./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.03.cil.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_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/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_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/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_5817dffe-94cc-4ad4-9edf-043472721adc/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 4edad7c083448b81b05575191757512095bfff0f094103ddb1a592d0cd702494 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:58:22,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:58:22,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:58:22,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:58:22,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:58:22,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:58:22,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:58:22,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:58:22,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:58:22,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:58:22,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:58:22,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:58:22,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:58:22,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:58:22,802 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:58:22,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:58:22,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:58:22,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:58:22,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:58:22,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:58:22,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:58:22,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:58:22,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:58:22,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:58:22,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:58:22,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:58:22,806 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:58:22,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:58:22,806 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:58:22,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:58:22,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:58:22,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:58:22,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:22,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:22,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:58:22,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:58:22,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:58:22,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:58:22,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:58:22,808 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_5817dffe-94cc-4ad4-9edf-043472721adc/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 -> 4edad7c083448b81b05575191757512095bfff0f094103ddb1a592d0cd702494 [2024-11-28 03:58:23,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:58:23,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:58:23,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:58:23,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:58:23,261 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:58:23,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/systemc/transmitter.03.cil.c [2024-11-28 03:58:26,471 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/data/99ea17482/592f56d354584e38b45f7c6bd1de0163/FLAG9dc1aed41 [2024-11-28 03:58:26,884 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:58:26,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/sv-benchmarks/c/systemc/transmitter.03.cil.c [2024-11-28 03:58:26,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/data/99ea17482/592f56d354584e38b45f7c6bd1de0163/FLAG9dc1aed41 [2024-11-28 03:58:26,929 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/data/99ea17482/592f56d354584e38b45f7c6bd1de0163 [2024-11-28 03:58:26,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:58:26,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:58:26,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:58:26,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:58:26,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:58:26,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:58:26" (1/1) ... [2024-11-28 03:58:26,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76529059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:26, skipping insertion in model container [2024-11-28 03:58:26,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:58:26" (1/1) ... [2024-11-28 03:58:26,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:58:27,197 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_5817dffe-94cc-4ad4-9edf-043472721adc/sv-benchmarks/c/systemc/transmitter.03.cil.c[706,719] [2024-11-28 03:58:27,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:58:27,311 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:58:27,324 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_5817dffe-94cc-4ad4-9edf-043472721adc/sv-benchmarks/c/systemc/transmitter.03.cil.c[706,719] [2024-11-28 03:58:27,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:58:27,380 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:58:27,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27 WrapperNode [2024-11-28 03:58:27,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:58:27,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:58:27,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:58:27,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:58:27,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,424 INFO L138 Inliner]: procedures = 34, calls = 39, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 321 [2024-11-28 03:58:27,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:58:27,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:58:27,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:58:27,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:58:27,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,439 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,454 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 03:58:27,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,465 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:58:27,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:58:27,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:58:27,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:58:27,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (1/1) ... [2024-11-28 03:58:27,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:27,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:27,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:58:27,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5817dffe-94cc-4ad4-9edf-043472721adc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:58:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:58:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 03:58:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 03:58:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 03:58:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 03:58:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 03:58:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 03:58:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 03:58:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 03:58:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 03:58:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 03:58:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:58:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 03:58:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 03:58:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:58:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:58:27,704 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:58:27,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:58:28,335 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-28 03:58:28,335 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:58:28,356 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:58:28,356 INFO L312 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-28 03:58:28,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:58:28 BoogieIcfgContainer [2024-11-28 03:58:28,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:58:28,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:58:28,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:58:28,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:58:28,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:58:26" (1/3) ... [2024-11-28 03:58:28,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785ad3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:58:28, skipping insertion in model container [2024-11-28 03:58:28,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:27" (2/3) ... [2024-11-28 03:58:28,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785ad3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:58:28, skipping insertion in model container [2024-11-28 03:58:28,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:58:28" (3/3) ... [2024-11-28 03:58:28,371 INFO L128 eAbstractionObserver]: Analyzing ICFG transmitter.03.cil.c [2024-11-28 03:58:28,391 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:58:28,393 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG transmitter.03.cil.c that has 7 procedures, 150 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-28 03:58:28,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:58:28,477 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;@138df3a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:58:28,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:58:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 127 states have (on average 1.5905511811023623) internal successors, (202), 128 states have internal predecessors, (202), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:58:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:28,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:28,495 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:28,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:28,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash 299202494, now seen corresponding path program 1 times [2024-11-28 03:58:28,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:28,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358519674] [2024-11-28 03:58:28,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:28,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:29,069 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 03:58:29,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:29,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358519674] [2024-11-28 03:58:29,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358519674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:29,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:29,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72683542] [2024-11-28 03:58:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:29,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:29,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:29,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:29,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:29,110 INFO L87 Difference]: Start difference. First operand has 150 states, 127 states have (on average 1.5905511811023623) internal successors, (202), 128 states have internal predecessors, (202), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:29,785 INFO L93 Difference]: Finished difference Result 436 states and 694 transitions. [2024-11-28 03:58:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:58:29,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:29,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:29,809 INFO L225 Difference]: With dead ends: 436 [2024-11-28 03:58:29,810 INFO L226 Difference]: Without dead ends: 289 [2024-11-28 03:58:29,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:29,822 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 367 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:29,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 580 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:58:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-28 03:58:29,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 278. [2024-11-28 03:58:29,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 237 states have (on average 1.4978902953586497) internal successors, (355), 239 states have internal predecessors, (355), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-28 03:58:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 410 transitions. [2024-11-28 03:58:29,924 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 410 transitions. Word has length 77 [2024-11-28 03:58:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:29,926 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 410 transitions. [2024-11-28 03:58:29,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 410 transitions. [2024-11-28 03:58:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:29,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:29,933 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:58:29,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:29,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:29,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1894259135, now seen corresponding path program 1 times [2024-11-28 03:58:29,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:29,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628914567] [2024-11-28 03:58:29,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:29,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:30,268 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 03:58:30,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:30,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628914567] [2024-11-28 03:58:30,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628914567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:30,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:30,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:30,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616411427] [2024-11-28 03:58:30,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:30,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:30,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:30,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:30,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:30,274 INFO L87 Difference]: Start difference. First operand 278 states and 410 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:31,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:31,220 INFO L93 Difference]: Finished difference Result 732 states and 1084 transitions. [2024-11-28 03:58:31,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:31,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:31,230 INFO L225 Difference]: With dead ends: 732 [2024-11-28 03:58:31,232 INFO L226 Difference]: Without dead ends: 465 [2024-11-28 03:58:31,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:58:31,239 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 386 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:31,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1011 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:58:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-28 03:58:31,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 402. [2024-11-28 03:58:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 343 states have (on average 1.4868804664723032) internal successors, (510), 346 states have internal predecessors, (510), 38 states have call successors, (38), 18 states have call predecessors, (38), 20 states have return successors, (42), 39 states have call predecessors, (42), 38 states have call successors, (42) [2024-11-28 03:58:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 590 transitions. [2024-11-28 03:58:31,302 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 590 transitions. Word has length 77 [2024-11-28 03:58:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:31,302 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 590 transitions. [2024-11-28 03:58:31,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 590 transitions. [2024-11-28 03:58:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:31,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:31,306 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:31,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:58:31,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:31,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1721435907, now seen corresponding path program 1 times [2024-11-28 03:58:31,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:31,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338521633] [2024-11-28 03:58:31,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:31,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:31,495 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 03:58:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338521633] [2024-11-28 03:58:31,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338521633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:31,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:31,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:31,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125329401] [2024-11-28 03:58:31,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:31,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:31,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:31,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:31,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:31,501 INFO L87 Difference]: Start difference. First operand 402 states and 590 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:31,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:31,855 INFO L93 Difference]: Finished difference Result 818 states and 1210 transitions. [2024-11-28 03:58:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:31,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:31,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:31,860 INFO L225 Difference]: With dead ends: 818 [2024-11-28 03:58:31,860 INFO L226 Difference]: Without dead ends: 427 [2024-11-28 03:58:31,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:31,863 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 266 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:31,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 379 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:58:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-28 03:58:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 402. [2024-11-28 03:58:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 343 states have (on average 1.478134110787172) internal successors, (507), 346 states have internal predecessors, (507), 38 states have call successors, (38), 18 states have call predecessors, (38), 20 states have return successors, (42), 39 states have call predecessors, (42), 38 states have call successors, (42) [2024-11-28 03:58:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 587 transitions. [2024-11-28 03:58:31,928 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 587 transitions. Word has length 77 [2024-11-28 03:58:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:31,929 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 587 transitions. [2024-11-28 03:58:31,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 587 transitions. [2024-11-28 03:58:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:31,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:31,931 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:31,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:58:31,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:31,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash 240138751, now seen corresponding path program 1 times [2024-11-28 03:58:31,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:31,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091271402] [2024-11-28 03:58:31,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:31,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:32,130 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 03:58:32,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:32,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091271402] [2024-11-28 03:58:32,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091271402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:32,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:32,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:32,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192056017] [2024-11-28 03:58:32,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:32,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:32,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:32,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:32,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:32,135 INFO L87 Difference]: Start difference. First operand 402 states and 587 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:33,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:33,055 INFO L93 Difference]: Finished difference Result 1144 states and 1673 transitions. [2024-11-28 03:58:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:33,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:33,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:33,066 INFO L225 Difference]: With dead ends: 1144 [2024-11-28 03:58:33,067 INFO L226 Difference]: Without dead ends: 753 [2024-11-28 03:58:33,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:58:33,071 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 396 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:33,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 960 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:58:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-28 03:58:33,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 650. [2024-11-28 03:58:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 555 states have (on average 1.4702702702702704) internal successors, (816), 562 states have internal predecessors, (816), 58 states have call successors, (58), 30 states have call predecessors, (58), 36 states have return successors, (74), 61 states have call predecessors, (74), 58 states have call successors, (74) [2024-11-28 03:58:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 948 transitions. [2024-11-28 03:58:33,183 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 948 transitions. Word has length 77 [2024-11-28 03:58:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:33,184 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 948 transitions. [2024-11-28 03:58:33,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 948 transitions. [2024-11-28 03:58:33,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:33,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:33,196 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:33,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:58:33,197 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:33,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:33,198 INFO L85 PathProgramCache]: Analyzing trace with hash 441962685, now seen corresponding path program 1 times [2024-11-28 03:58:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:33,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982523537] [2024-11-28 03:58:33,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:33,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:33,402 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 03:58:33,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:33,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982523537] [2024-11-28 03:58:33,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982523537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:33,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:33,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:33,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646016164] [2024-11-28 03:58:33,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:33,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:33,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:33,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:33,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:33,405 INFO L87 Difference]: Start difference. First operand 650 states and 948 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:34,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:34,259 INFO L93 Difference]: Finished difference Result 1914 states and 2804 transitions. [2024-11-28 03:58:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:34,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:34,268 INFO L225 Difference]: With dead ends: 1914 [2024-11-28 03:58:34,268 INFO L226 Difference]: Without dead ends: 1275 [2024-11-28 03:58:34,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:58:34,271 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 412 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:34,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 948 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:58:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2024-11-28 03:58:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1155. [2024-11-28 03:58:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 984 states have (on average 1.4634146341463414) internal successors, (1440), 1005 states have internal predecessors, (1440), 96 states have call successors, (96), 54 states have call predecessors, (96), 74 states have return successors, (160), 103 states have call predecessors, (160), 96 states have call successors, (160) [2024-11-28 03:58:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1696 transitions. [2024-11-28 03:58:34,420 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1696 transitions. Word has length 77 [2024-11-28 03:58:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:34,421 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1696 transitions. [2024-11-28 03:58:34,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1696 transitions. [2024-11-28 03:58:34,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:34,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:34,425 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:34,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:58:34,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:34,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1002662463, now seen corresponding path program 1 times [2024-11-28 03:58:34,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:34,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13099709] [2024-11-28 03:58:34,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:34,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:34,549 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 03:58:34,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:34,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13099709] [2024-11-28 03:58:34,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13099709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:34,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:34,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:34,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647648686] [2024-11-28 03:58:34,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:34,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:34,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:34,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:34,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:34,554 INFO L87 Difference]: Start difference. First operand 1155 states and 1696 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:34,916 INFO L93 Difference]: Finished difference Result 2357 states and 3488 transitions. [2024-11-28 03:58:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:34,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:34,928 INFO L225 Difference]: With dead ends: 2357 [2024-11-28 03:58:34,928 INFO L226 Difference]: Without dead ends: 1213 [2024-11-28 03:58:34,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:34,933 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 259 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:34,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 357 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-28 03:58:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1155. [2024-11-28 03:58:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 984 states have (on average 1.454268292682927) internal successors, (1431), 1005 states have internal predecessors, (1431), 96 states have call successors, (96), 54 states have call predecessors, (96), 74 states have return successors, (160), 103 states have call predecessors, (160), 96 states have call successors, (160) [2024-11-28 03:58:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1687 transitions. [2024-11-28 03:58:35,117 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1687 transitions. Word has length 77 [2024-11-28 03:58:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:35,118 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1687 transitions. [2024-11-28 03:58:35,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1687 transitions. [2024-11-28 03:58:35,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:35,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:35,126 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:35,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:58:35,127 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:35,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1436391549, now seen corresponding path program 1 times [2024-11-28 03:58:35,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:35,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527392739] [2024-11-28 03:58:35,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:35,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:35,251 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 03:58:35,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:35,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527392739] [2024-11-28 03:58:35,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527392739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:35,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:35,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:35,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877722470] [2024-11-28 03:58:35,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:35,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:35,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:35,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:35,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:35,254 INFO L87 Difference]: Start difference. First operand 1155 states and 1687 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:35,399 INFO L93 Difference]: Finished difference Result 2301 states and 3398 transitions. [2024-11-28 03:58:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:35,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:35,407 INFO L225 Difference]: With dead ends: 2301 [2024-11-28 03:58:35,407 INFO L226 Difference]: Without dead ends: 1158 [2024-11-28 03:58:35,410 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 03:58:35,411 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:35,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 830 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-28 03:58:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2024-11-28 03:58:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 987 states have (on average 1.4447821681864235) internal successors, (1426), 1008 states have internal predecessors, (1426), 96 states have call successors, (96), 54 states have call predecessors, (96), 74 states have return successors, (160), 103 states have call predecessors, (160), 96 states have call successors, (160) [2024-11-28 03:58:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1682 transitions. [2024-11-28 03:58:35,526 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1682 transitions. Word has length 77 [2024-11-28 03:58:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:35,527 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1682 transitions. [2024-11-28 03:58:35,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1682 transitions. [2024-11-28 03:58:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:35,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:35,529 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:35,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:58:35,529 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:35,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:35,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1420872831, now seen corresponding path program 1 times [2024-11-28 03:58:35,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:35,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990864084] [2024-11-28 03:58:35,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:35,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:35,602 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 03:58:35,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:35,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990864084] [2024-11-28 03:58:35,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990864084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:35,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:35,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:35,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656186257] [2024-11-28 03:58:35,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:35,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:35,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:35,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:35,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:35,604 INFO L87 Difference]: Start difference. First operand 1158 states and 1682 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:35,731 INFO L93 Difference]: Finished difference Result 2331 states and 3420 transitions. [2024-11-28 03:58:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:35,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:35,739 INFO L225 Difference]: With dead ends: 2331 [2024-11-28 03:58:35,739 INFO L226 Difference]: Without dead ends: 1185 [2024-11-28 03:58:35,743 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 03:58:35,743 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:35,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 830 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:35,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-11-28 03:58:35,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2024-11-28 03:58:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1014 states have (on average 1.4329388560157792) internal successors, (1453), 1035 states have internal predecessors, (1453), 96 states have call successors, (96), 54 states have call predecessors, (96), 74 states have return successors, (160), 103 states have call predecessors, (160), 96 states have call successors, (160) [2024-11-28 03:58:35,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1709 transitions. [2024-11-28 03:58:35,869 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1709 transitions. Word has length 77 [2024-11-28 03:58:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:35,870 INFO L471 AbstractCegarLoop]: Abstraction has 1185 states and 1709 transitions. [2024-11-28 03:58:35,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1709 transitions. [2024-11-28 03:58:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:35,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:35,873 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:35,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:58:35,873 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:35,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:35,874 INFO L85 PathProgramCache]: Analyzing trace with hash 523479553, now seen corresponding path program 1 times [2024-11-28 03:58:35,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:35,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992777508] [2024-11-28 03:58:35,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:35,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:35,960 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 03:58:35,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992777508] [2024-11-28 03:58:35,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992777508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:35,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:35,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850298242] [2024-11-28 03:58:35,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:35,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:35,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:35,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:35,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:35,964 INFO L87 Difference]: Start difference. First operand 1185 states and 1709 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:36,774 INFO L93 Difference]: Finished difference Result 5390 states and 7931 transitions. [2024-11-28 03:58:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:58:36,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:36,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:36,802 INFO L225 Difference]: With dead ends: 5390 [2024-11-28 03:58:36,802 INFO L226 Difference]: Without dead ends: 4217 [2024-11-28 03:58:36,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:36,809 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 920 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:36,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 892 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:58:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4217 states. [2024-11-28 03:58:37,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 4036. [2024-11-28 03:58:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3466 states have (on average 1.4333525678015002) internal successors, (4968), 3530 states have internal predecessors, (4968), 317 states have call successors, (317), 194 states have call predecessors, (317), 252 states have return successors, (546), 319 states have call predecessors, (546), 317 states have call successors, (546) [2024-11-28 03:58:37,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5831 transitions. [2024-11-28 03:58:37,204 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5831 transitions. Word has length 77 [2024-11-28 03:58:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:37,204 INFO L471 AbstractCegarLoop]: Abstraction has 4036 states and 5831 transitions. [2024-11-28 03:58:37,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5831 transitions. [2024-11-28 03:58:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:37,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:37,207 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:58:37,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:37,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 38304834, now seen corresponding path program 1 times [2024-11-28 03:58:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966497839] [2024-11-28 03:58:37,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:37,297 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 03:58:37,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:37,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966497839] [2024-11-28 03:58:37,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966497839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:37,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:37,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:37,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714472842] [2024-11-28 03:58:37,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:37,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:37,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:37,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:37,300 INFO L87 Difference]: Start difference. First operand 4036 states and 5831 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:37,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:37,686 INFO L93 Difference]: Finished difference Result 8102 states and 11884 transitions. [2024-11-28 03:58:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:37,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:37,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:37,720 INFO L225 Difference]: With dead ends: 8102 [2024-11-28 03:58:37,720 INFO L226 Difference]: Without dead ends: 4078 [2024-11-28 03:58:37,735 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 03:58:37,737 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:37,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 830 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:37,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4078 states. [2024-11-28 03:58:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4078 to 4078. [2024-11-28 03:58:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 3508 states have (on average 1.4227480045610035) internal successors, (4991), 3572 states have internal predecessors, (4991), 317 states have call successors, (317), 194 states have call predecessors, (317), 252 states have return successors, (546), 319 states have call predecessors, (546), 317 states have call successors, (546) [2024-11-28 03:58:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 5854 transitions. [2024-11-28 03:58:38,208 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 5854 transitions. Word has length 77 [2024-11-28 03:58:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:38,209 INFO L471 AbstractCegarLoop]: Abstraction has 4078 states and 5854 transitions. [2024-11-28 03:58:38,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:38,210 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 5854 transitions. [2024-11-28 03:58:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:58:38,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:38,212 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:38,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:58:38,214 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:38,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash 697836356, now seen corresponding path program 1 times [2024-11-28 03:58:38,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:38,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129480495] [2024-11-28 03:58:38,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:38,286 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 03:58:38,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129480495] [2024-11-28 03:58:38,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129480495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:38,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:38,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:38,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900463710] [2024-11-28 03:58:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:38,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:38,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:38,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:38,289 INFO L87 Difference]: Start difference. First operand 4078 states and 5854 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:39,128 INFO L93 Difference]: Finished difference Result 12140 states and 17599 transitions. [2024-11-28 03:58:39,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:39,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-28 03:58:39,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:39,184 INFO L225 Difference]: With dead ends: 12140 [2024-11-28 03:58:39,184 INFO L226 Difference]: Without dead ends: 8074 [2024-11-28 03:58:39,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:39,201 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 376 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:39,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 713 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2024-11-28 03:58:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 8041. [2024-11-28 03:58:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8041 states, 6906 states have (on average 1.4097885896322038) internal successors, (9736), 7033 states have internal predecessors, (9736), 630 states have call successors, (630), 388 states have call predecessors, (630), 504 states have return successors, (1081), 627 states have call predecessors, (1081), 630 states have call successors, (1081) [2024-11-28 03:58:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 11447 transitions. [2024-11-28 03:58:40,212 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 11447 transitions. Word has length 77 [2024-11-28 03:58:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:40,213 INFO L471 AbstractCegarLoop]: Abstraction has 8041 states and 11447 transitions. [2024-11-28 03:58:40,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 11447 transitions. [2024-11-28 03:58:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:40,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:40,225 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] [2024-11-28 03:58:40,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:58:40,225 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:40,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:40,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1514185850, now seen corresponding path program 1 times [2024-11-28 03:58:40,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:40,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366351943] [2024-11-28 03:58:40,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:40,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:40,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:40,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366351943] [2024-11-28 03:58:40,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366351943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:40,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866103338] [2024-11-28 03:58:40,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:40,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:40,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:40,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:40,359 INFO L87 Difference]: Start difference. First operand 8041 states and 11447 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:40,983 INFO L93 Difference]: Finished difference Result 16169 states and 23376 transitions. [2024-11-28 03:58:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:40,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:41,040 INFO L225 Difference]: With dead ends: 16169 [2024-11-28 03:58:41,040 INFO L226 Difference]: Without dead ends: 8140 [2024-11-28 03:58:41,069 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 03:58:41,070 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:41,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 830 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:41,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8140 states. [2024-11-28 03:58:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8140 to 8140. [2024-11-28 03:58:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8140 states, 7005 states have (on average 1.3992862241256245) internal successors, (9802), 7132 states have internal predecessors, (9802), 630 states have call successors, (630), 388 states have call predecessors, (630), 504 states have return successors, (1081), 627 states have call predecessors, (1081), 630 states have call successors, (1081) [2024-11-28 03:58:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8140 states to 8140 states and 11513 transitions. [2024-11-28 03:58:41,904 INFO L78 Accepts]: Start accepts. Automaton has 8140 states and 11513 transitions. Word has length 94 [2024-11-28 03:58:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:41,907 INFO L471 AbstractCegarLoop]: Abstraction has 8140 states and 11513 transitions. [2024-11-28 03:58:41,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:41,907 INFO L276 IsEmpty]: Start isEmpty. Operand 8140 states and 11513 transitions. [2024-11-28 03:58:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:41,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:41,921 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] [2024-11-28 03:58:41,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:58:41,921 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:41,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:41,922 INFO L85 PathProgramCache]: Analyzing trace with hash -841619400, now seen corresponding path program 1 times [2024-11-28 03:58:41,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:41,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680155553] [2024-11-28 03:58:41,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:41,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:42,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:42,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680155553] [2024-11-28 03:58:42,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680155553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:42,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:42,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:42,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65889775] [2024-11-28 03:58:42,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:42,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:42,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:42,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:42,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:42,133 INFO L87 Difference]: Start difference. First operand 8140 states and 11513 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:44,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:44,452 INFO L93 Difference]: Finished difference Result 24868 states and 35723 transitions. [2024-11-28 03:58:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:44,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:44,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:44,596 INFO L225 Difference]: With dead ends: 24868 [2024-11-28 03:58:44,596 INFO L226 Difference]: Without dead ends: 16741 [2024-11-28 03:58:44,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:58:44,639 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 411 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:44,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 701 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:58:44,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16741 states. [2024-11-28 03:58:46,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16741 to 15604. [2024-11-28 03:58:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15604 states, 13433 states have (on average 1.3804064616988014) internal successors, (18543), 13748 states have internal predecessors, (18543), 1148 states have call successors, (1148), 716 states have call predecessors, (1148), 1022 states have return successors, (2155), 1155 states have call predecessors, (2155), 1148 states have call successors, (2155) [2024-11-28 03:58:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15604 states to 15604 states and 21846 transitions. [2024-11-28 03:58:46,131 INFO L78 Accepts]: Start accepts. Automaton has 15604 states and 21846 transitions. Word has length 94 [2024-11-28 03:58:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:46,132 INFO L471 AbstractCegarLoop]: Abstraction has 15604 states and 21846 transitions. [2024-11-28 03:58:46,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:46,132 INFO L276 IsEmpty]: Start isEmpty. Operand 15604 states and 21846 transitions. [2024-11-28 03:58:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:46,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:46,143 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] [2024-11-28 03:58:46,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:58:46,144 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:46,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1739012678, now seen corresponding path program 1 times [2024-11-28 03:58:46,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:46,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317699963] [2024-11-28 03:58:46,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:46,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:46,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317699963] [2024-11-28 03:58:46,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317699963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:46,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:46,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574248108] [2024-11-28 03:58:46,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:46,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:46,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:46,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:46,394 INFO L87 Difference]: Start difference. First operand 15604 states and 21846 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:47,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:47,735 INFO L93 Difference]: Finished difference Result 18948 states and 26620 transitions. [2024-11-28 03:58:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:47,800 INFO L225 Difference]: With dead ends: 18948 [2024-11-28 03:58:47,800 INFO L226 Difference]: Without dead ends: 10155 [2024-11-28 03:58:47,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:58:47,831 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 408 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:47,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 684 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:58:47,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2024-11-28 03:58:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 9490. [2024-11-28 03:58:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9490 states, 8199 states have (on average 1.3654104159043785) internal successors, (11195), 8314 states have internal predecessors, (11195), 732 states have call successors, (732), 448 states have call predecessors, (732), 558 states have return successors, (1123), 735 states have call predecessors, (1123), 732 states have call successors, (1123) [2024-11-28 03:58:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9490 states to 9490 states and 13050 transitions. [2024-11-28 03:58:48,694 INFO L78 Accepts]: Start accepts. Automaton has 9490 states and 13050 transitions. Word has length 94 [2024-11-28 03:58:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:48,695 INFO L471 AbstractCegarLoop]: Abstraction has 9490 states and 13050 transitions. [2024-11-28 03:58:48,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 9490 states and 13050 transitions. [2024-11-28 03:58:48,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:48,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:48,703 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] [2024-11-28 03:58:48,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:58:48,703 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:48,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:48,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1490866184, now seen corresponding path program 1 times [2024-11-28 03:58:48,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:48,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907109730] [2024-11-28 03:58:48,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:48,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:48,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:48,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907109730] [2024-11-28 03:58:48,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907109730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:48,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:48,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:48,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422189885] [2024-11-28 03:58:48,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:48,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:48,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:48,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:48,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:48,851 INFO L87 Difference]: Start difference. First operand 9490 states and 13050 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:49,943 INFO L93 Difference]: Finished difference Result 18965 states and 26282 transitions. [2024-11-28 03:58:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:49,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:50,032 INFO L225 Difference]: With dead ends: 18965 [2024-11-28 03:58:50,032 INFO L226 Difference]: Without dead ends: 9490 [2024-11-28 03:58:50,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:50,057 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 254 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:50,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 352 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:50,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9490 states. [2024-11-28 03:58:51,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9490 to 9490. [2024-11-28 03:58:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9490 states, 8199 states have (on average 1.3524820100012196) internal successors, (11089), 8314 states have internal predecessors, (11089), 732 states have call successors, (732), 448 states have call predecessors, (732), 558 states have return successors, (1123), 735 states have call predecessors, (1123), 732 states have call successors, (1123) [2024-11-28 03:58:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9490 states to 9490 states and 12944 transitions. [2024-11-28 03:58:51,140 INFO L78 Accepts]: Start accepts. Automaton has 9490 states and 12944 transitions. Word has length 94 [2024-11-28 03:58:51,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:51,140 INFO L471 AbstractCegarLoop]: Abstraction has 9490 states and 12944 transitions. [2024-11-28 03:58:51,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9490 states and 12944 transitions. [2024-11-28 03:58:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:51,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:51,148 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] [2024-11-28 03:58:51,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:58:51,148 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:51,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1067219462, now seen corresponding path program 1 times [2024-11-28 03:58:51,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011075355] [2024-11-28 03:58:51,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:51,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:51,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:51,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011075355] [2024-11-28 03:58:51,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011075355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:51,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:51,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:51,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758447000] [2024-11-28 03:58:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:51,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:51,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:51,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:51,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:51,378 INFO L87 Difference]: Start difference. First operand 9490 states and 12944 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:52,733 INFO L93 Difference]: Finished difference Result 18256 states and 24762 transitions. [2024-11-28 03:58:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:58:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:52,779 INFO L225 Difference]: With dead ends: 18256 [2024-11-28 03:58:52,779 INFO L226 Difference]: Without dead ends: 10609 [2024-11-28 03:58:52,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:52,793 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 389 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:52,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 664 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:58:52,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2024-11-28 03:58:53,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 8798. [2024-11-28 03:58:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8798 states, 7631 states have (on average 1.3438605687328005) internal successors, (10255), 7714 states have internal predecessors, (10255), 672 states have call successors, (672), 416 states have call predecessors, (672), 494 states have return successors, (979), 671 states have call predecessors, (979), 672 states have call successors, (979) [2024-11-28 03:58:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8798 states to 8798 states and 11906 transitions. [2024-11-28 03:58:53,444 INFO L78 Accepts]: Start accepts. Automaton has 8798 states and 11906 transitions. Word has length 94 [2024-11-28 03:58:53,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:53,445 INFO L471 AbstractCegarLoop]: Abstraction has 8798 states and 11906 transitions. [2024-11-28 03:58:53,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:53,446 INFO L276 IsEmpty]: Start isEmpty. Operand 8798 states and 11906 transitions. [2024-11-28 03:58:53,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:53,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:53,451 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] [2024-11-28 03:58:53,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:58:53,451 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:53,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1855940536, now seen corresponding path program 1 times [2024-11-28 03:58:53,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:53,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445805304] [2024-11-28 03:58:53,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:53,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:53,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445805304] [2024-11-28 03:58:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445805304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:53,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:53,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156635697] [2024-11-28 03:58:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:53,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:53,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:53,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:53,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:53,639 INFO L87 Difference]: Start difference. First operand 8798 states and 11906 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:55,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:55,074 INFO L93 Difference]: Finished difference Result 16806 states and 22770 transitions. [2024-11-28 03:58:55,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:58:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:55,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:55,129 INFO L225 Difference]: With dead ends: 16806 [2024-11-28 03:58:55,129 INFO L226 Difference]: Without dead ends: 9525 [2024-11-28 03:58:55,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:55,207 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 395 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:55,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 650 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:58:55,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9525 states. [2024-11-28 03:58:55,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9525 to 8702. [2024-11-28 03:58:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8702 states, 7559 states have (on average 1.3386691361291176) internal successors, (10119), 7618 states have internal predecessors, (10119), 672 states have call successors, (672), 416 states have call predecessors, (672), 470 states have return successors, (929), 669 states have call predecessors, (929), 672 states have call successors, (929) [2024-11-28 03:58:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 11720 transitions. [2024-11-28 03:58:55,877 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 11720 transitions. Word has length 94 [2024-11-28 03:58:55,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:55,877 INFO L471 AbstractCegarLoop]: Abstraction has 8702 states and 11720 transitions. [2024-11-28 03:58:55,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 11720 transitions. [2024-11-28 03:58:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:55,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:55,881 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] [2024-11-28 03:58:55,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:58:55,881 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:55,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 10573370, now seen corresponding path program 1 times [2024-11-28 03:58:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952370110] [2024-11-28 03:58:55,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:58:56,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:56,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952370110] [2024-11-28 03:58:56,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952370110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:56,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:56,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:56,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093114618] [2024-11-28 03:58:56,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:56,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:56,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:56,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:56,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:56,020 INFO L87 Difference]: Start difference. First operand 8702 states and 11720 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:57,004 INFO L93 Difference]: Finished difference Result 18983 states and 25574 transitions. [2024-11-28 03:58:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:58:57,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2024-11-28 03:58:57,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:57,062 INFO L225 Difference]: With dead ends: 18983 [2024-11-28 03:58:57,063 INFO L226 Difference]: Without dead ends: 10296 [2024-11-28 03:58:57,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:57,085 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 290 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:57,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 351 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:58:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10296 states. [2024-11-28 03:58:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10296 to 10184. [2024-11-28 03:58:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10184 states, 8937 states have (on average 1.3007720711648205) internal successors, (11625), 9008 states have internal predecessors, (11625), 696 states have call successors, (696), 472 states have call predecessors, (696), 550 states have return successors, (1021), 705 states have call predecessors, (1021), 696 states have call successors, (1021) [2024-11-28 03:58:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10184 states to 10184 states and 13342 transitions. [2024-11-28 03:58:57,939 INFO L78 Accepts]: Start accepts. Automaton has 10184 states and 13342 transitions. Word has length 94 [2024-11-28 03:58:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:57,940 INFO L471 AbstractCegarLoop]: Abstraction has 10184 states and 13342 transitions. [2024-11-28 03:58:57,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:58:57,940 INFO L276 IsEmpty]: Start isEmpty. Operand 10184 states and 13342 transitions. [2024-11-28 03:58:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:57,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:57,943 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] [2024-11-28 03:58:57,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:58:57,944 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:57,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:57,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1018785928, now seen corresponding path program 1 times [2024-11-28 03:58:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:57,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821027197] [2024-11-28 03:58:57,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:58:58,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:58,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821027197] [2024-11-28 03:58:58,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821027197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:58,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447847908] [2024-11-28 03:58:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:58,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:58,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:58,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:58,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:58,022 INFO L87 Difference]: Start difference. First operand 10184 states and 13342 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:58:59,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:59,866 INFO L93 Difference]: Finished difference Result 29882 states and 39375 transitions. [2024-11-28 03:58:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 94 [2024-11-28 03:58:59,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:59,983 INFO L225 Difference]: With dead ends: 29882 [2024-11-28 03:58:59,983 INFO L226 Difference]: Without dead ends: 19713 [2024-11-28 03:59:00,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:00,014 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 289 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:00,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 509 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19713 states. [2024-11-28 03:59:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19713 to 19702. [2024-11-28 03:59:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19702 states, 17270 states have (on average 1.2835552982049798) internal successors, (22167), 17408 states have internal predecessors, (22167), 1339 states have call successors, (1339), 920 states have call predecessors, (1339), 1092 states have return successors, (2201), 1377 states have call predecessors, (2201), 1339 states have call successors, (2201) [2024-11-28 03:59:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19702 states to 19702 states and 25707 transitions. [2024-11-28 03:59:01,542 INFO L78 Accepts]: Start accepts. Automaton has 19702 states and 25707 transitions. Word has length 94 [2024-11-28 03:59:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:01,542 INFO L471 AbstractCegarLoop]: Abstraction has 19702 states and 25707 transitions. [2024-11-28 03:59:01,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:59:01,543 INFO L276 IsEmpty]: Start isEmpty. Operand 19702 states and 25707 transitions. [2024-11-28 03:59:01,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:59:01,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:01,546 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] [2024-11-28 03:59:01,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:59:01,547 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:01,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash -288242230, now seen corresponding path program 1 times [2024-11-28 03:59:01,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227972745] [2024-11-28 03:59:01,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:59:01,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:01,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227972745] [2024-11-28 03:59:01,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227972745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:01,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:01,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:01,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732453262] [2024-11-28 03:59:01,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:01,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:01,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:01,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:01,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:01,587 INFO L87 Difference]: Start difference. First operand 19702 states and 25707 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:59:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:02,729 INFO L93 Difference]: Finished difference Result 37000 states and 48244 transitions. [2024-11-28 03:59:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 96 [2024-11-28 03:59:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:02,835 INFO L225 Difference]: With dead ends: 37000 [2024-11-28 03:59:02,835 INFO L226 Difference]: Without dead ends: 17313 [2024-11-28 03:59:02,879 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 03:59:02,883 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:02,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 206 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:59:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17313 states. [2024-11-28 03:59:03,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17313 to 17313. [2024-11-28 03:59:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17313 states, 15194 states have (on average 1.281624325391602) internal successors, (19473), 15321 states have internal predecessors, (19473), 1156 states have call successors, (1156), 800 states have call predecessors, (1156), 962 states have return successors, (1933), 1193 states have call predecessors, (1933), 1156 states have call successors, (1933) [2024-11-28 03:59:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17313 states to 17313 states and 22562 transitions. [2024-11-28 03:59:04,027 INFO L78 Accepts]: Start accepts. Automaton has 17313 states and 22562 transitions. Word has length 96 [2024-11-28 03:59:04,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:04,028 INFO L471 AbstractCegarLoop]: Abstraction has 17313 states and 22562 transitions. [2024-11-28 03:59:04,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:59:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 17313 states and 22562 transitions. [2024-11-28 03:59:04,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:59:04,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:04,031 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, 1, 1, 1] [2024-11-28 03:59:04,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:59:04,031 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:04,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash 287239672, now seen corresponding path program 1 times [2024-11-28 03:59:04,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126787401] [2024-11-28 03:59:04,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:04,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 03:59:04,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:04,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126787401] [2024-11-28 03:59:04,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126787401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:04,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:04,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:59:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247502444] [2024-11-28 03:59:04,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:04,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:04,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:04,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:04,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:04,106 INFO L87 Difference]: Start difference. First operand 17313 states and 22562 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:59:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:06,672 INFO L93 Difference]: Finished difference Result 55434 states and 71958 transitions. [2024-11-28 03:59:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:59:06,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 98 [2024-11-28 03:59:06,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:06,864 INFO L225 Difference]: With dead ends: 55434 [2024-11-28 03:59:06,864 INFO L226 Difference]: Without dead ends: 38136 [2024-11-28 03:59:06,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:06,909 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 266 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:06,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 543 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:59:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38136 states. [2024-11-28 03:59:09,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38136 to 37817. [2024-11-28 03:59:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37817 states, 33422 states have (on average 1.256747052839447) internal successors, (42003), 33916 states have internal predecessors, (42003), 2175 states have call successors, (2175), 1540 states have call predecessors, (2175), 2219 states have return successors, (4597), 2364 states have call predecessors, (4597), 2175 states have call successors, (4597) [2024-11-28 03:59:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37817 states to 37817 states and 48775 transitions. [2024-11-28 03:59:09,641 INFO L78 Accepts]: Start accepts. Automaton has 37817 states and 48775 transitions. Word has length 98 [2024-11-28 03:59:09,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:09,641 INFO L471 AbstractCegarLoop]: Abstraction has 37817 states and 48775 transitions. [2024-11-28 03:59:09,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:59:09,641 INFO L276 IsEmpty]: Start isEmpty. Operand 37817 states and 48775 transitions. [2024-11-28 03:59:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:59:09,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:09,644 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, 1, 1, 1] [2024-11-28 03:59:09,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:59:09,645 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:09,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:09,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2130664394, now seen corresponding path program 1 times [2024-11-28 03:59:09,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:09,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355844597] [2024-11-28 03:59:09,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:09,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:59:09,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:09,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355844597] [2024-11-28 03:59:09,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355844597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:09,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:09,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:09,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000934555] [2024-11-28 03:59:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:09,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:09,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:09,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:09,688 INFO L87 Difference]: Start difference. First operand 37817 states and 48775 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:59:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:11,719 INFO L93 Difference]: Finished difference Result 75613 states and 97511 transitions. [2024-11-28 03:59:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:11,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-11-28 03:59:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:11,851 INFO L225 Difference]: With dead ends: 75613 [2024-11-28 03:59:11,852 INFO L226 Difference]: Without dead ends: 37809 [2024-11-28 03:59:11,922 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 03:59:11,924 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:11,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:59:11,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37809 states. [2024-11-28 03:59:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37809 to 37809. [2024-11-28 03:59:15,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37809 states, 33419 states have (on average 1.2566803315479218) internal successors, (41997), 33912 states have internal predecessors, (41997), 2170 states have call successors, (2170), 1540 states have call predecessors, (2170), 2219 states have return successors, (4589), 2358 states have call predecessors, (4589), 2170 states have call successors, (4589) [2024-11-28 03:59:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37809 states to 37809 states and 48756 transitions. [2024-11-28 03:59:15,237 INFO L78 Accepts]: Start accepts. Automaton has 37809 states and 48756 transitions. Word has length 98 [2024-11-28 03:59:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:15,237 INFO L471 AbstractCegarLoop]: Abstraction has 37809 states and 48756 transitions. [2024-11-28 03:59:15,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:59:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 37809 states and 48756 transitions. [2024-11-28 03:59:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 03:59:15,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:15,239 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:15,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:59:15,240 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:15,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1043887592, now seen corresponding path program 1 times [2024-11-28 03:59:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:15,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32767958] [2024-11-28 03:59:15,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:59:15,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:15,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32767958] [2024-11-28 03:59:15,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32767958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:15,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:15,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:59:15,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343902765] [2024-11-28 03:59:15,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:15,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:15,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:15,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:15,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:15,311 INFO L87 Difference]: Start difference. First operand 37809 states and 48756 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:59:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:21,124 INFO L93 Difference]: Finished difference Result 108260 states and 140220 transitions. [2024-11-28 03:59:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:59:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 102 [2024-11-28 03:59:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:21,352 INFO L225 Difference]: With dead ends: 108260 [2024-11-28 03:59:21,352 INFO L226 Difference]: Without dead ends: 70466 [2024-11-28 03:59:21,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:21,431 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 265 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:21,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 451 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:59:21,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70466 states.