./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d71af2f98c077390fd8e26a4651323aedf075614618ebe27bc0480b53a002253 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:17:52,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:17:52,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:17:52,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:17:52,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:17:52,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:17:52,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:17:52,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:17:52,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:17:52,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:17:52,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:17:52,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:17:52,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:17:52,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:17:52,226 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:17:52,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:17:52,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:17:52,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:17:52,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:17:52,227 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:17:52,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:52,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:52,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:52,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:52,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:17:52,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:52,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:52,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:17:52,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:17:52,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:17:52,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:17:52,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:17:52,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:17:52,230 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_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d71af2f98c077390fd8e26a4651323aedf075614618ebe27bc0480b53a002253 [2024-11-28 03:17:52,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:17:52,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:17:52,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:17:52,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:17:52,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:17:52,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c [2024-11-28 03:17:55,507 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/data/e0e069be0/18f1c6b095024d21810fc31ee8c4fde9/FLAGd3950cb20 [2024-11-28 03:17:56,175 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:17:56,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c [2024-11-28 03:17:56,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/data/e0e069be0/18f1c6b095024d21810fc31ee8c4fde9/FLAGd3950cb20 [2024-11-28 03:17:56,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/data/e0e069be0/18f1c6b095024d21810fc31ee8c4fde9 [2024-11-28 03:17:56,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:17:56,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:17:56,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:56,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:17:56,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:17:56,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:56" (1/1) ... [2024-11-28 03:17:56,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:56, skipping insertion in model container [2024-11-28 03:17:56,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:56" (1/1) ... [2024-11-28 03:17:56,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:17:57,038 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_25b7c682-bc8c-4555-8275-7588080f6f14/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c[15482,15495] [2024-11-28 03:17:57,070 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_25b7c682-bc8c-4555-8275-7588080f6f14/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c[16324,16337] [2024-11-28 03:17:57,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:57,928 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:17:57,975 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_25b7c682-bc8c-4555-8275-7588080f6f14/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c[15482,15495] [2024-11-28 03:17:57,980 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_25b7c682-bc8c-4555-8275-7588080f6f14/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c[16324,16337] [2024-11-28 03:17:58,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:58,560 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:17:58,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58 WrapperNode [2024-11-28 03:17:58,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:58,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:58,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:17:58,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:17:58,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:58,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,014 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-28 03:17:59,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:59,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:17:59,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:17:59,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:17:59,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,324 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:17:59,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:17:59,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:17:59,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:17:59,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:17:59,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (1/1) ... [2024-11-28 03:17:59,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:59,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:59,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:17:59,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:17:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:17:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:17:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:17:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:17:59,882 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:17:59,884 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:18:05,819 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-28 03:18:05,819 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:18:05,867 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:18:05,867 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 03:18:05,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:05 BoogieIcfgContainer [2024-11-28 03:18:05,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:18:05,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:18:05,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:18:05,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:18:05,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:56" (1/3) ... [2024-11-28 03:18:05,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fad1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:05, skipping insertion in model container [2024-11-28 03:18:05,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:58" (2/3) ... [2024-11-28 03:18:05,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fad1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:05, skipping insertion in model container [2024-11-28 03:18:05,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:05" (3/3) ... [2024-11-28 03:18:05,887 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c [2024-11-28 03:18:05,903 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:18:05,908 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label07.c that has 1 procedures, 915 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 03:18:06,025 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:18:06,045 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;@ff66f2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:18:06,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:18:06,055 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) [2024-11-28 03:18:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 03:18:06,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:06,062 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:06,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:06,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2045138885, now seen corresponding path program 1 times [2024-11-28 03:18:06,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566972612] [2024-11-28 03:18:06,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:06,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:06,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566972612] [2024-11-28 03:18:06,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566972612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:06,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:06,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:06,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883882964] [2024-11-28 03:18:06,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:06,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:06,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:06,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:06,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:06,425 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-28 03:18:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:11,141 INFO L93 Difference]: Finished difference Result 2539 states and 4886 transitions. [2024-11-28 03:18:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:11,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-28 03:18:11,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:11,164 INFO L225 Difference]: With dead ends: 2539 [2024-11-28 03:18:11,165 INFO L226 Difference]: Without dead ends: 1600 [2024-11-28 03:18:11,170 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 [2024-11-28 03:18:11,173 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 1058 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:11,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 325 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:18:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-28 03:18:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-11-28 03:18:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.8410513141426783) internal successors, (2942), 1599 states have internal predecessors, (2942), 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) [2024-11-28 03:18:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2942 transitions. [2024-11-28 03:18:11,324 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2942 transitions. Word has length 7 [2024-11-28 03:18:11,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:11,324 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2942 transitions. [2024-11-28 03:18:11,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-28 03:18:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2942 transitions. [2024-11-28 03:18:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 03:18:11,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:11,328 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] [2024-11-28 03:18:11,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:18:11,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:11,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:11,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1759666809, now seen corresponding path program 1 times [2024-11-28 03:18:11,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:11,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984485888] [2024-11-28 03:18:11,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:11,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:11,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:11,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984485888] [2024-11-28 03:18:11,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984485888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:11,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:11,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:11,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919591783] [2024-11-28 03:18:11,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:11,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:11,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:11,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:11,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:11,672 INFO L87 Difference]: Start difference. First operand 1600 states and 2942 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) [2024-11-28 03:18:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:11,784 INFO L93 Difference]: Finished difference Result 1653 states and 3024 transitions. [2024-11-28 03:18:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:11,786 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 [2024-11-28 03:18:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:11,794 INFO L225 Difference]: With dead ends: 1653 [2024-11-28 03:18:11,794 INFO L226 Difference]: Without dead ends: 1600 [2024-11-28 03:18:11,795 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 [2024-11-28 03:18:11,800 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-28 03:18:11,800 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] [2024-11-28 03:18:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-28 03:18:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-11-28 03:18:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.816020025031289) internal successors, (2902), 1599 states have internal predecessors, (2902), 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) [2024-11-28 03:18:11,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2902 transitions. [2024-11-28 03:18:11,863 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2902 transitions. Word has length 27 [2024-11-28 03:18:11,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:11,864 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2902 transitions. [2024-11-28 03:18:11,864 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) [2024-11-28 03:18:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2902 transitions. [2024-11-28 03:18:11,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:18:11,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:11,868 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] [2024-11-28 03:18:11,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:18:11,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:11,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:11,870 INFO L85 PathProgramCache]: Analyzing trace with hash -757922131, now seen corresponding path program 1 times [2024-11-28 03:18:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017229705] [2024-11-28 03:18:11,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:12,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017229705] [2024-11-28 03:18:12,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017229705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:12,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:12,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:12,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882947728] [2024-11-28 03:18:12,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:12,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:12,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:12,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:12,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:12,297 INFO L87 Difference]: Start difference. First operand 1600 states and 2902 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) [2024-11-28 03:18:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:12,726 INFO L93 Difference]: Finished difference Result 2188 states and 3838 transitions. [2024-11-28 03:18:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:18:12,727 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 [2024-11-28 03:18:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:12,737 INFO L225 Difference]: With dead ends: 2188 [2024-11-28 03:18:12,738 INFO L226 Difference]: Without dead ends: 2139 [2024-11-28 03:18:12,741 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 [2024-11-28 03:18:12,742 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 9700 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-28 03:18:12,742 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] [2024-11-28 03:18:12,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2024-11-28 03:18:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1647. [2024-11-28 03:18:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1645 states have (on average 1.809726443768997) internal successors, (2977), 1646 states have internal predecessors, (2977), 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) [2024-11-28 03:18:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2977 transitions. [2024-11-28 03:18:12,797 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2977 transitions. Word has length 66 [2024-11-28 03:18:12,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:12,798 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2977 transitions. [2024-11-28 03:18:12,798 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) [2024-11-28 03:18:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2977 transitions. [2024-11-28 03:18:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:18:12,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:12,804 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] [2024-11-28 03:18:12,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:18:12,804 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:12,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:12,805 INFO L85 PathProgramCache]: Analyzing trace with hash 365578237, now seen corresponding path program 1 times [2024-11-28 03:18:12,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:12,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583244624] [2024-11-28 03:18:12,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:12,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:13,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583244624] [2024-11-28 03:18:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583244624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:13,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:13,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:13,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863856927] [2024-11-28 03:18:13,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:13,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:13,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:13,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:13,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:13,020 INFO L87 Difference]: Start difference. First operand 1647 states and 2977 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) [2024-11-28 03:18:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:13,071 INFO L93 Difference]: Finished difference Result 1828 states and 3264 transitions. [2024-11-28 03:18:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:13,071 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 [2024-11-28 03:18:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:13,080 INFO L225 Difference]: With dead ends: 1828 [2024-11-28 03:18:13,080 INFO L226 Difference]: Without dead ends: 1732 [2024-11-28 03:18:13,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:13,083 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 [2024-11-28 03:18:13,085 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] [2024-11-28 03:18:13,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-28 03:18:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-11-28 03:18:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.7980324074074074) internal successors, (3107), 1729 states have internal predecessors, (3107), 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) [2024-11-28 03:18:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 3107 transitions. [2024-11-28 03:18:13,140 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 3107 transitions. Word has length 68 [2024-11-28 03:18:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:13,141 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 3107 transitions. [2024-11-28 03:18:13,141 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) [2024-11-28 03:18:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 3107 transitions. [2024-11-28 03:18:13,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:18:13,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:13,145 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] [2024-11-28 03:18:13,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:18:13,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:13,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:13,146 INFO L85 PathProgramCache]: Analyzing trace with hash 432071749, now seen corresponding path program 1 times [2024-11-28 03:18:13,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:13,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458885287] [2024-11-28 03:18:13,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:13,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:13,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:13,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458885287] [2024-11-28 03:18:13,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458885287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:13,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:13,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023398286] [2024-11-28 03:18:13,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:13,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:13,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:13,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:13,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:13,797 INFO L87 Difference]: Start difference. First operand 1730 states and 3107 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) [2024-11-28 03:18:14,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:14,158 INFO L93 Difference]: Finished difference Result 1911 states and 3391 transitions. [2024-11-28 03:18:14,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:14,159 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 [2024-11-28 03:18:14,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:14,166 INFO L225 Difference]: With dead ends: 1911 [2024-11-28 03:18:14,167 INFO L226 Difference]: Without dead ends: 1732 [2024-11-28 03:18:14,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:18:14,169 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 8992 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8992 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:14,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8992 Valid, 1928 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:14,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-28 03:18:14,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-11-28 03:18:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.796875) internal successors, (3105), 1729 states have internal predecessors, (3105), 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) [2024-11-28 03:18:14,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 3105 transitions. [2024-11-28 03:18:14,216 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 3105 transitions. Word has length 68 [2024-11-28 03:18:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:14,216 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 3105 transitions. [2024-11-28 03:18:14,216 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) [2024-11-28 03:18:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 3105 transitions. [2024-11-28 03:18:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:18:14,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:14,218 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] [2024-11-28 03:18:14,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:18:14,218 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:14,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:14,219 INFO L85 PathProgramCache]: Analyzing trace with hash 94599333, now seen corresponding path program 1 times [2024-11-28 03:18:14,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:14,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147559504] [2024-11-28 03:18:14,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:14,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:14,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:14,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147559504] [2024-11-28 03:18:14,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147559504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:14,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:14,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:14,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744536639] [2024-11-28 03:18:14,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:14,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:14,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:14,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:14,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:14,581 INFO L87 Difference]: Start difference. First operand 1730 states and 3105 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) [2024-11-28 03:18:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:14,644 INFO L93 Difference]: Finished difference Result 1738 states and 3114 transitions. [2024-11-28 03:18:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:14,645 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 [2024-11-28 03:18:14,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:14,656 INFO L225 Difference]: With dead ends: 1738 [2024-11-28 03:18:14,656 INFO L226 Difference]: Without dead ends: 1736 [2024-11-28 03:18:14,657 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 [2024-11-28 03:18:14,658 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 [2024-11-28 03:18:14,659 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] [2024-11-28 03:18:14,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-28 03:18:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-28 03:18:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1734 states have (on average 1.7935409457900808) internal successors, (3110), 1735 states have internal predecessors, (3110), 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) [2024-11-28 03:18:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 3110 transitions. [2024-11-28 03:18:14,709 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 3110 transitions. Word has length 69 [2024-11-28 03:18:14,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:14,710 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 3110 transitions. [2024-11-28 03:18:14,710 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) [2024-11-28 03:18:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 3110 transitions. [2024-11-28 03:18:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:14,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:14,712 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] [2024-11-28 03:18:14,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:18:14,712 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:14,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash -988941275, now seen corresponding path program 1 times [2024-11-28 03:18:14,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:14,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659018293] [2024-11-28 03:18:14,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:14,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:14,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659018293] [2024-11-28 03:18:14,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659018293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:14,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:14,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346505527] [2024-11-28 03:18:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:14,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:14,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:14,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:14,815 INFO L87 Difference]: Start difference. First operand 1736 states and 3110 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) [2024-11-28 03:18:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:14,864 INFO L93 Difference]: Finished difference Result 2090 states and 3654 transitions. [2024-11-28 03:18:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:14,864 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 [2024-11-28 03:18:14,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:14,872 INFO L225 Difference]: With dead ends: 2090 [2024-11-28 03:18:14,873 INFO L226 Difference]: Without dead ends: 1905 [2024-11-28 03:18:14,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:14,875 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 [2024-11-28 03:18:14,875 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] [2024-11-28 03:18:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-11-28 03:18:14,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1903. [2024-11-28 03:18:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1901 states have (on average 1.7690689110994213) internal successors, (3363), 1902 states have internal predecessors, (3363), 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) [2024-11-28 03:18:14,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 3363 transitions. [2024-11-28 03:18:14,928 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 3363 transitions. Word has length 70 [2024-11-28 03:18:14,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:14,929 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 3363 transitions. [2024-11-28 03:18:14,929 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) [2024-11-28 03:18:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 3363 transitions. [2024-11-28 03:18:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:14,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:14,930 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] [2024-11-28 03:18:14,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:18:14,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:14,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:14,931 INFO L85 PathProgramCache]: Analyzing trace with hash -725084891, now seen corresponding path program 1 times [2024-11-28 03:18:14,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:14,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690720991] [2024-11-28 03:18:14,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:15,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:15,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690720991] [2024-11-28 03:18:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690720991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:15,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:15,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:15,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742692735] [2024-11-28 03:18:15,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:15,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:15,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:15,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:15,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,040 INFO L87 Difference]: Start difference. First operand 1903 states and 3363 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) [2024-11-28 03:18:15,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:15,093 INFO L93 Difference]: Finished difference Result 2575 states and 4385 transitions. [2024-11-28 03:18:15,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:15,094 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 [2024-11-28 03:18:15,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:15,103 INFO L225 Difference]: With dead ends: 2575 [2024-11-28 03:18:15,104 INFO L226 Difference]: Without dead ends: 2223 [2024-11-28 03:18:15,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,106 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 [2024-11-28 03:18:15,106 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] [2024-11-28 03:18:15,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2024-11-28 03:18:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2221. [2024-11-28 03:18:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2219 states have (on average 1.7291572780531772) internal successors, (3837), 2220 states have internal predecessors, (3837), 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) [2024-11-28 03:18:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3837 transitions. [2024-11-28 03:18:15,173 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3837 transitions. Word has length 70 [2024-11-28 03:18:15,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:15,174 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 3837 transitions. [2024-11-28 03:18:15,175 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) [2024-11-28 03:18:15,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3837 transitions. [2024-11-28 03:18:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:15,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:15,177 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] [2024-11-28 03:18:15,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:18:15,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:15,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash 513177125, now seen corresponding path program 1 times [2024-11-28 03:18:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:15,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826916441] [2024-11-28 03:18:15,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:15,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:15,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826916441] [2024-11-28 03:18:15,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826916441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:15,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:15,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:15,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548067264] [2024-11-28 03:18:15,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:15,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:15,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:15,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:15,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,272 INFO L87 Difference]: Start difference. First operand 2221 states and 3837 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) [2024-11-28 03:18:15,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:15,331 INFO L93 Difference]: Finished difference Result 3497 states and 5751 transitions. [2024-11-28 03:18:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:15,332 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 [2024-11-28 03:18:15,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:15,343 INFO L225 Difference]: With dead ends: 3497 [2024-11-28 03:18:15,344 INFO L226 Difference]: Without dead ends: 2827 [2024-11-28 03:18:15,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,346 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 [2024-11-28 03:18:15,346 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] [2024-11-28 03:18:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-28 03:18:15,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2825. [2024-11-28 03:18:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2823 states have (on average 1.6723343960325894) internal successors, (4721), 2824 states have internal predecessors, (4721), 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) [2024-11-28 03:18:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4721 transitions. [2024-11-28 03:18:15,433 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4721 transitions. Word has length 70 [2024-11-28 03:18:15,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:15,433 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 4721 transitions. [2024-11-28 03:18:15,433 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) [2024-11-28 03:18:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4721 transitions. [2024-11-28 03:18:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:15,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:15,435 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] [2024-11-28 03:18:15,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:18:15,435 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:15,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1702291675, now seen corresponding path program 1 times [2024-11-28 03:18:15,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:15,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977710426] [2024-11-28 03:18:15,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:15,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:15,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:15,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977710426] [2024-11-28 03:18:15,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977710426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:15,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:15,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:15,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997317706] [2024-11-28 03:18:15,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:15,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:15,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:15,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,521 INFO L87 Difference]: Start difference. First operand 2825 states and 4721 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) [2024-11-28 03:18:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:15,651 INFO L93 Difference]: Finished difference Result 5245 states and 8291 transitions. [2024-11-28 03:18:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:15,652 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 [2024-11-28 03:18:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:15,668 INFO L225 Difference]: With dead ends: 5245 [2024-11-28 03:18:15,668 INFO L226 Difference]: Without dead ends: 3971 [2024-11-28 03:18:15,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,672 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 [2024-11-28 03:18:15,672 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] [2024-11-28 03:18:15,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3971 states. [2024-11-28 03:18:15,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3971 to 3969. [2024-11-28 03:18:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3969 states, 3967 states have (on average 1.603478699268969) internal successors, (6361), 3968 states have internal predecessors, (6361), 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) [2024-11-28 03:18:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3969 states to 3969 states and 6361 transitions. [2024-11-28 03:18:15,806 INFO L78 Accepts]: Start accepts. Automaton has 3969 states and 6361 transitions. Word has length 70 [2024-11-28 03:18:15,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:15,807 INFO L471 AbstractCegarLoop]: Abstraction has 3969 states and 6361 transitions. [2024-11-28 03:18:15,807 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) [2024-11-28 03:18:15,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3969 states and 6361 transitions. [2024-11-28 03:18:15,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:15,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:15,813 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] [2024-11-28 03:18:15,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:18:15,813 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:15,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash 78641189, now seen corresponding path program 1 times [2024-11-28 03:18:15,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:15,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093968860] [2024-11-28 03:18:15,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:15,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:15,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093968860] [2024-11-28 03:18:15,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093968860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:15,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:15,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221562600] [2024-11-28 03:18:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:15,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:15,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:15,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:15,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:15,897 INFO L87 Difference]: Start difference. First operand 3969 states and 6361 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) [2024-11-28 03:18:16,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:16,029 INFO L93 Difference]: Finished difference Result 8549 states and 12987 transitions. [2024-11-28 03:18:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:16,030 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 [2024-11-28 03:18:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:16,053 INFO L225 Difference]: With dead ends: 8549 [2024-11-28 03:18:16,054 INFO L226 Difference]: Without dead ends: 6131 [2024-11-28 03:18:16,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:16,058 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 [2024-11-28 03:18:16,059 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] [2024-11-28 03:18:16,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2024-11-28 03:18:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6129. [2024-11-28 03:18:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6127 states have (on average 1.5317447364126) internal successors, (9385), 6128 states have internal predecessors, (9385), 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) [2024-11-28 03:18:16,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9385 transitions. [2024-11-28 03:18:16,284 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9385 transitions. Word has length 70 [2024-11-28 03:18:16,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:16,284 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 9385 transitions. [2024-11-28 03:18:16,284 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) [2024-11-28 03:18:16,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9385 transitions. [2024-11-28 03:18:16,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:16,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:16,285 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] [2024-11-28 03:18:16,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:18:16,286 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:16,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:16,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1151855835, now seen corresponding path program 1 times [2024-11-28 03:18:16,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:16,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716540243] [2024-11-28 03:18:16,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:16,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:16,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:16,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716540243] [2024-11-28 03:18:16,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716540243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:16,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:16,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492497771] [2024-11-28 03:18:16,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:16,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:16,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:16,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:16,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:16,362 INFO L87 Difference]: Start difference. First operand 6129 states and 9385 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) [2024-11-28 03:18:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:16,517 INFO L93 Difference]: Finished difference Result 11000 states and 16431 transitions. [2024-11-28 03:18:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:16,518 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 [2024-11-28 03:18:16,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:16,538 INFO L225 Difference]: With dead ends: 11000 [2024-11-28 03:18:16,538 INFO L226 Difference]: Without dead ends: 8438 [2024-11-28 03:18:16,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:16,543 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 [2024-11-28 03:18:16,543 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] [2024-11-28 03:18:16,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2024-11-28 03:18:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 8436. [2024-11-28 03:18:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8436 states, 8434 states have (on average 1.496324401233104) internal successors, (12620), 8435 states have internal predecessors, (12620), 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) [2024-11-28 03:18:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8436 states to 8436 states and 12620 transitions. [2024-11-28 03:18:16,804 INFO L78 Accepts]: Start accepts. Automaton has 8436 states and 12620 transitions. Word has length 70 [2024-11-28 03:18:16,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:16,804 INFO L471 AbstractCegarLoop]: Abstraction has 8436 states and 12620 transitions. [2024-11-28 03:18:16,804 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) [2024-11-28 03:18:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8436 states and 12620 transitions. [2024-11-28 03:18:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:18:16,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:16,805 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:16,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:18:16,806 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:16,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash 644225218, now seen corresponding path program 1 times [2024-11-28 03:18:16,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:16,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325604722] [2024-11-28 03:18:16,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:16,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:17,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325604722] [2024-11-28 03:18:17,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325604722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:17,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:17,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452375438] [2024-11-28 03:18:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:17,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:17,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:17,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:17,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:17,184 INFO L87 Difference]: Start difference. First operand 8436 states and 12620 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-28 03:18:25,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:25,012 INFO L93 Difference]: Finished difference Result 12193 states and 19510 transitions. [2024-11-28 03:18:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:25,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-28 03:18:25,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:25,035 INFO L225 Difference]: With dead ends: 12193 [2024-11-28 03:18:25,035 INFO L226 Difference]: Without dead ends: 10689 [2024-11-28 03:18:25,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:25,040 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 2407 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4805 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 5943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 4805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:25,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2407 Valid, 838 Invalid, 5943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 4805 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-28 03:18:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2024-11-28 03:18:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 10689. [2024-11-28 03:18:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10689 states, 10687 states have (on average 1.4231309067090858) internal successors, (15209), 10688 states have internal predecessors, (15209), 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) [2024-11-28 03:18:25,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10689 states to 10689 states and 15209 transitions. [2024-11-28 03:18:25,341 INFO L78 Accepts]: Start accepts. Automaton has 10689 states and 15209 transitions. Word has length 76 [2024-11-28 03:18:25,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:25,342 INFO L471 AbstractCegarLoop]: Abstraction has 10689 states and 15209 transitions. [2024-11-28 03:18:25,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-28 03:18:25,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10689 states and 15209 transitions. [2024-11-28 03:18:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 03:18:25,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:25,344 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:18:25,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:18:25,344 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:25,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:25,345 INFO L85 PathProgramCache]: Analyzing trace with hash 670228637, now seen corresponding path program 1 times [2024-11-28 03:18:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687312280] [2024-11-28 03:18:25,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:25,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:25,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:25,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687312280] [2024-11-28 03:18:25,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687312280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:25,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:25,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:25,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420881785] [2024-11-28 03:18:25,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:25,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:25,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:25,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:25,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:25,455 INFO L87 Difference]: Start difference. First operand 10689 states and 15209 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-28 03:18:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:29,045 INFO L93 Difference]: Finished difference Result 15197 states and 22592 transitions. [2024-11-28 03:18:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:29,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-11-28 03:18:29,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:29,071 INFO L225 Difference]: With dead ends: 15197 [2024-11-28 03:18:29,071 INFO L226 Difference]: Without dead ends: 12191 [2024-11-28 03:18:29,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:29,077 INFO L435 NwaCegarLoop]: 1094 mSDtfsCounter, 784 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:29,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1226 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:18:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12191 states. [2024-11-28 03:18:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12191 to 12191. [2024-11-28 03:18:29,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12191 states, 12189 states have (on average 1.4428583148740668) internal successors, (17587), 12190 states have internal predecessors, (17587), 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) [2024-11-28 03:18:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12191 states to 12191 states and 17587 transitions. [2024-11-28 03:18:29,370 INFO L78 Accepts]: Start accepts. Automaton has 12191 states and 17587 transitions. Word has length 78 [2024-11-28 03:18:29,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:29,370 INFO L471 AbstractCegarLoop]: Abstraction has 12191 states and 17587 transitions. [2024-11-28 03:18:29,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-28 03:18:29,371 INFO L276 IsEmpty]: Start isEmpty. Operand 12191 states and 17587 transitions. [2024-11-28 03:18:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:29,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:29,375 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] [2024-11-28 03:18:29,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:18:29,376 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:29,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1578521922, now seen corresponding path program 1 times [2024-11-28 03:18:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:29,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557467631] [2024-11-28 03:18:29,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:18:29,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:29,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557467631] [2024-11-28 03:18:29,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557467631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:29,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:29,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:29,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859647418] [2024-11-28 03:18:29,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:29,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:29,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:29,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:29,651 INFO L87 Difference]: Start difference. First operand 12191 states and 17587 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) [2024-11-28 03:18:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:30,761 INFO L93 Difference]: Finished difference Result 54925 states and 78298 transitions. [2024-11-28 03:18:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:30,762 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 [2024-11-28 03:18:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:30,859 INFO L225 Difference]: With dead ends: 54925 [2024-11-28 03:18:30,859 INFO L226 Difference]: Without dead ends: 48043 [2024-11-28 03:18:30,878 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 [2024-11-28 03:18:30,878 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 [2024-11-28 03:18:30,879 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] [2024-11-28 03:18:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48043 states. [2024-11-28 03:18:31,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48043 to 19071. [2024-11-28 03:18:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19071 states, 19069 states have (on average 1.4307514814620588) internal successors, (27283), 19070 states have internal predecessors, (27283), 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) [2024-11-28 03:18:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19071 states to 19071 states and 27283 transitions. [2024-11-28 03:18:31,657 INFO L78 Accepts]: Start accepts. Automaton has 19071 states and 27283 transitions. Word has length 92 [2024-11-28 03:18:31,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:31,658 INFO L471 AbstractCegarLoop]: Abstraction has 19071 states and 27283 transitions. [2024-11-28 03:18:31,658 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) [2024-11-28 03:18:31,659 INFO L276 IsEmpty]: Start isEmpty. Operand 19071 states and 27283 transitions. [2024-11-28 03:18:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:31,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:31,663 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] [2024-11-28 03:18:31,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:18:31,663 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:31,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1842378306, now seen corresponding path program 1 times [2024-11-28 03:18:31,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:31,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102668932] [2024-11-28 03:18:31,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:31,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 03:18:31,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:31,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102668932] [2024-11-28 03:18:31,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102668932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:31,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:31,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:31,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615586115] [2024-11-28 03:18:31,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:31,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:31,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:31,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:31,946 INFO L87 Difference]: Start difference. First operand 19071 states and 27283 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) [2024-11-28 03:18:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:33,368 INFO L93 Difference]: Finished difference Result 61805 states and 87994 transitions. [2024-11-28 03:18:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:33,369 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 [2024-11-28 03:18:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:33,447 INFO L225 Difference]: With dead ends: 61805 [2024-11-28 03:18:33,447 INFO L226 Difference]: Without dead ends: 54923 [2024-11-28 03:18:33,467 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 [2024-11-28 03:18:33,468 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 8056 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8056 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:33,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8056 Valid, 3922 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:33,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54923 states. [2024-11-28 03:18:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54923 to 29407. [2024-11-28 03:18:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29407 states, 29405 states have (on average 1.419724536643428) internal successors, (41747), 29406 states have internal predecessors, (41747), 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) [2024-11-28 03:18:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29407 states to 29407 states and 41747 transitions. [2024-11-28 03:18:34,538 INFO L78 Accepts]: Start accepts. Automaton has 29407 states and 41747 transitions. Word has length 92 [2024-11-28 03:18:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:34,539 INFO L471 AbstractCegarLoop]: Abstraction has 29407 states and 41747 transitions. [2024-11-28 03:18:34,539 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) [2024-11-28 03:18:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand 29407 states and 41747 transitions. [2024-11-28 03:18:34,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:34,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:34,544 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] [2024-11-28 03:18:34,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:18:34,544 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:34,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1214326974, now seen corresponding path program 1 times [2024-11-28 03:18:34,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:34,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486650296] [2024-11-28 03:18:34,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:34,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 03:18:34,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:34,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486650296] [2024-11-28 03:18:34,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486650296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:34,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:34,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249003143] [2024-11-28 03:18:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:34,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:34,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:34,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:34,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:34,854 INFO L87 Difference]: Start difference. First operand 29407 states and 41747 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) [2024-11-28 03:18:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:36,403 INFO L93 Difference]: Finished difference Result 68685 states and 97690 transitions. [2024-11-28 03:18:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:36,404 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 [2024-11-28 03:18:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:36,462 INFO L225 Difference]: With dead ends: 68685 [2024-11-28 03:18:36,462 INFO L226 Difference]: Without dead ends: 61803 [2024-11-28 03:18:36,473 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 [2024-11-28 03:18:36,474 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 8095 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8095 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:36,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8095 Valid, 3889 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:36,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61803 states. [2024-11-28 03:18:37,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61803 to 36287. [2024-11-28 03:18:37,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36287 states, 36285 states have (on average 1.4177483808736393) internal successors, (51443), 36286 states have internal predecessors, (51443), 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) [2024-11-28 03:18:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36287 states to 36287 states and 51443 transitions. [2024-11-28 03:18:37,791 INFO L78 Accepts]: Start accepts. Automaton has 36287 states and 51443 transitions. Word has length 92 [2024-11-28 03:18:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:37,791 INFO L471 AbstractCegarLoop]: Abstraction has 36287 states and 51443 transitions. [2024-11-28 03:18:37,792 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) [2024-11-28 03:18:37,792 INFO L276 IsEmpty]: Start isEmpty. Operand 36287 states and 51443 transitions. [2024-11-28 03:18:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:37,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:37,798 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] [2024-11-28 03:18:37,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:18:37,798 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:37,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:37,799 INFO L85 PathProgramCache]: Analyzing trace with hash 865171522, now seen corresponding path program 1 times [2024-11-28 03:18:37,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:37,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517381792] [2024-11-28 03:18:37,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:38,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:18:38,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:38,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517381792] [2024-11-28 03:18:38,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517381792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:38,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:38,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:38,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898217472] [2024-11-28 03:18:38,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:38,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:38,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:38,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:38,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:38,087 INFO L87 Difference]: Start difference. First operand 36287 states and 51443 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) [2024-11-28 03:18:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:40,018 INFO L93 Difference]: Finished difference Result 75565 states and 107386 transitions. [2024-11-28 03:18:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:40,019 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 [2024-11-28 03:18:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:40,077 INFO L225 Difference]: With dead ends: 75565 [2024-11-28 03:18:40,077 INFO L226 Difference]: Without dead ends: 68683 [2024-11-28 03:18:40,090 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 [2024-11-28 03:18:40,090 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 8141 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8141 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:40,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8141 Valid, 3920 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68683 states. [2024-11-28 03:18:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68683 to 43167. [2024-11-28 03:18:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43167 states, 43165 states have (on average 1.4164021776902582) internal successors, (61139), 43166 states have internal predecessors, (61139), 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) [2024-11-28 03:18:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43167 states to 43167 states and 61139 transitions. [2024-11-28 03:18:41,218 INFO L78 Accepts]: Start accepts. Automaton has 43167 states and 61139 transitions. Word has length 92 [2024-11-28 03:18:41,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:41,218 INFO L471 AbstractCegarLoop]: Abstraction has 43167 states and 61139 transitions. [2024-11-28 03:18:41,218 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) [2024-11-28 03:18:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 43167 states and 61139 transitions. [2024-11-28 03:18:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:41,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:41,223 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] [2024-11-28 03:18:41,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:18:41,223 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:41,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:41,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1648862910, now seen corresponding path program 1 times [2024-11-28 03:18:41,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:41,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339346584] [2024-11-28 03:18:41,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:41,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 03:18:41,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:41,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339346584] [2024-11-28 03:18:41,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339346584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:41,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:41,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:41,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539074619] [2024-11-28 03:18:41,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:41,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:41,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:41,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:41,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:41,428 INFO L87 Difference]: Start difference. First operand 43167 states and 61139 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) [2024-11-28 03:18:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:43,586 INFO L93 Difference]: Finished difference Result 82445 states and 117082 transitions. [2024-11-28 03:18:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:43,587 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 [2024-11-28 03:18:43,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:43,672 INFO L225 Difference]: With dead ends: 82445 [2024-11-28 03:18:43,672 INFO L226 Difference]: Without dead ends: 75563 [2024-11-28 03:18:43,687 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 [2024-11-28 03:18:43,687 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:43,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8057 Valid, 3991 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75563 states. [2024-11-28 03:18:45,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75563 to 50047. [2024-11-28 03:18:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50047 states, 50045 states have (on average 1.4154261164951543) internal successors, (70835), 50046 states have internal predecessors, (70835), 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) [2024-11-28 03:18:45,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50047 states to 50047 states and 70835 transitions. [2024-11-28 03:18:45,427 INFO L78 Accepts]: Start accepts. Automaton has 50047 states and 70835 transitions. Word has length 92 [2024-11-28 03:18:45,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:45,428 INFO L471 AbstractCegarLoop]: Abstraction has 50047 states and 70835 transitions. [2024-11-28 03:18:45,428 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) [2024-11-28 03:18:45,428 INFO L276 IsEmpty]: Start isEmpty. Operand 50047 states and 70835 transitions. [2024-11-28 03:18:45,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:45,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:45,432 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] [2024-11-28 03:18:45,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:18:45,432 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:45,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:45,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1415607362, now seen corresponding path program 1 times [2024-11-28 03:18:45,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:45,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760988933] [2024-11-28 03:18:45,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:45,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:18:45,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760988933] [2024-11-28 03:18:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760988933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:45,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:18:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529432614] [2024-11-28 03:18:45,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:45,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:45,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:45,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:45,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:45,664 INFO L87 Difference]: Start difference. First operand 50047 states and 70835 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) [2024-11-28 03:18:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:47,773 INFO L93 Difference]: Finished difference Result 85293 states and 121146 transitions. [2024-11-28 03:18:47,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:47,774 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 [2024-11-28 03:18:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:47,859 INFO L225 Difference]: With dead ends: 85293 [2024-11-28 03:18:47,860 INFO L226 Difference]: Without dead ends: 80427 [2024-11-28 03:18:47,873 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 [2024-11-28 03:18:47,874 INFO L435 NwaCegarLoop]: 1631 mSDtfsCounter, 8035 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8035 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:47,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8035 Valid, 4162 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:47,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80427 states. [2024-11-28 03:18:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80427 to 54911. [2024-11-28 03:18:49,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54911 states, 54909 states have (on average 1.4159245296763736) internal successors, (77747), 54910 states have internal predecessors, (77747), 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) [2024-11-28 03:18:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54911 states to 54911 states and 77747 transitions. [2024-11-28 03:18:49,956 INFO L78 Accepts]: Start accepts. Automaton has 54911 states and 77747 transitions. Word has length 92 [2024-11-28 03:18:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:49,957 INFO L471 AbstractCegarLoop]: Abstraction has 54911 states and 77747 transitions. [2024-11-28 03:18:49,957 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) [2024-11-28 03:18:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 54911 states and 77747 transitions. [2024-11-28 03:18:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:18:49,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:49,961 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] [2024-11-28 03:18:49,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:18:49,962 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:49,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash -821532615, now seen corresponding path program 1 times [2024-11-28 03:18:49,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:49,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830640903] [2024-11-28 03:18:49,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:49,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:50,082 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:50,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:50,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830640903] [2024-11-28 03:18:50,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830640903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:50,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:50,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:50,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019111331] [2024-11-28 03:18:50,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:50,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:50,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:50,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:50,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:50,084 INFO L87 Difference]: Start difference. First operand 54911 states and 77747 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) [2024-11-28 03:18:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:51,465 INFO L93 Difference]: Finished difference Result 104515 states and 147701 transitions. [2024-11-28 03:18:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:51,465 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 [2024-11-28 03:18:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:51,512 INFO L225 Difference]: With dead ends: 104515 [2024-11-28 03:18:51,512 INFO L226 Difference]: Without dead ends: 54913 [2024-11-28 03:18:51,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:51,540 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 [2024-11-28 03:18:51,541 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] [2024-11-28 03:18:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54913 states. [2024-11-28 03:18:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54913 to 54911. [2024-11-28 03:18:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54911 states, 54909 states have (on average 1.4033947076071318) internal successors, (77059), 54910 states have internal predecessors, (77059), 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) [2024-11-28 03:18:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54911 states to 54911 states and 77059 transitions. [2024-11-28 03:18:53,570 INFO L78 Accepts]: Start accepts. Automaton has 54911 states and 77059 transitions. Word has length 93 [2024-11-28 03:18:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:53,570 INFO L471 AbstractCegarLoop]: Abstraction has 54911 states and 77059 transitions. [2024-11-28 03:18:53,570 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) [2024-11-28 03:18:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 54911 states and 77059 transitions. [2024-11-28 03:18:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:18:53,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:53,574 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] [2024-11-28 03:18:53,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:18:53,574 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:53,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash -513089126, now seen corresponding path program 1 times [2024-11-28 03:18:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:53,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526584443] [2024-11-28 03:18:53,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:53,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:53,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:53,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:53,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526584443] [2024-11-28 03:18:53,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526584443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:53,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:53,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:53,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943531618] [2024-11-28 03:18:53,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:53,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:53,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:53,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:53,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:53,726 INFO L87 Difference]: Start difference. First operand 54911 states and 77059 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) [2024-11-28 03:18:54,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:54,716 INFO L93 Difference]: Finished difference Result 73177 states and 102764 transitions. [2024-11-28 03:18:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:54,717 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 [2024-11-28 03:18:54,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:54,737 INFO L225 Difference]: With dead ends: 73177 [2024-11-28 03:18:54,737 INFO L226 Difference]: Without dead ends: 23575 [2024-11-28 03:18:54,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:54,759 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 [2024-11-28 03:18:54,759 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] [2024-11-28 03:18:54,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23575 states. [2024-11-28 03:18:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23575 to 23566. [2024-11-28 03:18:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23566 states, 23564 states have (on average 1.4110507553895772) internal successors, (33250), 23565 states have internal predecessors, (33250), 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) [2024-11-28 03:18:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23566 states to 23566 states and 33250 transitions. [2024-11-28 03:18:55,398 INFO L78 Accepts]: Start accepts. Automaton has 23566 states and 33250 transitions. Word has length 94 [2024-11-28 03:18:55,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:55,398 INFO L471 AbstractCegarLoop]: Abstraction has 23566 states and 33250 transitions. [2024-11-28 03:18:55,399 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) [2024-11-28 03:18:55,399 INFO L276 IsEmpty]: Start isEmpty. Operand 23566 states and 33250 transitions. [2024-11-28 03:18:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:18:55,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:55,401 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] [2024-11-28 03:18:55,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:18:55,401 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:55,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1679011147, now seen corresponding path program 1 times [2024-11-28 03:18:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:55,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867086839] [2024-11-28 03:18:55,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:55,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:55,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867086839] [2024-11-28 03:18:55,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867086839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:55,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:55,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941240219] [2024-11-28 03:18:55,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:55,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:55,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:55,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:55,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:55,506 INFO L87 Difference]: Start difference. First operand 23566 states and 33250 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) [2024-11-28 03:18:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:55,824 INFO L93 Difference]: Finished difference Result 32690 states and 45972 transitions. [2024-11-28 03:18:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:55,825 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 [2024-11-28 03:18:55,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:55,836 INFO L225 Difference]: With dead ends: 32690 [2024-11-28 03:18:55,836 INFO L226 Difference]: Without dead ends: 14448 [2024-11-28 03:18:55,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:55,844 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 [2024-11-28 03:18:55,845 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] [2024-11-28 03:18:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14448 states. [2024-11-28 03:18:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14448 to 14446. [2024-11-28 03:18:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14446 states, 14444 states have (on average 1.4130434782608696) internal successors, (20410), 14445 states have internal predecessors, (20410), 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) [2024-11-28 03:18:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 20410 transitions. [2024-11-28 03:18:56,100 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 20410 transitions. Word has length 95 [2024-11-28 03:18:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:56,100 INFO L471 AbstractCegarLoop]: Abstraction has 14446 states and 20410 transitions. [2024-11-28 03:18:56,101 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) [2024-11-28 03:18:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 20410 transitions. [2024-11-28 03:18:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 03:18:56,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:56,102 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] [2024-11-28 03:18:56,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:18:56,103 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:56,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -105500451, now seen corresponding path program 1 times [2024-11-28 03:18:56,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:56,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736528459] [2024-11-28 03:18:56,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:56,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:56,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:56,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736528459] [2024-11-28 03:18:56,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736528459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:56,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:56,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:56,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139356077] [2024-11-28 03:18:56,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:56,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:56,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:56,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:56,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:56,207 INFO L87 Difference]: Start difference. First operand 14446 states and 20410 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) [2024-11-28 03:18:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:56,480 INFO L93 Difference]: Finished difference Result 19010 states and 26712 transitions. [2024-11-28 03:18:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:56,480 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 [2024-11-28 03:18:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:56,491 INFO L225 Difference]: With dead ends: 19010 [2024-11-28 03:18:56,492 INFO L226 Difference]: Without dead ends: 9888 [2024-11-28 03:18:56,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:56,497 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 [2024-11-28 03:18:56,498 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] [2024-11-28 03:18:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9888 states. [2024-11-28 03:18:56,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9888 to 9886. [2024-11-28 03:18:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 9884 states have (on average 1.4214892755969244) internal successors, (14050), 9885 states have internal predecessors, (14050), 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) [2024-11-28 03:18:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 14050 transitions. [2024-11-28 03:18:56,718 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 14050 transitions. Word has length 97 [2024-11-28 03:18:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:56,719 INFO L471 AbstractCegarLoop]: Abstraction has 9886 states and 14050 transitions. [2024-11-28 03:18:56,719 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) [2024-11-28 03:18:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 14050 transitions. [2024-11-28 03:18:56,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 03:18:56,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:56,720 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] [2024-11-28 03:18:56,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:18:56,720 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:56,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash 887952111, now seen corresponding path program 1 times [2024-11-28 03:18:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930924274] [2024-11-28 03:18:56,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:56,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:56,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930924274] [2024-11-28 03:18:56,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930924274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:56,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:56,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:56,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042361940] [2024-11-28 03:18:56,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:56,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:56,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:56,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:56,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:56,832 INFO L87 Difference]: Start difference. First operand 9886 states and 14050 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) [2024-11-28 03:18:56,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:56,944 INFO L93 Difference]: Finished difference Result 12170 states and 17172 transitions. [2024-11-28 03:18:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:56,945 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 [2024-11-28 03:18:56,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:56,955 INFO L225 Difference]: With dead ends: 12170 [2024-11-28 03:18:56,955 INFO L226 Difference]: Without dead ends: 7608 [2024-11-28 03:18:56,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:56,960 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 [2024-11-28 03:18:56,960 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] [2024-11-28 03:18:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7608 states. [2024-11-28 03:18:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7608 to 7606. [2024-11-28 03:18:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7606 states, 7604 states have (on average 1.4334560757496055) internal successors, (10900), 7605 states have internal predecessors, (10900), 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) [2024-11-28 03:18:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7606 states to 7606 states and 10900 transitions. [2024-11-28 03:18:57,110 INFO L78 Accepts]: Start accepts. Automaton has 7606 states and 10900 transitions. Word has length 99 [2024-11-28 03:18:57,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:57,111 INFO L471 AbstractCegarLoop]: Abstraction has 7606 states and 10900 transitions. [2024-11-28 03:18:57,111 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) [2024-11-28 03:18:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7606 states and 10900 transitions. [2024-11-28 03:18:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 03:18:57,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:57,112 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] [2024-11-28 03:18:57,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:18:57,112 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:57,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:57,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1167946625, now seen corresponding path program 1 times [2024-11-28 03:18:57,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:57,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842288205] [2024-11-28 03:18:57,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:57,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:57,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842288205] [2024-11-28 03:18:57,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842288205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:57,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:57,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:57,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302132172] [2024-11-28 03:18:57,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:57,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:57,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:57,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:57,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:57,212 INFO L87 Difference]: Start difference. First operand 7606 states and 10900 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) [2024-11-28 03:18:57,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:57,289 INFO L93 Difference]: Finished difference Result 8750 states and 12447 transitions. [2024-11-28 03:18:57,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:57,289 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 [2024-11-28 03:18:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:57,297 INFO L225 Difference]: With dead ends: 8750 [2024-11-28 03:18:57,297 INFO L226 Difference]: Without dead ends: 6468 [2024-11-28 03:18:57,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:57,301 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 [2024-11-28 03:18:57,302 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] [2024-11-28 03:18:57,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6468 states. [2024-11-28 03:18:57,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6468 to 6466. [2024-11-28 03:18:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 1.4449257425742574) internal successors, (9340), 6465 states have internal predecessors, (9340), 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) [2024-11-28 03:18:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 9340 transitions. [2024-11-28 03:18:57,381 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 9340 transitions. Word has length 101 [2024-11-28 03:18:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:57,381 INFO L471 AbstractCegarLoop]: Abstraction has 6466 states and 9340 transitions. [2024-11-28 03:18:57,381 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) [2024-11-28 03:18:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 9340 transitions. [2024-11-28 03:18:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 03:18:57,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:57,382 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] [2024-11-28 03:18:57,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:18:57,383 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:57,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2022994579, now seen corresponding path program 1 times [2024-11-28 03:18:57,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:57,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878603040] [2024-11-28 03:18:57,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:57,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:58,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:58,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878603040] [2024-11-28 03:18:58,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878603040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:58,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691530615] [2024-11-28 03:18:58,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:58,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:58,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:58,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:58,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:18:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:58,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:18:58,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:18:59,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:59,630 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:18:59,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691530615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:18:59,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:18:59,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-28 03:18:59,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304804385] [2024-11-28 03:18:59,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:59,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:18:59,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:59,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:18:59,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:18:59,632 INFO L87 Difference]: Start difference. First operand 6466 states and 9340 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) [2024-11-28 03:19:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:03,616 INFO L93 Difference]: Finished difference Result 12879 states and 17847 transitions. [2024-11-28 03:19:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-28 03:19:03,618 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 [2024-11-28 03:19:03,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:03,633 INFO L225 Difference]: With dead ends: 12879 [2024-11-28 03:19:03,633 INFO L226 Difference]: Without dead ends: 11737 [2024-11-28 03:19:03,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=839, Invalid=3321, Unknown=0, NotChecked=0, Total=4160 [2024-11-28 03:19:03,640 INFO L435 NwaCegarLoop]: 1522 mSDtfsCounter, 20142 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20142 SdHoareTripleChecker+Valid, 6595 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:03,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20142 Valid, 6595 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:19:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11737 states. [2024-11-28 03:19:03,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11737 to 11443. [2024-11-28 03:19:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11443 states, 11441 states have (on average 1.3792500655537103) internal successors, (15780), 11442 states have internal predecessors, (15780), 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) [2024-11-28 03:19:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11443 states to 11443 states and 15780 transitions. [2024-11-28 03:19:03,875 INFO L78 Accepts]: Start accepts. Automaton has 11443 states and 15780 transitions. Word has length 103 [2024-11-28 03:19:03,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:03,876 INFO L471 AbstractCegarLoop]: Abstraction has 11443 states and 15780 transitions. [2024-11-28 03:19:03,876 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) [2024-11-28 03:19:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11443 states and 15780 transitions. [2024-11-28 03:19:03,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 03:19:03,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:03,878 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] [2024-11-28 03:19:03,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:04,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:04,082 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:04,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:04,082 INFO L85 PathProgramCache]: Analyzing trace with hash -479777408, now seen corresponding path program 1 times [2024-11-28 03:19:04,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:04,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336253995] [2024-11-28 03:19:04,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:04,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:05,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:05,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336253995] [2024-11-28 03:19:05,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336253995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:05,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469534514] [2024-11-28 03:19:05,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:05,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:05,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:05,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:05,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:19:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:05,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:19:05,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:06,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:07,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469534514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:07,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-28 03:19:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951796076] [2024-11-28 03:19:07,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:07,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 03:19:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:07,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 03:19:07,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:19:07,803 INFO L87 Difference]: Start difference. First operand 11443 states and 15780 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) [2024-11-28 03:19:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:09,732 INFO L93 Difference]: Finished difference Result 26099 states and 34774 transitions. [2024-11-28 03:19:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:19:09,733 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 [2024-11-28 03:19:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:09,750 INFO L225 Difference]: With dead ends: 26099 [2024-11-28 03:19:09,750 INFO L226 Difference]: Without dead ends: 20314 [2024-11-28 03:19:09,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=505, Invalid=1847, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:19:09,758 INFO L435 NwaCegarLoop]: 1517 mSDtfsCounter, 15605 mSDsluCounter, 6615 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15605 SdHoareTripleChecker+Valid, 8132 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:09,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15605 Valid, 8132 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:19:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20314 states. [2024-11-28 03:19:10,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20314 to 20190. [2024-11-28 03:19:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20190 states, 20188 states have (on average 1.337824450168417) internal successors, (27008), 20189 states have internal predecessors, (27008), 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) [2024-11-28 03:19:10,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20190 states to 20190 states and 27008 transitions. [2024-11-28 03:19:10,340 INFO L78 Accepts]: Start accepts. Automaton has 20190 states and 27008 transitions. Word has length 104 [2024-11-28 03:19:10,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:10,340 INFO L471 AbstractCegarLoop]: Abstraction has 20190 states and 27008 transitions. [2024-11-28 03:19:10,340 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) [2024-11-28 03:19:10,340 INFO L276 IsEmpty]: Start isEmpty. Operand 20190 states and 27008 transitions. [2024-11-28 03:19:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 03:19:10,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:10,341 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] [2024-11-28 03:19:10,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:19:10,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:10,542 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:10,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1353120014, now seen corresponding path program 1 times [2024-11-28 03:19:10,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:10,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891656985] [2024-11-28 03:19:10,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:10,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:10,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891656985] [2024-11-28 03:19:10,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891656985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503200943] [2024-11-28 03:19:10,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:10,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:10,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:10,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:10,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:19:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:11,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 03:19:11,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:12,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:15,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503200943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:15,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:15,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 16] total 35 [2024-11-28 03:19:15,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984957281] [2024-11-28 03:19:15,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:15,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 03:19:15,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:15,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 03:19:15,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:19:15,781 INFO L87 Difference]: Start difference. First operand 20190 states and 27008 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) [2024-11-28 03:19:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:20,151 INFO L93 Difference]: Finished difference Result 56976 states and 74758 transitions. [2024-11-28 03:19:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 03:19:20,151 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 [2024-11-28 03:19:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:20,193 INFO L225 Difference]: With dead ends: 56976 [2024-11-28 03:19:20,193 INFO L226 Difference]: Without dead ends: 42550 [2024-11-28 03:19:20,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1410, Invalid=4290, Unknown=0, NotChecked=0, Total=5700 [2024-11-28 03:19:20,205 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 13296 mSDsluCounter, 11797 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13296 SdHoareTripleChecker+Valid, 13358 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:20,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13296 Valid, 13358 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:19:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42550 states. [2024-11-28 03:19:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42550 to 31291. [2024-11-28 03:19:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31291 states, 31289 states have (on average 1.3087346990955289) internal successors, (40949), 31290 states have internal predecessors, (40949), 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) [2024-11-28 03:19:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31291 states to 31291 states and 40949 transitions. [2024-11-28 03:19:21,557 INFO L78 Accepts]: Start accepts. Automaton has 31291 states and 40949 transitions. Word has length 104 [2024-11-28 03:19:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:21,558 INFO L471 AbstractCegarLoop]: Abstraction has 31291 states and 40949 transitions. [2024-11-28 03:19:21,558 INFO L472 AbstractCegarLoop]: INTERPOLANT 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) [2024-11-28 03:19:21,558 INFO L276 IsEmpty]: Start isEmpty. Operand 31291 states and 40949 transitions. [2024-11-28 03:19:21,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 03:19:21,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:21,559 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, 1] [2024-11-28 03:19:21,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:19:21,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:19:21,760 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:21,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:21,760 INFO L85 PathProgramCache]: Analyzing trace with hash -72239707, now seen corresponding path program 1 times [2024-11-28 03:19:21,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:21,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885341194] [2024-11-28 03:19:21,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:21,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:22,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:22,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885341194] [2024-11-28 03:19:22,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885341194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:22,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28560570] [2024-11-28 03:19:22,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:22,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:22,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:22,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:22,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:19:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:22,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:19:22,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:22,988 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:23,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28560570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:23,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:23,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-28 03:19:23,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314173548] [2024-11-28 03:19:23,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:23,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:19:23,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:23,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:19:23,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:19:23,903 INFO L87 Difference]: Start difference. First operand 31291 states and 40949 transitions. Second operand has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 22 states have internal predecessors, (247), 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) [2024-11-28 03:19:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:26,510 INFO L93 Difference]: Finished difference Result 83525 states and 108051 transitions. [2024-11-28 03:19:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:19:26,511 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 22 states have internal predecessors, (247), 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 105 [2024-11-28 03:19:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:26,585 INFO L225 Difference]: With dead ends: 83525 [2024-11-28 03:19:26,585 INFO L226 Difference]: Without dead ends: 58498 [2024-11-28 03:19:26,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:19:26,606 INFO L435 NwaCegarLoop]: 1529 mSDtfsCounter, 12682 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12682 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:26,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12682 Valid, 6323 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:19:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58498 states. [2024-11-28 03:19:28,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58498 to 57820. [2024-11-28 03:19:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57820 states, 57818 states have (on average 1.2811927081531702) internal successors, (74076), 57819 states have internal predecessors, (74076), 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) [2024-11-28 03:19:28,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57820 states to 57820 states and 74076 transitions. [2024-11-28 03:19:28,986 INFO L78 Accepts]: Start accepts. Automaton has 57820 states and 74076 transitions. Word has length 105 [2024-11-28 03:19:28,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:28,987 INFO L471 AbstractCegarLoop]: Abstraction has 57820 states and 74076 transitions. [2024-11-28 03:19:28,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 22 states have internal predecessors, (247), 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) [2024-11-28 03:19:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 57820 states and 74076 transitions. [2024-11-28 03:19:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 03:19:28,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:28,988 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, 1] [2024-11-28 03:19:28,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:29,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:29,189 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:29,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:29,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1110372443, now seen corresponding path program 1 times [2024-11-28 03:19:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816939494] [2024-11-28 03:19:29,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:29,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:29,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816939494] [2024-11-28 03:19:29,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816939494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:29,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724449910] [2024-11-28 03:19:29,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:29,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:29,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:29,634 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:29,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:19:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:29,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:19:29,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:30,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:31,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724449910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:31,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:31,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-28 03:19:31,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999251438] [2024-11-28 03:19:31,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:31,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:19:31,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:31,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:19:31,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:19:31,511 INFO L87 Difference]: Start difference. First operand 57820 states and 74076 transitions. Second operand has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 20 states have internal predecessors, (248), 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) [2024-11-28 03:19:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:34,054 INFO L93 Difference]: Finished difference Result 105606 states and 134398 transitions. [2024-11-28 03:19:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:19:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 20 states have internal predecessors, (248), 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 105 [2024-11-28 03:19:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:34,122 INFO L225 Difference]: With dead ends: 105606 [2024-11-28 03:19:34,122 INFO L226 Difference]: Without dead ends: 59576 [2024-11-28 03:19:34,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:19:34,144 INFO L435 NwaCegarLoop]: 1529 mSDtfsCounter, 14070 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14070 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:34,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14070 Valid, 6359 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:19:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59576 states. [2024-11-28 03:19:36,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59576 to 55328. [2024-11-28 03:19:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55328 states, 55326 states have (on average 1.265896685102845) internal successors, (70037), 55327 states have internal predecessors, (70037), 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) [2024-11-28 03:19:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55328 states to 55328 states and 70037 transitions. [2024-11-28 03:19:36,451 INFO L78 Accepts]: Start accepts. Automaton has 55328 states and 70037 transitions. Word has length 105 [2024-11-28 03:19:36,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:36,451 INFO L471 AbstractCegarLoop]: Abstraction has 55328 states and 70037 transitions. [2024-11-28 03:19:36,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 20 states have internal predecessors, (248), 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) [2024-11-28 03:19:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 55328 states and 70037 transitions. [2024-11-28 03:19:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 03:19:36,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:36,454 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, 1, 1] [2024-11-28 03:19:36,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:19:36,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:36,658 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:36,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:36,658 INFO L85 PathProgramCache]: Analyzing trace with hash 449761474, now seen corresponding path program 1 times [2024-11-28 03:19:36,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:36,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253202847] [2024-11-28 03:19:36,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:37,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:37,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253202847] [2024-11-28 03:19:37,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253202847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:37,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72853768] [2024-11-28 03:19:37,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:37,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:37,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:37,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:37,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:19:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:37,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:19:37,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:37,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:39,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72853768] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:39,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:39,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 29 [2024-11-28 03:19:39,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206447675] [2024-11-28 03:19:39,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:39,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 03:19:39,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:39,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 03:19:39,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:19:39,598 INFO L87 Difference]: Start difference. First operand 55328 states and 70037 transitions. Second operand has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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) [2024-11-28 03:19:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:44,530 INFO L93 Difference]: Finished difference Result 150650 states and 189269 transitions. [2024-11-28 03:19:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:19:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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 106 [2024-11-28 03:19:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:44,731 INFO L225 Difference]: With dead ends: 150650 [2024-11-28 03:19:44,731 INFO L226 Difference]: Without dead ends: 106763 [2024-11-28 03:19:44,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=437, Invalid=1455, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 03:19:44,766 INFO L435 NwaCegarLoop]: 1541 mSDtfsCounter, 6465 mSDsluCounter, 6673 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 8214 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:44,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6465 Valid, 8214 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:19:44,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106763 states. [2024-11-28 03:19:49,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106763 to 105631. [2024-11-28 03:19:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105631 states, 105629 states have (on average 1.244232171089379) internal successors, (131427), 105630 states have internal predecessors, (131427), 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) [2024-11-28 03:19:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105631 states to 105631 states and 131427 transitions. [2024-11-28 03:19:49,241 INFO L78 Accepts]: Start accepts. Automaton has 105631 states and 131427 transitions. Word has length 106 [2024-11-28 03:19:49,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:49,241 INFO L471 AbstractCegarLoop]: Abstraction has 105631 states and 131427 transitions. [2024-11-28 03:19:49,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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) [2024-11-28 03:19:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 105631 states and 131427 transitions. [2024-11-28 03:19:49,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:19:49,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:49,243 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, 1, 1, 1] [2024-11-28 03:19:49,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:19:49,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:49,444 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:49,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:49,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1895182117, now seen corresponding path program 1 times [2024-11-28 03:19:49,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:49,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256131414] [2024-11-28 03:19:49,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:49,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:50,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256131414] [2024-11-28 03:19:50,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256131414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904123620] [2024-11-28 03:19:50,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:50,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:50,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:50,681 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:50,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:19:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:50,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:19:50,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:52,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904123620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:53,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:53,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-28 03:19:53,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297349682] [2024-11-28 03:19:53,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:53,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 03:19:53,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:53,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 03:19:53,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:19:53,607 INFO L87 Difference]: Start difference. First operand 105631 states and 131427 transitions. Second operand has 33 states, 33 states have (on average 9.242424242424242) internal successors, (305), 33 states have internal predecessors, (305), 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) [2024-11-28 03:20:01,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:01,470 INFO L93 Difference]: Finished difference Result 145268 states and 179940 transitions. [2024-11-28 03:20:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 03:20:01,471 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.242424242424242) internal successors, (305), 33 states have internal predecessors, (305), 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 107 [2024-11-28 03:20:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:01,565 INFO L225 Difference]: With dead ends: 145268 [2024-11-28 03:20:01,565 INFO L226 Difference]: Without dead ends: 104690 [2024-11-28 03:20:01,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1326, Invalid=4680, Unknown=0, NotChecked=0, Total=6006 [2024-11-28 03:20:01,586 INFO L435 NwaCegarLoop]: 1543 mSDtfsCounter, 11202 mSDsluCounter, 20098 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11202 SdHoareTripleChecker+Valid, 21641 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:01,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11202 Valid, 21641 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:20:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104690 states. [2024-11-28 03:20:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104690 to 90818. [2024-11-28 03:20:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90818 states, 90816 states have (on average 1.2415763742071881) internal successors, (112755), 90817 states have internal predecessors, (112755), 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) [2024-11-28 03:20:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90818 states to 90818 states and 112755 transitions. [2024-11-28 03:20:05,967 INFO L78 Accepts]: Start accepts. Automaton has 90818 states and 112755 transitions. Word has length 107 [2024-11-28 03:20:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:05,967 INFO L471 AbstractCegarLoop]: Abstraction has 90818 states and 112755 transitions. [2024-11-28 03:20:05,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.242424242424242) internal successors, (305), 33 states have internal predecessors, (305), 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) [2024-11-28 03:20:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 90818 states and 112755 transitions. [2024-11-28 03:20:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:20:05,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:05,969 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, 1, 1, 1] [2024-11-28 03:20:05,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:06,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:06,170 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:06,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash 580307637, now seen corresponding path program 1 times [2024-11-28 03:20:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349296907] [2024-11-28 03:20:06,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:06,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:06,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349296907] [2024-11-28 03:20:06,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349296907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:06,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512588789] [2024-11-28 03:20:06,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:06,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:06,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:06,610 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:06,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:20:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:06,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:20:06,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:07,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:08,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512588789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:08,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:08,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-28 03:20:08,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143578318] [2024-11-28 03:20:08,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:08,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:20:08,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:08,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:20:08,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:20:08,353 INFO L87 Difference]: Start difference. First operand 90818 states and 112755 transitions. Second operand has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 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) [2024-11-28 03:20:16,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:16,799 INFO L93 Difference]: Finished difference Result 256110 states and 317152 transitions. [2024-11-28 03:20:16,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:20:16,799 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 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 107 [2024-11-28 03:20:16,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:16,939 INFO L225 Difference]: With dead ends: 256110 [2024-11-28 03:20:16,939 INFO L226 Difference]: Without dead ends: 177816 [2024-11-28 03:20:16,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:20:16,969 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 13751 mSDsluCounter, 6660 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13751 SdHoareTripleChecker+Valid, 8211 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:16,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13751 Valid, 8211 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:20:17,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177816 states. [2024-11-28 03:20:24,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177816 to 176156. [2024-11-28 03:20:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176156 states, 176154 states have (on average 1.2261373570852776) internal successors, (215989), 176155 states have internal predecessors, (215989), 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) [2024-11-28 03:20:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176156 states to 176156 states and 215989 transitions. [2024-11-28 03:20:24,928 INFO L78 Accepts]: Start accepts. Automaton has 176156 states and 215989 transitions. Word has length 107 [2024-11-28 03:20:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:24,928 INFO L471 AbstractCegarLoop]: Abstraction has 176156 states and 215989 transitions. [2024-11-28 03:20:24,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 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) [2024-11-28 03:20:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 176156 states and 215989 transitions. [2024-11-28 03:20:24,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:20:24,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:24,932 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, 1, 1, 1, 1] [2024-11-28 03:20:24,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:20:25,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:25,133 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:25,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:25,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2054357102, now seen corresponding path program 1 times [2024-11-28 03:20:25,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:25,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314366735] [2024-11-28 03:20:25,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:25,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:31,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314366735] [2024-11-28 03:20:31,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314366735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:31,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364716894] [2024-11-28 03:20:31,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:31,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:31,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:31,592 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:31,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25b7c682-bc8c-4555-8275-7588080f6f14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:20:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:31,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-28 03:20:31,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:49,948 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:04,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364716894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:04,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:04,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 32, 37] total 103 [2024-11-28 03:21:04,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051867079] [2024-11-28 03:21:04,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:04,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-11-28 03:21:04,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:04,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-11-28 03:21:04,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=948, Invalid=9557, Unknown=1, NotChecked=0, Total=10506 [2024-11-28 03:21:04,216 INFO L87 Difference]: Start difference. First operand 176156 states and 215989 transitions. Second operand has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 103 states have internal predecessors, (310), 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) [2024-11-28 03:21:18,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]