./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC --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 ecdc1df8791622fbe3f4dcfbea3b27b9095dd3e12c90083fff586730bc575daa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:35:12,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:35:12,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:35:12,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:35:12,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:35:12,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:35:12,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:35:12,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:35:12,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:35:12,677 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:35:12,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:35:12,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:35:12,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:35:12,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:35:12,678 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:35:12,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:35:12,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:35:12,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:35:12,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:35:12,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:35:12,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:35:12,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:35:12,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:35:12,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:35:12,680 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:35:12,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:35:12,680 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:35:12,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:35:12,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:12,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:35:12,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:12,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:35:12,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:35:12,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:35:12,691 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_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC 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 -> ecdc1df8791622fbe3f4dcfbea3b27b9095dd3e12c90083fff586730bc575daa [2024-11-23 22:35:13,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:35:13,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:35:13,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:35:13,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:35:13,160 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:35:13,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c [2024-11-23 22:35:16,684 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/data/3f1562a5d/52647916fe4e4068b24828778f41d16b/FLAG8821738fb [2024-11-23 22:35:17,413 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:35:17,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c [2024-11-23 22:35:17,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/data/3f1562a5d/52647916fe4e4068b24828778f41d16b/FLAG8821738fb [2024-11-23 22:35:17,485 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/data/3f1562a5d/52647916fe4e4068b24828778f41d16b [2024-11-23 22:35:17,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:35:17,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:35:17,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:35:17,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:35:17,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:35:17,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:17" (1/1) ... [2024-11-23 22:35:17,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1953c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:17, skipping insertion in model container [2024-11-23 22:35:17,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:17" (1/1) ... [2024-11-23 22:35:17,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:35:18,230 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_989a8682-de80-421e-9c91-82bf5a15d97b/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[15482,15495] [2024-11-23 22:35:18,298 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_989a8682-de80-421e-9c91-82bf5a15d97b/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[17819,17832] [2024-11-23 22:35:19,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:35:19,521 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:35:19,586 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_989a8682-de80-421e-9c91-82bf5a15d97b/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[15482,15495] [2024-11-23 22:35:19,601 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_989a8682-de80-421e-9c91-82bf5a15d97b/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[17819,17832] [2024-11-23 22:35:20,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:35:20,258 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:35:20,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20 WrapperNode [2024-11-23 22:35:20,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:35:20,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:35:20,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:35:20,263 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:35:20,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:20,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:20,998 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-23 22:35:20,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:35:21,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:35:21,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:35:21,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:35:21,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,145 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,392 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]. [2024-11-23 22:35:21,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:35:21,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:35:21,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:35:21,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:35:21,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (1/1) ... [2024-11-23 22:35:21,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:21,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:22,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:35:22,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:35:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:35:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:35:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:35:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:35:22,263 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:35:22,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:35:30,302 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-23 22:35:30,303 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:35:30,363 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:35:30,363 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 22:35:30,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:30 BoogieIcfgContainer [2024-11-23 22:35:30,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:35:30,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:35:30,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:35:30,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:35:30,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:17" (1/3) ... [2024-11-23 22:35:30,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c63338d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:30, skipping insertion in model container [2024-11-23 22:35:30,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:20" (2/3) ... [2024-11-23 22:35:30,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c63338d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:30, skipping insertion in model container [2024-11-23 22:35:30,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:30" (3/3) ... [2024-11-23 22:35:30,379 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c [2024-11-23 22:35:30,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:35:30,401 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c that has 1 procedures, 915 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 22:35:30,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:35:30,534 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;@32cc06f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:35:30,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 22:35:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:30,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-23 22:35:30,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:30,552 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:30,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash -549665915, now seen corresponding path program 1 times [2024-11-23 22:35:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:30,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295781963] [2024-11-23 22:35:30,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:30,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:31,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295781963] [2024-11-23 22:35:31,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295781963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:31,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:31,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:35:31,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152219157] [2024-11-23 22:35:31,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:31,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:31,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:31,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:31,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:31,093 INFO L87 Difference]: Start difference. First operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:37,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:37,508 INFO L93 Difference]: Finished difference Result 2555 states and 4902 transitions. [2024-11-23 22:35:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:37,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-23 22:35:37,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:37,549 INFO L225 Difference]: With dead ends: 2555 [2024-11-23 22:35:37,549 INFO L226 Difference]: Without dead ends: 1600 [2024-11-23 22:35:37,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:37,560 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 968 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:37,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 694 Invalid, 3033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-23 22:35:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-23 22:35:37,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-11-23 22:35:37,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.6157697121401753) internal successors, (2582), 1599 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2582 transitions. [2024-11-23 22:35:37,753 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2582 transitions. Word has length 20 [2024-11-23 22:35:37,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:37,753 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2582 transitions. [2024-11-23 22:35:37,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2582 transitions. [2024-11-23 22:35:37,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-23 22:35:37,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:37,757 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:37,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:35:37,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:37,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:37,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1759666809, now seen corresponding path program 1 times [2024-11-23 22:35:37,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:37,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236342088] [2024-11-23 22:35:37,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:38,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:38,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:38,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236342088] [2024-11-23 22:35:38,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236342088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:38,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:38,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:35:38,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655591111] [2024-11-23 22:35:38,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:38,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:38,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:38,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:38,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:38,177 INFO L87 Difference]: Start difference. First operand 1600 states and 2582 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:38,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:38,330 INFO L93 Difference]: Finished difference Result 1653 states and 2664 transitions. [2024-11-23 22:35:38,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:38,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-23 22:35:38,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:38,341 INFO L225 Difference]: With dead ends: 1653 [2024-11-23 22:35:38,341 INFO L226 Difference]: Without dead ends: 1600 [2024-11-23 22:35:38,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:38,345 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:38,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6359 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-23 22:35:38,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-11-23 22:35:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.590738423028786) internal successors, (2542), 1599 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2542 transitions. [2024-11-23 22:35:38,414 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2542 transitions. Word has length 27 [2024-11-23 22:35:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:38,415 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2542 transitions. [2024-11-23 22:35:38,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2542 transitions. [2024-11-23 22:35:38,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 22:35:38,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:38,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:38,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:35:38,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:38,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:38,425 INFO L85 PathProgramCache]: Analyzing trace with hash -757922131, now seen corresponding path program 1 times [2024-11-23 22:35:38,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:38,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432045562] [2024-11-23 22:35:38,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:38,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:38,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:38,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432045562] [2024-11-23 22:35:38,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432045562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:38,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:38,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:38,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921659214] [2024-11-23 22:35:38,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:38,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:38,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:38,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:38,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:38,979 INFO L87 Difference]: Start difference. First operand 1600 states and 2542 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:39,513 INFO L93 Difference]: Finished difference Result 2188 states and 3478 transitions. [2024-11-23 22:35:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:35:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-23 22:35:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:39,526 INFO L225 Difference]: With dead ends: 2188 [2024-11-23 22:35:39,526 INFO L226 Difference]: Without dead ends: 2139 [2024-11-23 22:35:39,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:35:39,532 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 9700 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9700 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:39,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9700 Valid, 3471 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:35:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2024-11-23 22:35:39,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1647. [2024-11-23 22:35:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1645 states have (on average 1.5908814589665654) internal successors, (2617), 1646 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:39,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2617 transitions. [2024-11-23 22:35:39,630 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2617 transitions. Word has length 66 [2024-11-23 22:35:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:39,634 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2617 transitions. [2024-11-23 22:35:39,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2617 transitions. [2024-11-23 22:35:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 22:35:39,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:39,637 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:39,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:35:39,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:39,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:39,642 INFO L85 PathProgramCache]: Analyzing trace with hash 365578237, now seen corresponding path program 1 times [2024-11-23 22:35:39,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:39,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937655290] [2024-11-23 22:35:39,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:39,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:39,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937655290] [2024-11-23 22:35:39,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937655290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:39,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:39,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:39,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858139616] [2024-11-23 22:35:39,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:39,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:39,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:39,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:39,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:39,915 INFO L87 Difference]: Start difference. First operand 1647 states and 2617 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:39,986 INFO L93 Difference]: Finished difference Result 1828 states and 2904 transitions. [2024-11-23 22:35:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-23 22:35:39,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:39,998 INFO L225 Difference]: With dead ends: 1828 [2024-11-23 22:35:39,998 INFO L226 Difference]: Without dead ends: 1732 [2024-11-23 22:35:39,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:40,000 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 1490 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:40,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1633 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-23 22:35:40,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-11-23 22:35:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.5896990740740742) internal successors, (2747), 1729 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:40,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2747 transitions. [2024-11-23 22:35:40,066 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2747 transitions. Word has length 68 [2024-11-23 22:35:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:40,067 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2747 transitions. [2024-11-23 22:35:40,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:40,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2747 transitions. [2024-11-23 22:35:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 22:35:40,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:40,070 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:40,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:35:40,070 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash 432071749, now seen corresponding path program 1 times [2024-11-23 22:35:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953770456] [2024-11-23 22:35:40,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:40,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:40,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953770456] [2024-11-23 22:35:40,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953770456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:40,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:40,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:40,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430844907] [2024-11-23 22:35:40,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:40,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:40,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:40,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:40,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:40,799 INFO L87 Difference]: Start difference. First operand 1730 states and 2747 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:41,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:41,320 INFO L93 Difference]: Finished difference Result 1911 states and 3031 transitions. [2024-11-23 22:35:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:35:41,321 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-23 22:35:41,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:41,330 INFO L225 Difference]: With dead ends: 1911 [2024-11-23 22:35:41,330 INFO L226 Difference]: Without dead ends: 1732 [2024-11-23 22:35:41,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:35:41,332 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 3024 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:41,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 1931 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-23 22:35:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-11-23 22:35:41,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.5885416666666667) internal successors, (2745), 1729 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:41,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2745 transitions. [2024-11-23 22:35:41,395 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2745 transitions. Word has length 68 [2024-11-23 22:35:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:41,395 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2745 transitions. [2024-11-23 22:35:41,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2745 transitions. [2024-11-23 22:35:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 22:35:41,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:41,398 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:41,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:35:41,398 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:41,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:41,399 INFO L85 PathProgramCache]: Analyzing trace with hash 94599333, now seen corresponding path program 1 times [2024-11-23 22:35:41,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:41,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373537150] [2024-11-23 22:35:41,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:41,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:41,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:41,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373537150] [2024-11-23 22:35:41,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373537150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:41,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:41,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:35:41,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554075509] [2024-11-23 22:35:41,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:41,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:41,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:41,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:41,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:41,869 INFO L87 Difference]: Start difference. First operand 1730 states and 2745 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:41,954 INFO L93 Difference]: Finished difference Result 1738 states and 2754 transitions. [2024-11-23 22:35:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-23 22:35:41,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:41,971 INFO L225 Difference]: With dead ends: 1738 [2024-11-23 22:35:41,972 INFO L226 Difference]: Without dead ends: 1736 [2024-11-23 22:35:41,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:41,974 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 0 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:41,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6231 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-23 22:35:42,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-23 22:35:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1734 states have (on average 1.585928489042676) internal successors, (2750), 1735 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2750 transitions. [2024-11-23 22:35:42,037 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2750 transitions. Word has length 69 [2024-11-23 22:35:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:42,038 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2750 transitions. [2024-11-23 22:35:42,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2750 transitions. [2024-11-23 22:35:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:35:42,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:42,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:42,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:35:42,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:42,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash -988941275, now seen corresponding path program 1 times [2024-11-23 22:35:42,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:42,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954430815] [2024-11-23 22:35:42,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:42,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:42,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:42,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954430815] [2024-11-23 22:35:42,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954430815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:42,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:42,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:42,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633352471] [2024-11-23 22:35:42,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:42,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:42,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:42,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:42,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:42,168 INFO L87 Difference]: Start difference. First operand 1736 states and 2750 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:42,231 INFO L93 Difference]: Finished difference Result 2090 states and 3294 transitions. [2024-11-23 22:35:42,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:42,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 22:35:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:42,242 INFO L225 Difference]: With dead ends: 2090 [2024-11-23 22:35:42,242 INFO L226 Difference]: Without dead ends: 1905 [2024-11-23 22:35:42,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:42,244 INFO L435 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:42,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1702 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-11-23 22:35:42,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1903. [2024-11-23 22:35:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1901 states have (on average 1.5796948974224092) internal successors, (3003), 1902 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 3003 transitions. [2024-11-23 22:35:42,310 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 3003 transitions. Word has length 70 [2024-11-23 22:35:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:42,311 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 3003 transitions. [2024-11-23 22:35:42,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 3003 transitions. [2024-11-23 22:35:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:35:42,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:42,312 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:42,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:35:42,312 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:42,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:42,313 INFO L85 PathProgramCache]: Analyzing trace with hash -725084891, now seen corresponding path program 1 times [2024-11-23 22:35:42,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:42,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157125069] [2024-11-23 22:35:42,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:42,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:42,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157125069] [2024-11-23 22:35:42,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157125069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:42,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:42,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:42,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105621843] [2024-11-23 22:35:42,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:42,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:42,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:42,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:42,420 INFO L87 Difference]: Start difference. First operand 1903 states and 3003 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:42,498 INFO L93 Difference]: Finished difference Result 2575 states and 4025 transitions. [2024-11-23 22:35:42,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:42,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 22:35:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:42,509 INFO L225 Difference]: With dead ends: 2575 [2024-11-23 22:35:42,509 INFO L226 Difference]: Without dead ends: 2223 [2024-11-23 22:35:42,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:42,511 INFO L435 NwaCegarLoop]: 1617 mSDtfsCounter, 1502 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:42,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2024-11-23 22:35:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2221. [2024-11-23 22:35:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2219 states have (on average 1.5669220369535828) internal successors, (3477), 2220 states have internal predecessors, (3477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3477 transitions. [2024-11-23 22:35:42,678 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3477 transitions. Word has length 70 [2024-11-23 22:35:42,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:42,678 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 3477 transitions. [2024-11-23 22:35:42,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3477 transitions. [2024-11-23 22:35:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:35:42,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:42,680 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:42,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:35:42,680 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:42,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:42,681 INFO L85 PathProgramCache]: Analyzing trace with hash 513177125, now seen corresponding path program 1 times [2024-11-23 22:35:42,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:42,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606369622] [2024-11-23 22:35:42,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:42,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:42,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:42,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606369622] [2024-11-23 22:35:42,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606369622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:42,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:42,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:42,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103662794] [2024-11-23 22:35:42,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:42,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:42,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:42,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:42,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:42,882 INFO L87 Difference]: Start difference. First operand 2221 states and 3477 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:43,011 INFO L93 Difference]: Finished difference Result 3497 states and 5391 transitions. [2024-11-23 22:35:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:43,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 22:35:43,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:43,040 INFO L225 Difference]: With dead ends: 3497 [2024-11-23 22:35:43,040 INFO L226 Difference]: Without dead ends: 2827 [2024-11-23 22:35:43,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:43,066 INFO L435 NwaCegarLoop]: 1615 mSDtfsCounter, 1500 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:43,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:43,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-23 22:35:43,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2825. [2024-11-23 22:35:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2823 states have (on average 1.544810485299327) internal successors, (4361), 2824 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4361 transitions. [2024-11-23 22:35:43,203 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4361 transitions. Word has length 70 [2024-11-23 22:35:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:43,203 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 4361 transitions. [2024-11-23 22:35:43,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4361 transitions. [2024-11-23 22:35:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:35:43,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:43,204 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:43,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:35:43,205 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:43,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1702291675, now seen corresponding path program 1 times [2024-11-23 22:35:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:43,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527435896] [2024-11-23 22:35:43,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:43,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:43,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:43,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527435896] [2024-11-23 22:35:43,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527435896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:43,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:43,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:43,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767168434] [2024-11-23 22:35:43,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:43,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:43,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:43,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:43,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:43,343 INFO L87 Difference]: Start difference. First operand 2825 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:43,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:43,457 INFO L93 Difference]: Finished difference Result 5245 states and 7931 transitions. [2024-11-23 22:35:43,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:43,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 22:35:43,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:43,476 INFO L225 Difference]: With dead ends: 5245 [2024-11-23 22:35:43,477 INFO L226 Difference]: Without dead ends: 3971 [2024-11-23 22:35:43,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:43,481 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 1498 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:43,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3971 states. [2024-11-23 22:35:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3971 to 3969. [2024-11-23 22:35:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3969 states, 3967 states have (on average 1.5127300226871692) internal successors, (6001), 3968 states have internal predecessors, (6001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:43,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3969 states to 3969 states and 6001 transitions. [2024-11-23 22:35:43,644 INFO L78 Accepts]: Start accepts. Automaton has 3969 states and 6001 transitions. Word has length 70 [2024-11-23 22:35:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:43,644 INFO L471 AbstractCegarLoop]: Abstraction has 3969 states and 6001 transitions. [2024-11-23 22:35:43,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:43,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3969 states and 6001 transitions. [2024-11-23 22:35:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:35:43,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:43,647 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:43,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:35:43,647 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:43,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash 78641189, now seen corresponding path program 1 times [2024-11-23 22:35:43,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:43,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726676043] [2024-11-23 22:35:43,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:43,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:43,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726676043] [2024-11-23 22:35:43,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726676043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:43,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:43,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049106426] [2024-11-23 22:35:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:43,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:43,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:43,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:43,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:43,743 INFO L87 Difference]: Start difference. First operand 3969 states and 6001 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:44,013 INFO L93 Difference]: Finished difference Result 8549 states and 12627 transitions. [2024-11-23 22:35:44,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:44,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 22:35:44,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:44,052 INFO L225 Difference]: With dead ends: 8549 [2024-11-23 22:35:44,052 INFO L226 Difference]: Without dead ends: 6131 [2024-11-23 22:35:44,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:44,056 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 1496 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:44,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:44,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2024-11-23 22:35:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6129. [2024-11-23 22:35:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6127 states have (on average 1.4729884119471193) internal successors, (9025), 6128 states have internal predecessors, (9025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9025 transitions. [2024-11-23 22:35:44,307 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9025 transitions. Word has length 70 [2024-11-23 22:35:44,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:44,307 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 9025 transitions. [2024-11-23 22:35:44,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9025 transitions. [2024-11-23 22:35:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 22:35:44,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:44,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:44,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:35:44,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:44,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:44,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1151855835, now seen corresponding path program 1 times [2024-11-23 22:35:44,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:44,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451491280] [2024-11-23 22:35:44,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:44,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:44,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:44,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451491280] [2024-11-23 22:35:44,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451491280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:44,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:44,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108415635] [2024-11-23 22:35:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:44,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:44,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:44,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:44,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:44,410 INFO L87 Difference]: Start difference. First operand 6129 states and 9025 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:44,641 INFO L93 Difference]: Finished difference Result 11000 states and 16071 transitions. [2024-11-23 22:35:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:44,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 22:35:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:44,671 INFO L225 Difference]: With dead ends: 11000 [2024-11-23 22:35:44,671 INFO L226 Difference]: Without dead ends: 8438 [2024-11-23 22:35:44,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:44,678 INFO L435 NwaCegarLoop]: 1625 mSDtfsCounter, 1506 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:44,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2024-11-23 22:35:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 8436. [2024-11-23 22:35:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8436 states, 8434 states have (on average 1.4536400284562485) internal successors, (12260), 8435 states have internal predecessors, (12260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8436 states to 8436 states and 12260 transitions. [2024-11-23 22:35:45,157 INFO L78 Accepts]: Start accepts. Automaton has 8436 states and 12260 transitions. Word has length 70 [2024-11-23 22:35:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:45,158 INFO L471 AbstractCegarLoop]: Abstraction has 8436 states and 12260 transitions. [2024-11-23 22:35:45,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 8436 states and 12260 transitions. [2024-11-23 22:35:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:35:45,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:45,163 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:45,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:35:45,163 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:45,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:45,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1578521922, now seen corresponding path program 1 times [2024-11-23 22:35:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:45,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333628060] [2024-11-23 22:35:45,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:45,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 22:35:45,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:45,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333628060] [2024-11-23 22:35:45,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333628060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:45,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:45,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604981095] [2024-11-23 22:35:45,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:45,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:45,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:45,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:45,510 INFO L87 Difference]: Start difference. First operand 8436 states and 12260 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:47,310 INFO L93 Difference]: Finished difference Result 51170 states and 72971 transitions. [2024-11-23 22:35:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:35:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 22:35:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:47,429 INFO L225 Difference]: With dead ends: 51170 [2024-11-23 22:35:47,429 INFO L226 Difference]: Without dead ends: 44288 [2024-11-23 22:35:47,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:35:47,445 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 8033 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:47,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 4013 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:35:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44288 states. [2024-11-23 22:35:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44288 to 15316. [2024-11-23 22:35:48,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15316 states, 15314 states have (on average 1.4337207783727308) internal successors, (21956), 15315 states have internal predecessors, (21956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15316 states to 15316 states and 21956 transitions. [2024-11-23 22:35:48,526 INFO L78 Accepts]: Start accepts. Automaton has 15316 states and 21956 transitions. Word has length 92 [2024-11-23 22:35:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:48,526 INFO L471 AbstractCegarLoop]: Abstraction has 15316 states and 21956 transitions. [2024-11-23 22:35:48,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:48,528 INFO L276 IsEmpty]: Start isEmpty. Operand 15316 states and 21956 transitions. [2024-11-23 22:35:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:35:48,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:48,534 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:35:48,534 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:48,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1842378306, now seen corresponding path program 1 times [2024-11-23 22:35:48,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:48,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279721394] [2024-11-23 22:35:48,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:48,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 22:35:48,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:48,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279721394] [2024-11-23 22:35:48,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279721394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:48,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:48,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:48,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909264022] [2024-11-23 22:35:48,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:48,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:48,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:48,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:48,860 INFO L87 Difference]: Start difference. First operand 15316 states and 21956 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:51,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:51,107 INFO L93 Difference]: Finished difference Result 58050 states and 82667 transitions. [2024-11-23 22:35:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:35:51,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 22:35:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:51,356 INFO L225 Difference]: With dead ends: 58050 [2024-11-23 22:35:51,356 INFO L226 Difference]: Without dead ends: 51168 [2024-11-23 22:35:51,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:35:51,382 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 8054 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8054 SdHoareTripleChecker+Valid, 3945 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:51,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8054 Valid, 3945 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:35:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51168 states. [2024-11-23 22:35:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51168 to 25652. [2024-11-23 22:35:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25652 states, 25650 states have (on average 1.4198830409356724) internal successors, (36420), 25651 states have internal predecessors, (36420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25652 states to 25652 states and 36420 transitions. [2024-11-23 22:35:53,600 INFO L78 Accepts]: Start accepts. Automaton has 25652 states and 36420 transitions. Word has length 92 [2024-11-23 22:35:53,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:53,601 INFO L471 AbstractCegarLoop]: Abstraction has 25652 states and 36420 transitions. [2024-11-23 22:35:53,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:53,601 INFO L276 IsEmpty]: Start isEmpty. Operand 25652 states and 36420 transitions. [2024-11-23 22:35:53,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:35:53,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:53,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:53,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:35:53,609 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:53,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1214326974, now seen corresponding path program 1 times [2024-11-23 22:35:53,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:53,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604338474] [2024-11-23 22:35:53,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:53,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 22:35:53,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:53,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604338474] [2024-11-23 22:35:53,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604338474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:53,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:53,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:53,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578690866] [2024-11-23 22:35:53,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:53,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:53,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:53,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:53,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:53,984 INFO L87 Difference]: Start difference. First operand 25652 states and 36420 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:55,840 INFO L93 Difference]: Finished difference Result 64930 states and 92363 transitions. [2024-11-23 22:35:55,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:35:55,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 22:35:55,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:55,991 INFO L225 Difference]: With dead ends: 64930 [2024-11-23 22:35:55,991 INFO L226 Difference]: Without dead ends: 58048 [2024-11-23 22:35:56,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:35:56,008 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 8093 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8093 SdHoareTripleChecker+Valid, 3910 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:56,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8093 Valid, 3910 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:35:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58048 states. [2024-11-23 22:35:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58048 to 32532. [2024-11-23 22:35:57,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32532 states, 32530 states have (on average 1.4176452505379649) internal successors, (46116), 32531 states have internal predecessors, (46116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32532 states to 32532 states and 46116 transitions. [2024-11-23 22:35:57,860 INFO L78 Accepts]: Start accepts. Automaton has 32532 states and 46116 transitions. Word has length 92 [2024-11-23 22:35:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:57,861 INFO L471 AbstractCegarLoop]: Abstraction has 32532 states and 46116 transitions. [2024-11-23 22:35:57,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 32532 states and 46116 transitions. [2024-11-23 22:35:57,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:35:57,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:57,867 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:57,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:35:57,867 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:57,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 865171522, now seen corresponding path program 1 times [2024-11-23 22:35:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596852168] [2024-11-23 22:35:57,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 22:35:58,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:58,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596852168] [2024-11-23 22:35:58,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596852168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:58,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:58,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:35:58,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059317928] [2024-11-23 22:35:58,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:58,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:35:58,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:58,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:35:58,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:35:58,165 INFO L87 Difference]: Start difference. First operand 32532 states and 46116 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:00,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:00,430 INFO L93 Difference]: Finished difference Result 71810 states and 102059 transitions. [2024-11-23 22:36:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:36:00,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 22:36:00,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:00,611 INFO L225 Difference]: With dead ends: 71810 [2024-11-23 22:36:00,611 INFO L226 Difference]: Without dead ends: 64928 [2024-11-23 22:36:00,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:36:00,634 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 8143 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8143 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:00,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8143 Valid, 3901 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64928 states. [2024-11-23 22:36:02,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64928 to 39412. [2024-11-23 22:36:02,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39412 states, 39410 states have (on average 1.4161887845724435) internal successors, (55812), 39411 states have internal predecessors, (55812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39412 states to 39412 states and 55812 transitions. [2024-11-23 22:36:02,389 INFO L78 Accepts]: Start accepts. Automaton has 39412 states and 55812 transitions. Word has length 92 [2024-11-23 22:36:02,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:02,389 INFO L471 AbstractCegarLoop]: Abstraction has 39412 states and 55812 transitions. [2024-11-23 22:36:02,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 39412 states and 55812 transitions. [2024-11-23 22:36:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:36:02,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:02,396 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:02,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:36:02,397 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:02,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:02,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1648862910, now seen corresponding path program 1 times [2024-11-23 22:36:02,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:02,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510433805] [2024-11-23 22:36:02,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 22:36:02,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:02,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510433805] [2024-11-23 22:36:02,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510433805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:02,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:02,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:36:02,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651343492] [2024-11-23 22:36:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:02,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:36:02,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:02,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:36:02,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:02,869 INFO L87 Difference]: Start difference. First operand 39412 states and 55812 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:05,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:05,615 INFO L93 Difference]: Finished difference Result 78690 states and 111755 transitions. [2024-11-23 22:36:05,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:36:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 22:36:05,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:05,748 INFO L225 Difference]: With dead ends: 78690 [2024-11-23 22:36:05,749 INFO L226 Difference]: Without dead ends: 71808 [2024-11-23 22:36:05,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:36:05,779 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 8057 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8057 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:05,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8057 Valid, 3991 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:05,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71808 states. [2024-11-23 22:36:07,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71808 to 46292. [2024-11-23 22:36:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46292 states, 46290 states have (on average 1.4151652624756967) internal successors, (65508), 46291 states have internal predecessors, (65508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46292 states to 46292 states and 65508 transitions. [2024-11-23 22:36:07,903 INFO L78 Accepts]: Start accepts. Automaton has 46292 states and 65508 transitions. Word has length 92 [2024-11-23 22:36:07,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:07,904 INFO L471 AbstractCegarLoop]: Abstraction has 46292 states and 65508 transitions. [2024-11-23 22:36:07,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand 46292 states and 65508 transitions. [2024-11-23 22:36:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:36:07,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:07,908 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:07,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 22:36:07,908 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:07,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1415607362, now seen corresponding path program 1 times [2024-11-23 22:36:07,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:07,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106652441] [2024-11-23 22:36:07,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:07,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 22:36:08,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:08,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106652441] [2024-11-23 22:36:08,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106652441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:08,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:08,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:36:08,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076265200] [2024-11-23 22:36:08,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:08,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:36:08,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:08,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:36:08,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:08,209 INFO L87 Difference]: Start difference. First operand 46292 states and 65508 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:11,592 INFO L93 Difference]: Finished difference Result 81538 states and 115819 transitions. [2024-11-23 22:36:11,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:36:11,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 22:36:11,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:11,706 INFO L225 Difference]: With dead ends: 81538 [2024-11-23 22:36:11,707 INFO L226 Difference]: Without dead ends: 76672 [2024-11-23 22:36:11,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:36:11,725 INFO L435 NwaCegarLoop]: 1631 mSDtfsCounter, 8033 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:11,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 4179 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76672 states. [2024-11-23 22:36:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76672 to 51156. [2024-11-23 22:36:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51156 states, 51154 states have (on average 1.415725065488525) internal successors, (72420), 51155 states have internal predecessors, (72420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:13,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51156 states to 51156 states and 72420 transitions. [2024-11-23 22:36:13,972 INFO L78 Accepts]: Start accepts. Automaton has 51156 states and 72420 transitions. Word has length 92 [2024-11-23 22:36:13,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:13,972 INFO L471 AbstractCegarLoop]: Abstraction has 51156 states and 72420 transitions. [2024-11-23 22:36:13,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 51156 states and 72420 transitions. [2024-11-23 22:36:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 22:36:13,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:13,979 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:13,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:36:13,980 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:13,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash -821532615, now seen corresponding path program 1 times [2024-11-23 22:36:13,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:13,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661710907] [2024-11-23 22:36:13,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:13,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:14,136 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:14,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:14,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661710907] [2024-11-23 22:36:14,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661710907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:14,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:14,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:14,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508821148] [2024-11-23 22:36:14,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:14,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:14,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:14,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:14,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:14,138 INFO L87 Difference]: Start difference. First operand 51156 states and 72420 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:16,368 INFO L93 Difference]: Finished difference Result 100760 states and 142374 transitions. [2024-11-23 22:36:16,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:16,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 22:36:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:16,422 INFO L225 Difference]: With dead ends: 100760 [2024-11-23 22:36:16,422 INFO L226 Difference]: Without dead ends: 51158 [2024-11-23 22:36:16,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:16,444 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:16,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51158 states. [2024-11-23 22:36:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51158 to 51156. [2024-11-23 22:36:18,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51156 states, 51154 states have (on average 1.40227548187825) internal successors, (71732), 51155 states have internal predecessors, (71732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:18,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51156 states to 51156 states and 71732 transitions. [2024-11-23 22:36:18,341 INFO L78 Accepts]: Start accepts. Automaton has 51156 states and 71732 transitions. Word has length 93 [2024-11-23 22:36:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:18,342 INFO L471 AbstractCegarLoop]: Abstraction has 51156 states and 71732 transitions. [2024-11-23 22:36:18,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 51156 states and 71732 transitions. [2024-11-23 22:36:18,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 22:36:18,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:18,345 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:18,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:36:18,346 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:18,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:18,346 INFO L85 PathProgramCache]: Analyzing trace with hash -513089126, now seen corresponding path program 1 times [2024-11-23 22:36:18,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:18,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742782876] [2024-11-23 22:36:18,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:18,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:18,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742782876] [2024-11-23 22:36:18,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742782876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:18,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:18,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478638700] [2024-11-23 22:36:18,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:18,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:18,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:18,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:18,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:18,547 INFO L87 Difference]: Start difference. First operand 51156 states and 71732 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:19,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:19,849 INFO L93 Difference]: Finished difference Result 69422 states and 97437 transitions. [2024-11-23 22:36:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 22:36:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:19,870 INFO L225 Difference]: With dead ends: 69422 [2024-11-23 22:36:19,870 INFO L226 Difference]: Without dead ends: 19820 [2024-11-23 22:36:19,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:19,888 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 47 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:19,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19820 states. [2024-11-23 22:36:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19820 to 19811. [2024-11-23 22:36:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19811 states, 19809 states have (on average 1.4096117926195164) internal successors, (27923), 19810 states have internal predecessors, (27923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19811 states to 19811 states and 27923 transitions. [2024-11-23 22:36:20,409 INFO L78 Accepts]: Start accepts. Automaton has 19811 states and 27923 transitions. Word has length 94 [2024-11-23 22:36:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:20,410 INFO L471 AbstractCegarLoop]: Abstraction has 19811 states and 27923 transitions. [2024-11-23 22:36:20,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:20,410 INFO L276 IsEmpty]: Start isEmpty. Operand 19811 states and 27923 transitions. [2024-11-23 22:36:20,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 22:36:20,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:20,412 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:20,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:36:20,412 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:20,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:20,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1679011147, now seen corresponding path program 1 times [2024-11-23 22:36:20,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:20,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536747850] [2024-11-23 22:36:20,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:20,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:20,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:20,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536747850] [2024-11-23 22:36:20,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536747850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:20,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:20,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:20,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226329562] [2024-11-23 22:36:20,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:20,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:20,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:20,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:20,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:20,553 INFO L87 Difference]: Start difference. First operand 19811 states and 27923 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:21,186 INFO L93 Difference]: Finished difference Result 28935 states and 40645 transitions. [2024-11-23 22:36:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 22:36:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:21,203 INFO L225 Difference]: With dead ends: 28935 [2024-11-23 22:36:21,204 INFO L226 Difference]: Without dead ends: 10693 [2024-11-23 22:36:21,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:21,216 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 49 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:21,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2024-11-23 22:36:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 10691. [2024-11-23 22:36:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10691 states, 10689 states have (on average 1.4110768079333895) internal successors, (15083), 10690 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:21,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10691 states to 10691 states and 15083 transitions. [2024-11-23 22:36:21,638 INFO L78 Accepts]: Start accepts. Automaton has 10691 states and 15083 transitions. Word has length 95 [2024-11-23 22:36:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:21,639 INFO L471 AbstractCegarLoop]: Abstraction has 10691 states and 15083 transitions. [2024-11-23 22:36:21,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 10691 states and 15083 transitions. [2024-11-23 22:36:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 22:36:21,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:21,641 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:21,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 22:36:21,642 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:21,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1514363890, now seen corresponding path program 1 times [2024-11-23 22:36:21,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:21,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680197990] [2024-11-23 22:36:21,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:21,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:21,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680197990] [2024-11-23 22:36:21,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680197990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:21,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:21,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:36:21,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338692410] [2024-11-23 22:36:21,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:21,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:21,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:21,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:21,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:21,972 INFO L87 Difference]: Start difference. First operand 10691 states and 15083 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:27,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:27,149 INFO L93 Difference]: Finished difference Result 12946 states and 18478 transitions. [2024-11-23 22:36:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:36:27,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 22:36:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:27,164 INFO L225 Difference]: With dead ends: 12946 [2024-11-23 22:36:27,164 INFO L226 Difference]: Without dead ends: 11442 [2024-11-23 22:36:27,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:36:27,172 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 1824 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:27,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 1417 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-23 22:36:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11442 states. [2024-11-23 22:36:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11442 to 11442. [2024-11-23 22:36:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11442 states, 11440 states have (on average 1.3846153846153846) internal successors, (15840), 11441 states have internal predecessors, (15840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11442 states to 11442 states and 15840 transitions. [2024-11-23 22:36:27,627 INFO L78 Accepts]: Start accepts. Automaton has 11442 states and 15840 transitions. Word has length 95 [2024-11-23 22:36:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:27,627 INFO L471 AbstractCegarLoop]: Abstraction has 11442 states and 15840 transitions. [2024-11-23 22:36:27,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11442 states and 15840 transitions. [2024-11-23 22:36:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:36:27,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:27,629 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:27,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 22:36:27,629 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:27,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:27,630 INFO L85 PathProgramCache]: Analyzing trace with hash -105500451, now seen corresponding path program 1 times [2024-11-23 22:36:27,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:27,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134893910] [2024-11-23 22:36:27,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:27,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:27,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:27,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134893910] [2024-11-23 22:36:27,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134893910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:27,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:27,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545845029] [2024-11-23 22:36:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:27,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:27,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:27,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:27,768 INFO L87 Difference]: Start difference. First operand 11442 states and 15840 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:27,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:27,995 INFO L93 Difference]: Finished difference Result 16006 states and 22142 transitions. [2024-11-23 22:36:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:27,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-23 22:36:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:28,008 INFO L225 Difference]: With dead ends: 16006 [2024-11-23 22:36:28,009 INFO L226 Difference]: Without dead ends: 6884 [2024-11-23 22:36:28,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:28,017 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 46 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:28,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:28,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2024-11-23 22:36:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 6882. [2024-11-23 22:36:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6882 states, 6880 states have (on average 1.377906976744186) internal successors, (9480), 6881 states have internal predecessors, (9480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6882 states to 6882 states and 9480 transitions. [2024-11-23 22:36:28,269 INFO L78 Accepts]: Start accepts. Automaton has 6882 states and 9480 transitions. Word has length 97 [2024-11-23 22:36:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:28,270 INFO L471 AbstractCegarLoop]: Abstraction has 6882 states and 9480 transitions. [2024-11-23 22:36:28,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 6882 states and 9480 transitions. [2024-11-23 22:36:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 22:36:28,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:28,272 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:28,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 22:36:28,272 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:28,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:28,273 INFO L85 PathProgramCache]: Analyzing trace with hash 887952111, now seen corresponding path program 1 times [2024-11-23 22:36:28,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:28,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295093464] [2024-11-23 22:36:28,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:28,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:28,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:28,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295093464] [2024-11-23 22:36:28,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295093464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:28,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:28,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:28,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813022530] [2024-11-23 22:36:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:28,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:28,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:28,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:28,413 INFO L87 Difference]: Start difference. First operand 6882 states and 9480 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:28,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:28,547 INFO L93 Difference]: Finished difference Result 9166 states and 12602 transitions. [2024-11-23 22:36:28,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:28,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-23 22:36:28,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:28,557 INFO L225 Difference]: With dead ends: 9166 [2024-11-23 22:36:28,557 INFO L226 Difference]: Without dead ends: 4604 [2024-11-23 22:36:28,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:28,563 INFO L435 NwaCegarLoop]: 1584 mSDtfsCounter, 43 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:28,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:28,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-11-23 22:36:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4602. [2024-11-23 22:36:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.376086956521739) internal successors, (6330), 4601 states have internal predecessors, (6330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6330 transitions. [2024-11-23 22:36:28,717 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6330 transitions. Word has length 99 [2024-11-23 22:36:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:28,717 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6330 transitions. [2024-11-23 22:36:28,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6330 transitions. [2024-11-23 22:36:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 22:36:28,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:28,720 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:28,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 22:36:28,720 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:28,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1167946625, now seen corresponding path program 1 times [2024-11-23 22:36:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:28,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173391027] [2024-11-23 22:36:28,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:28,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:28,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173391027] [2024-11-23 22:36:28,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173391027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:28,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:28,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:28,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513994750] [2024-11-23 22:36:28,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:28,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:28,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:28,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:28,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:28,890 INFO L87 Difference]: Start difference. First operand 4602 states and 6330 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:28,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:28,978 INFO L93 Difference]: Finished difference Result 5746 states and 7877 transitions. [2024-11-23 22:36:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:28,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-23 22:36:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:28,986 INFO L225 Difference]: With dead ends: 5746 [2024-11-23 22:36:28,987 INFO L226 Difference]: Without dead ends: 3464 [2024-11-23 22:36:28,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:28,990 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 40 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:28,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:28,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2024-11-23 22:36:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3462. [2024-11-23 22:36:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3460 states have (on average 1.3786127167630058) internal successors, (4770), 3461 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:29,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4770 transitions. [2024-11-23 22:36:29,081 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4770 transitions. Word has length 101 [2024-11-23 22:36:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:29,081 INFO L471 AbstractCegarLoop]: Abstraction has 3462 states and 4770 transitions. [2024-11-23 22:36:29,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4770 transitions. [2024-11-23 22:36:29,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 22:36:29,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:29,084 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:29,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 22:36:29,084 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:29,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:29,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2022994579, now seen corresponding path program 1 times [2024-11-23 22:36:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:29,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485757422] [2024-11-23 22:36:29,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:30,590 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:30,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:30,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485757422] [2024-11-23 22:36:30,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485757422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:30,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050831233] [2024-11-23 22:36:30,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:30,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:30,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:30,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:30,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:36:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:30,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 22:36:30,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 22:36:31,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 22:36:32,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050831233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:32,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:32,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-23 22:36:32,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907878401] [2024-11-23 22:36:32,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:32,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 22:36:32,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:32,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 22:36:32,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:36:32,048 INFO L87 Difference]: Start difference. First operand 3462 states and 4770 transitions. Second operand has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:36,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:36,261 INFO L93 Difference]: Finished difference Result 9875 states and 13277 transitions. [2024-11-23 22:36:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-23 22:36:36,261 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 22:36:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:36,273 INFO L225 Difference]: With dead ends: 9875 [2024-11-23 22:36:36,273 INFO L226 Difference]: Without dead ends: 8733 [2024-11-23 22:36:36,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=839, Invalid=3321, Unknown=0, NotChecked=0, Total=4160 [2024-11-23 22:36:36,278 INFO L435 NwaCegarLoop]: 1522 mSDtfsCounter, 21694 mSDsluCounter, 5011 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21694 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:36,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21694 Valid, 6533 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:36:36,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2024-11-23 22:36:36,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 8439. [2024-11-23 22:36:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8439 states, 8437 states have (on average 1.3286713286713288) internal successors, (11210), 8438 states have internal predecessors, (11210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8439 states to 8439 states and 11210 transitions. [2024-11-23 22:36:36,503 INFO L78 Accepts]: Start accepts. Automaton has 8439 states and 11210 transitions. Word has length 103 [2024-11-23 22:36:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:36,503 INFO L471 AbstractCegarLoop]: Abstraction has 8439 states and 11210 transitions. [2024-11-23 22:36:36,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:36,504 INFO L276 IsEmpty]: Start isEmpty. Operand 8439 states and 11210 transitions. [2024-11-23 22:36:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 22:36:36,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:36,506 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:36,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:36,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-23 22:36:36,707 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:36,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash -479777408, now seen corresponding path program 1 times [2024-11-23 22:36:36,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:36,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621938601] [2024-11-23 22:36:36,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:36,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:38,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:38,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621938601] [2024-11-23 22:36:38,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621938601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:38,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174976229] [2024-11-23 22:36:38,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:38,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:38,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:38,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:38,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:36:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:38,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:36:38,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:39,049 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:41,095 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:41,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174976229] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:41,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:41,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-23 22:36:41,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430035453] [2024-11-23 22:36:41,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:41,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-23 22:36:41,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:41,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-23 22:36:41,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:36:41,099 INFO L87 Difference]: Start difference. First operand 8439 states and 11210 transitions. Second operand has 28 states, 28 states have (on average 9.0) internal successors, (252), 27 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:43,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:43,398 INFO L93 Difference]: Finished difference Result 23095 states and 30204 transitions. [2024-11-23 22:36:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 22:36:43,399 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.0) internal successors, (252), 27 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-23 22:36:43,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:43,414 INFO L225 Difference]: With dead ends: 23095 [2024-11-23 22:36:43,414 INFO L226 Difference]: Without dead ends: 17310 [2024-11-23 22:36:43,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=505, Invalid=1847, Unknown=0, NotChecked=0, Total=2352 [2024-11-23 22:36:43,421 INFO L435 NwaCegarLoop]: 1517 mSDtfsCounter, 19064 mSDsluCounter, 6522 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19064 SdHoareTripleChecker+Valid, 8039 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:43,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19064 Valid, 8039 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:36:43,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17310 states. [2024-11-23 22:36:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17310 to 17186. [2024-11-23 22:36:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17186 states, 17184 states have (on average 1.3057495344506518) internal successors, (22438), 17185 states have internal predecessors, (22438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17186 states to 17186 states and 22438 transitions. [2024-11-23 22:36:43,972 INFO L78 Accepts]: Start accepts. Automaton has 17186 states and 22438 transitions. Word has length 104 [2024-11-23 22:36:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:43,973 INFO L471 AbstractCegarLoop]: Abstraction has 17186 states and 22438 transitions. [2024-11-23 22:36:43,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.0) internal successors, (252), 27 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 17186 states and 22438 transitions. [2024-11-23 22:36:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 22:36:43,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:43,974 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:43,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:44,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-23 22:36:44,175 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:44,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:44,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1353120014, now seen corresponding path program 1 times [2024-11-23 22:36:44,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:44,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824537454] [2024-11-23 22:36:44,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:44,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:44,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824537454] [2024-11-23 22:36:44,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824537454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:44,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713091703] [2024-11-23 22:36:44,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:44,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:36:44,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:44,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:36:44,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989a8682-de80-421e-9c91-82bf5a15d97b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:36:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:45,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 22:36:45,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:47,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713091703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:36:51,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:36:51,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 16] total 35 [2024-11-23 22:36:51,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124647518] [2024-11-23 22:36:51,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:36:51,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-23 22:36:51,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:51,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-23 22:36:51,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2024-11-23 22:36:51,093 INFO L87 Difference]: Start difference. First operand 17186 states and 22438 transitions. Second operand has 35 states, 35 states have (on average 7.371428571428571) internal successors, (258), 35 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:56,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:56,655 INFO L93 Difference]: Finished difference Result 53972 states and 70188 transitions. [2024-11-23 22:36:56,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-23 22:36:56,655 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.371428571428571) internal successors, (258), 35 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-23 22:36:56,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:56,697 INFO L225 Difference]: With dead ends: 53972 [2024-11-23 22:36:56,697 INFO L226 Difference]: Without dead ends: 39546 [2024-11-23 22:36:56,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1410, Invalid=4290, Unknown=0, NotChecked=0, Total=5700 [2024-11-23 22:36:56,714 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 19618 mSDsluCounter, 12995 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19618 SdHoareTripleChecker+Valid, 14556 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:56,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19618 Valid, 14556 Invalid, 1547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 22:36:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39546 states.