 19:59:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1696 transitions. [2024-11-27 19:59:40,125 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1696 transitions. Word has length 263 [2024-11-27 19:59:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:40,125 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1696 transitions. [2024-11-27 19:59:40,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 19:59:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1696 transitions. [2024-11-27 19:59:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 19:59:40,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:40,128 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:40,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 19:59:40,128 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:40,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:40,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1832124444, now seen corresponding path program 1 times [2024-11-27 19:59:40,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:40,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184459688] [2024-11-27 19:59:40,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:40,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 19:59:56,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184459688] [2024-11-27 19:59:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184459688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:56,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 19:59:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134033445] [2024-11-27 19:59:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:56,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:59:56,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:56,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:59:56,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:59:56,705 INFO L87 Difference]: Start difference. First operand 1146 states and 1696 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:00,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:00,237 INFO L93 Difference]: Finished difference Result 1930 states and 2805 transitions. [2024-11-27 20:00:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:00:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 20:00:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:00,245 INFO L225 Difference]: With dead ends: 1930 [2024-11-27 20:00:00,245 INFO L226 Difference]: Without dead ends: 1634 [2024-11-27 20:00:00,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=231, Invalid=699, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:00:00,247 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 884 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:00,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1467 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 20:00:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-27 20:00:00,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1153. [2024-11-27 20:00:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 897 states have (on average 1.386845039018952) internal successors, (1244), 903 states have internal predecessors, (1244), 230 states have call successors, (230), 25 states have call predecessors, (230), 25 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 20:00:00,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1704 transitions. [2024-11-27 20:00:00,347 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1704 transitions. Word has length 263 [2024-11-27 20:00:00,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:00,347 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1704 transitions. [2024-11-27 20:00:00,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1704 transitions. [2024-11-27 20:00:00,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 20:00:00,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:00,350 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:00,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:00:00,350 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:00,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -687835490, now seen corresponding path program 1 times [2024-11-27 20:00:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598069666] [2024-11-27 20:00:00,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 20:00:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598069666] [2024-11-27 20:00:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598069666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:22,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 20:00:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672052243] [2024-11-27 20:00:22,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:22,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:00:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:00:22,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:00:22,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:00:22,398 INFO L87 Difference]: Start difference. First operand 1153 states and 1704 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:24,694 INFO L93 Difference]: Finished difference Result 1944 states and 2821 transitions. [2024-11-27 20:00:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:00:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 20:00:24,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:24,699 INFO L225 Difference]: With dead ends: 1944 [2024-11-27 20:00:24,699 INFO L226 Difference]: Without dead ends: 1648 [2024-11-27 20:00:24,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:00:24,701 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 730 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:24,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1352 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:00:24,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-11-27 20:00:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1153. [2024-11-27 20:00:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 897 states have (on average 1.386845039018952) internal successors, (1244), 903 states have internal predecessors, (1244), 230 states have call successors, (230), 25 states have call predecessors, (230), 25 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 20:00:24,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1704 transitions. [2024-11-27 20:00:24,811 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1704 transitions. Word has length 263 [2024-11-27 20:00:24,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:24,812 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1704 transitions. [2024-11-27 20:00:24,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1704 transitions. [2024-11-27 20:00:24,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 20:00:24,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:24,815 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:24,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 20:00:24,815 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:24,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1483916194, now seen corresponding path program 1 times [2024-11-27 20:00:24,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:24,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032360215] [2024-11-27 20:00:24,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:24,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 20:00:35,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:35,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032360215] [2024-11-27 20:00:35,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032360215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:35,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:35,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 20:00:35,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933838731] [2024-11-27 20:00:35,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:35,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:00:35,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:00:35,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:00:35,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:00:35,246 INFO L87 Difference]: Start difference. First operand 1153 states and 1704 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:37,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:37,841 INFO L93 Difference]: Finished difference Result 2089 states and 3075 transitions. [2024-11-27 20:00:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:00:37,841 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 20:00:37,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:37,850 INFO L225 Difference]: With dead ends: 2089 [2024-11-27 20:00:37,850 INFO L226 Difference]: Without dead ends: 1288 [2024-11-27 20:00:37,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=174, Invalid=378, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:00:37,853 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 529 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:37,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1588 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:00:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2024-11-27 20:00:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1159. [2024-11-27 20:00:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 902 states have (on average 1.3847006651884701) internal successors, (1249), 908 states have internal predecessors, (1249), 230 states have call successors, (230), 26 states have call predecessors, (230), 26 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 20:00:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1709 transitions. [2024-11-27 20:00:37,967 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1709 transitions. Word has length 263 [2024-11-27 20:00:37,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:37,967 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1709 transitions. [2024-11-27 20:00:37,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1709 transitions. [2024-11-27 20:00:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 20:00:37,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:37,970 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:37,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 20:00:37,970 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:37,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash 291091168, now seen corresponding path program 1 times [2024-11-27 20:00:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:37,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870320314] [2024-11-27 20:00:37,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 20:00:39,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:39,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870320314] [2024-11-27 20:00:39,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870320314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:39,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:39,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:00:39,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62681543] [2024-11-27 20:00:39,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:39,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:00:39,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:00:39,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:00:39,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:00:39,746 INFO L87 Difference]: Start difference. First operand 1159 states and 1709 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:41,412 INFO L93 Difference]: Finished difference Result 2125 states and 3116 transitions. [2024-11-27 20:00:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:00:41,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-27 20:00:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:41,420 INFO L225 Difference]: With dead ends: 2125 [2024-11-27 20:00:41,420 INFO L226 Difference]: Without dead ends: 1318 [2024-11-27 20:00:41,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:00:41,425 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 490 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:41,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1281 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:00:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-11-27 20:00:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1157. [2024-11-27 20:00:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 900 states have (on average 1.3844444444444444) internal successors, (1246), 906 states have internal predecessors, (1246), 230 states have call successors, (230), 26 states have call predecessors, (230), 26 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 20:00:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1706 transitions. [2024-11-27 20:00:41,555 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1706 transitions. Word has length 263 [2024-11-27 20:00:41,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:41,555 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1706 transitions. [2024-11-27 20:00:41,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-27 20:00:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1706 transitions. [2024-11-27 20:00:41,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-27 20:00:41,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:41,558 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:41,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 20:00:41,560 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:41,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:41,560 INFO L85 PathProgramCache]: Analyzing trace with hash -700387993, now seen corresponding path program 1 times [2024-11-27 20:00:41,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:41,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218288780] [2024-11-27 20:00:41,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:41,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:02:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 20:02:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:02:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218288780] [2024-11-27 20:02:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218288780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:02:08,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:02:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:02:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663571633] [2024-11-27 20:02:08,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:02:08,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:02:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:02:08,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:02:08,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:02:08,878 INFO L87 Difference]: Start difference. First operand 1157 states and 1706 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 20:02:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:02:11,350 INFO L93 Difference]: Finished difference Result 1749 states and 2574 transitions. [2024-11-27 20:02:11,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:02:11,351 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 264 [2024-11-27 20:02:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:02:11,358 INFO L225 Difference]: With dead ends: 1749 [2024-11-27 20:02:11,358 INFO L226 Difference]: Without dead ends: 1453 [2024-11-27 20:02:11,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:02:11,360 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 657 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:02:11,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1259 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:02:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2024-11-27 20:02:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1157. [2024-11-27 20:02:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 900 states have (on average 1.3844444444444444) internal successors, (1246), 906 states have internal predecessors, (1246), 230 states have call successors, (230), 26 states have call predecessors, (230), 26 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 20:02:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1706 transitions. [2024-11-27 20:02:11,475 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1706 transitions. Word has length 264 [2024-11-27 20:02:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:02:11,476 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1706 transitions. [2024-11-27 20:02:11,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-27 20:02:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1706 transitions. [2024-11-27 20:02:11,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-27 20:02:11,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:02:11,479 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:02:11,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:02:11,479 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:02:11,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:02:11,479 INFO L85 PathProgramCache]: Analyzing trace with hash -958553431, now seen corresponding path program 1 times [2024-11-27 20:02:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:02:11,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501144972] [2024-11-27 20:02:11,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:02:11,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:02:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-27 20:03:34,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:34,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501144972] [2024-11-27 20:03:34,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501144972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:34,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:34,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-27 20:03:34,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662092616] [2024-11-27 20:03:34,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:34,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:03:34,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:34,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:03:34,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:03:34,674 INFO L87 Difference]: Start difference. First operand 1157 states and 1706 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-27 20:03:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:43,314 INFO L93 Difference]: Finished difference Result 1848 states and 2699 transitions. [2024-11-27 20:03:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:03:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 264 [2024-11-27 20:03:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:43,319 INFO L225 Difference]: With dead ends: 1848 [2024-11-27 20:03:43,319 INFO L226 Difference]: Without dead ends: 1552 [2024-11-27 20:03:43,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=389, Invalid=1333, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 20:03:43,321 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 995 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:43,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1976 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 20:03:43,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2024-11-27 20:03:43,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1162. [2024-11-27 20:03:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 905 states have (on average 1.3845303867403316) internal successors, (1253), 911 states have internal predecessors, (1253), 230 states have call successors, (230), 26 states have call predecessors, (230), 26 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-27 20:03:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1713 transitions. [2024-11-27 20:03:43,440 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1713 transitions. Word has length 264 [2024-11-27 20:03:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:43,441 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1713 transitions. [2024-11-27 20:03:43,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-27 20:03:43,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1713 transitions. [2024-11-27 20:03:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-27 20:03:43,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:43,443 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:43,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 20:03:43,443 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:03:43,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:43,444 INFO L85 PathProgramCache]: Analyzing trace with hash 189572009, now seen corresponding path program 1 times [2024-11-27 20:03:43,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:43,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477513201] [2024-11-27 20:03:43,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:43,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat