./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3736b39782d33d69e49d45bc83c966fe9403fa4c46d3557706bbbfc10e7a8136 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:09:10,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:09:10,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:09:10,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:09:10,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:09:10,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:09:10,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:09:10,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:09:10,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:09:10,870 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:09:10,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:09:10,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:09:10,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:09:10,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:09:10,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:09:10,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:09:10,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:09:10,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:09:10,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:09:10,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:09:10,874 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:09:10,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:09:10,874 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:09:10,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:09:10,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:09:10,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:09:10,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:09:10,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:09:10,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:09:10,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:09:10,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:09:10,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:09:10,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:09:10,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:09:10,876 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:09:10,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:09:10,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:09:10,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:09:10,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:09:10,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:09:10,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:09:10,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:09:10,878 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_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3736b39782d33d69e49d45bc83c966fe9403fa4c46d3557706bbbfc10e7a8136 [2024-11-23 23:09:11,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:09:11,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:09:11,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:09:11,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:09:11,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:09:11,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c [2024-11-23 23:09:14,318 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/data/165536d92/96dd14bf0f3349afae42b92e5dd205a2/FLAG1f72ec768 [2024-11-23 23:09:14,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:09:14,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c [2024-11-23 23:09:14,962 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/data/165536d92/96dd14bf0f3349afae42b92e5dd205a2/FLAG1f72ec768 [2024-11-23 23:09:14,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/data/165536d92/96dd14bf0f3349afae42b92e5dd205a2 [2024-11-23 23:09:14,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:09:14,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:09:14,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:09:14,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:09:15,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:09:15,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:09:14" (1/1) ... [2024-11-23 23:09:15,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449faad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:15, skipping insertion in model container [2024-11-23 23:09:15,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:09:14" (1/1) ... [2024-11-23 23:09:15,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:09:15,570 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_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c[26860,26873] [2024-11-23 23:09:15,623 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_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c[29197,29210] [2024-11-23 23:09:16,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:09:16,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:09:16,609 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_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c[26860,26873] [2024-11-23 23:09:16,618 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_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c[29197,29210] [2024-11-23 23:09:17,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:09:17,211 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:09:17,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17 WrapperNode [2024-11-23 23:09:17,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:09:17,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:09:17,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:09:17,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:09:17,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:17,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:17,711 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-11-23 23:09:17,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:09:17,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:09:17,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:09:17,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:09:17,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:17,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:17,776 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,068 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:09:18,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:09:18,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:09:18,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:09:18,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:09:18,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (1/1) ... [2024-11-23 23:09:18,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:09:18,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:09:18,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:09:18,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_669d990e-6ce0-4d96-88b8-e3fe69f39f5b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:09:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:09:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:09:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:09:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:09:18,886 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:09:18,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:09:25,333 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-23 23:09:25,334 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:09:25,365 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:09:25,366 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 23:09:25,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:09:25 BoogieIcfgContainer [2024-11-23 23:09:25,366 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:09:25,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:09:25,369 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:09:25,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:09:25,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:09:14" (1/3) ... [2024-11-23 23:09:25,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145810e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:09:25, skipping insertion in model container [2024-11-23 23:09:25,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:09:17" (2/3) ... [2024-11-23 23:09:25,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145810e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:09:25, skipping insertion in model container [2024-11-23 23:09:25,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:09:25" (3/3) ... [2024-11-23 23:09:25,377 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c [2024-11-23 23:09:25,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:09:25,401 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label03.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 23:09:25,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:09:25,508 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;@42f0591e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:09:25,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:09:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-23 23:09:25,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:25,526 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:25,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:25,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:25,535 INFO L85 PathProgramCache]: Analyzing trace with hash -406238267, now seen corresponding path program 1 times [2024-11-23 23:09:25,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:25,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981573582] [2024-11-23 23:09:25,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981573582] [2024-11-23 23:09:25,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981573582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:25,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:25,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:09:25,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420102631] [2024-11-23 23:09:25,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:25,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:25,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:26,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:26,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:26,025 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:31,133 INFO L93 Difference]: Finished difference Result 2600 states and 4984 transitions. [2024-11-23 23:09:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:31,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-23 23:09:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:31,163 INFO L225 Difference]: With dead ends: 2600 [2024-11-23 23:09:31,163 INFO L226 Difference]: Without dead ends: 1633 [2024-11-23 23:09:31,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:31,172 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 1030 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:31,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 756 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-23 23:09:31,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-23 23:09:31,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-11-23 23:09:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.6210913549969344) internal successors, (2644), 1632 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2644 transitions. [2024-11-23 23:09:31,294 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2644 transitions. Word has length 20 [2024-11-23 23:09:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:31,294 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2644 transitions. [2024-11-23 23:09:31,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2644 transitions. [2024-11-23 23:09:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-23 23:09:31,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:31,297 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] [2024-11-23 23:09:31,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:09:31,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:31,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:31,298 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-11-23 23:09:31,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:31,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342387672] [2024-11-23 23:09:31,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:31,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:31,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342387672] [2024-11-23 23:09:31,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342387672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:31,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:31,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:09:31,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979919318] [2024-11-23 23:09:31,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:31,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:09:31,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:31,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:09:31,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:31,737 INFO L87 Difference]: Start difference. First operand 1633 states and 2644 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:31,872 INFO L93 Difference]: Finished difference Result 1698 states and 2746 transitions. [2024-11-23 23:09:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:09:31,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-23 23:09:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:31,881 INFO L225 Difference]: With dead ends: 1698 [2024-11-23 23:09:31,881 INFO L226 Difference]: Without dead ends: 1633 [2024-11-23 23:09:31,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:31,885 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:31,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:09:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-23 23:09:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-11-23 23:09:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.5836909871244635) internal successors, (2583), 1632 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2583 transitions. [2024-11-23 23:09:31,946 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2583 transitions. Word has length 31 [2024-11-23 23:09:31,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:31,946 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2583 transitions. [2024-11-23 23:09:31,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2583 transitions. [2024-11-23 23:09:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 23:09:31,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:31,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:31,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:09:31,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:31,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-11-23 23:09:31,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:31,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268192342] [2024-11-23 23:09:31,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:31,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:32,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:32,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268192342] [2024-11-23 23:09:32,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268192342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:32,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:32,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:09:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254740545] [2024-11-23 23:09:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:32,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:09:32,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:32,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:09:32,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:09:32,743 INFO L87 Difference]: Start difference. First operand 1633 states and 2583 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:33,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:33,482 INFO L93 Difference]: Finished difference Result 2609 states and 4151 transitions. [2024-11-23 23:09:33,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:09:33,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-23 23:09:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:33,493 INFO L225 Difference]: With dead ends: 2609 [2024-11-23 23:09:33,493 INFO L226 Difference]: Without dead ends: 2548 [2024-11-23 23:09:33,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:09:33,495 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:33,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:09:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-23 23:09:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1692. [2024-11-23 23:09:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1690 states have (on average 1.5846153846153845) internal successors, (2678), 1691 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2678 transitions. [2024-11-23 23:09:33,551 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2678 transitions. Word has length 91 [2024-11-23 23:09:33,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:33,551 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 2678 transitions. [2024-11-23 23:09:33,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2678 transitions. [2024-11-23 23:09:33,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 23:09:33,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:33,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:33,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:09:33,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:33,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:33,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-11-23 23:09:33,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:33,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884102029] [2024-11-23 23:09:33,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:33,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:33,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:33,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884102029] [2024-11-23 23:09:33,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884102029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:33,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:33,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:33,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409652149] [2024-11-23 23:09:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:33,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:33,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:33,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:33,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:33,775 INFO L87 Difference]: Start difference. First operand 1692 states and 2678 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:33,828 INFO L93 Difference]: Finished difference Result 1921 states and 3045 transitions. [2024-11-23 23:09:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:33,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 23:09:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:33,836 INFO L225 Difference]: With dead ends: 1921 [2024-11-23 23:09:33,836 INFO L226 Difference]: Without dead ends: 1801 [2024-11-23 23:09:33,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:33,838 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:33,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:33,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-11-23 23:09:33,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2024-11-23 23:09:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.5848636616583194) internal successors, (2848), 1798 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2848 transitions. [2024-11-23 23:09:33,894 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2848 transitions. Word has length 93 [2024-11-23 23:09:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:33,894 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2848 transitions. [2024-11-23 23:09:33,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2848 transitions. [2024-11-23 23:09:33,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 23:09:33,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:33,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:33,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:09:33,898 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:33,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:33,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-11-23 23:09:33,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:33,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487558797] [2024-11-23 23:09:33,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:33,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:34,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:34,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:34,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487558797] [2024-11-23 23:09:34,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487558797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:34,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:34,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:09:34,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505942593] [2024-11-23 23:09:34,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:34,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:09:34,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:34,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:09:34,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:09:34,743 INFO L87 Difference]: Start difference. First operand 1799 states and 2848 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:35,402 INFO L93 Difference]: Finished difference Result 2028 states and 3212 transitions. [2024-11-23 23:09:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:09:35,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 23:09:35,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:35,410 INFO L225 Difference]: With dead ends: 2028 [2024-11-23 23:09:35,411 INFO L226 Difference]: Without dead ends: 1801 [2024-11-23 23:09:35,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:09:35,413 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1590 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:35,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2366 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:09:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-11-23 23:09:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2024-11-23 23:09:35,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.5837506956037841) internal successors, (2846), 1798 states have internal predecessors, (2846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2846 transitions. [2024-11-23 23:09:35,464 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2846 transitions. Word has length 93 [2024-11-23 23:09:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:35,464 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2846 transitions. [2024-11-23 23:09:35,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2846 transitions. [2024-11-23 23:09:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:09:35,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:35,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:35,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:09:35,467 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:35,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:35,468 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-11-23 23:09:35,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181900305] [2024-11-23 23:09:35,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:35,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:35,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181900305] [2024-11-23 23:09:35,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181900305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:35,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:35,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:09:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825058279] [2024-11-23 23:09:35,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:35,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:09:35,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:35,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:09:35,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:35,971 INFO L87 Difference]: Start difference. First operand 1799 states and 2846 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:36,042 INFO L93 Difference]: Finished difference Result 1807 states and 2855 transitions. [2024-11-23 23:09:36,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:09:36,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:09:36,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:36,052 INFO L225 Difference]: With dead ends: 1807 [2024-11-23 23:09:36,052 INFO L226 Difference]: Without dead ends: 1805 [2024-11-23 23:09:36,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:36,055 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:36,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:36,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-11-23 23:09:36,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1805. [2024-11-23 23:09:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1803 states have (on average 1.5812534664448141) internal successors, (2851), 1804 states have internal predecessors, (2851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2851 transitions. [2024-11-23 23:09:36,114 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2851 transitions. Word has length 94 [2024-11-23 23:09:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:36,114 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2851 transitions. [2024-11-23 23:09:36,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2851 transitions. [2024-11-23 23:09:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:36,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:36,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:36,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:09:36,119 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:36,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-11-23 23:09:36,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:36,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570852388] [2024-11-23 23:09:36,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:36,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:36,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570852388] [2024-11-23 23:09:36,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570852388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:36,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:36,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:36,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119998021] [2024-11-23 23:09:36,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:36,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:36,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:36,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:36,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:36,269 INFO L87 Difference]: Start difference. First operand 1805 states and 2851 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:36,323 INFO L93 Difference]: Finished difference Result 2052 states and 3237 transitions. [2024-11-23 23:09:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:36,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:36,332 INFO L225 Difference]: With dead ends: 2052 [2024-11-23 23:09:36,332 INFO L226 Difference]: Without dead ends: 1926 [2024-11-23 23:09:36,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:36,334 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:36,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-23 23:09:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1924. [2024-11-23 23:09:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1924 states, 1922 states have (on average 1.5790842872008324) internal successors, (3035), 1923 states have internal predecessors, (3035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 3035 transitions. [2024-11-23 23:09:36,392 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 3035 transitions. Word has length 95 [2024-11-23 23:09:36,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:36,392 INFO L471 AbstractCegarLoop]: Abstraction has 1924 states and 3035 transitions. [2024-11-23 23:09:36,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 3035 transitions. [2024-11-23 23:09:36,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:36,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:36,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:36,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:09:36,395 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:36,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-11-23 23:09:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:36,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783043343] [2024-11-23 23:09:36,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:36,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:36,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783043343] [2024-11-23 23:09:36,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783043343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:36,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781344210] [2024-11-23 23:09:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:36,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:36,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:36,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:36,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:36,533 INFO L87 Difference]: Start difference. First operand 1924 states and 3035 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:36,596 INFO L93 Difference]: Finished difference Result 2598 states and 4087 transitions. [2024-11-23 23:09:36,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:36,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:36,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:36,607 INFO L225 Difference]: With dead ends: 2598 [2024-11-23 23:09:36,607 INFO L226 Difference]: Without dead ends: 2249 [2024-11-23 23:09:36,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:36,609 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:36,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-11-23 23:09:36,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2247. [2024-11-23 23:09:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2245 states have (on average 1.5737193763919821) internal successors, (3533), 2246 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3533 transitions. [2024-11-23 23:09:36,678 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3533 transitions. Word has length 95 [2024-11-23 23:09:36,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:36,679 INFO L471 AbstractCegarLoop]: Abstraction has 2247 states and 3533 transitions. [2024-11-23 23:09:36,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3533 transitions. [2024-11-23 23:09:36,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:36,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:36,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:36,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:09:36,681 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:36,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:36,682 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-11-23 23:09:36,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:36,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50106959] [2024-11-23 23:09:36,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:36,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50106959] [2024-11-23 23:09:36,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50106959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:36,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:36,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:36,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717401366] [2024-11-23 23:09:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:36,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:36,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:36,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:36,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:36,840 INFO L87 Difference]: Start difference. First operand 2247 states and 3533 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:36,917 INFO L93 Difference]: Finished difference Result 3543 states and 5539 transitions. [2024-11-23 23:09:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:36,931 INFO L225 Difference]: With dead ends: 3543 [2024-11-23 23:09:36,931 INFO L226 Difference]: Without dead ends: 2871 [2024-11-23 23:09:36,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:36,936 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:36,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2024-11-23 23:09:37,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2869. [2024-11-23 23:09:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2867 states have (on average 1.5629577956051621) internal successors, (4481), 2868 states have internal predecessors, (4481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 4481 transitions. [2024-11-23 23:09:37,082 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 4481 transitions. Word has length 95 [2024-11-23 23:09:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:37,082 INFO L471 AbstractCegarLoop]: Abstraction has 2869 states and 4481 transitions. [2024-11-23 23:09:37,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 4481 transitions. [2024-11-23 23:09:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:37,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:37,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:37,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:09:37,086 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:37,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:37,087 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-11-23 23:09:37,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:37,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603095272] [2024-11-23 23:09:37,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:37,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:37,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603095272] [2024-11-23 23:09:37,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603095272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:37,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:37,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:37,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165519552] [2024-11-23 23:09:37,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:37,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:37,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:37,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:37,345 INFO L87 Difference]: Start difference. First operand 2869 states and 4481 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:37,464 INFO L93 Difference]: Finished difference Result 5361 states and 8299 transitions. [2024-11-23 23:09:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:37,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:37,480 INFO L225 Difference]: With dead ends: 5361 [2024-11-23 23:09:37,480 INFO L226 Difference]: Without dead ends: 4067 [2024-11-23 23:09:37,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:37,483 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:37,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2024-11-23 23:09:37,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 4065. [2024-11-23 23:09:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 4063 states have (on average 1.5459020428254984) internal successors, (6281), 4064 states have internal predecessors, (6281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 6281 transitions. [2024-11-23 23:09:37,623 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 6281 transitions. Word has length 95 [2024-11-23 23:09:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:37,624 INFO L471 AbstractCegarLoop]: Abstraction has 4065 states and 6281 transitions. [2024-11-23 23:09:37,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 6281 transitions. [2024-11-23 23:09:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:37,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:37,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:37,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:09:37,626 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:37,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:37,626 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-11-23 23:09:37,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:37,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825797755] [2024-11-23 23:09:37,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:37,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:37,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:37,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825797755] [2024-11-23 23:09:37,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825797755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:37,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:37,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:37,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671391114] [2024-11-23 23:09:37,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:37,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:37,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:37,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:37,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:37,758 INFO L87 Difference]: Start difference. First operand 4065 states and 6281 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:37,926 INFO L93 Difference]: Finished difference Result 8853 states and 13531 transitions. [2024-11-23 23:09:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:37,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:37,956 INFO L225 Difference]: With dead ends: 8853 [2024-11-23 23:09:37,956 INFO L226 Difference]: Without dead ends: 6363 [2024-11-23 23:09:38,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:38,027 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:38,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6363 states. [2024-11-23 23:09:38,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6363 to 6361. [2024-11-23 23:09:38,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6361 states, 6359 states have (on average 1.523667243277245) internal successors, (9689), 6360 states have internal predecessors, (9689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6361 states to 6361 states and 9689 transitions. [2024-11-23 23:09:38,343 INFO L78 Accepts]: Start accepts. Automaton has 6361 states and 9689 transitions. Word has length 95 [2024-11-23 23:09:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:38,343 INFO L471 AbstractCegarLoop]: Abstraction has 6361 states and 9689 transitions. [2024-11-23 23:09:38,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6361 states and 9689 transitions. [2024-11-23 23:09:38,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:38,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:38,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:38,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:09:38,345 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:38,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:38,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-11-23 23:09:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:38,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160318187] [2024-11-23 23:09:38,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:38,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:38,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:38,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160318187] [2024-11-23 23:09:38,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160318187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:38,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:38,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:38,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478850954] [2024-11-23 23:09:38,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:38,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:38,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:38,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:38,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:38,464 INFO L87 Difference]: Start difference. First operand 6361 states and 9689 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:38,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:38,724 INFO L93 Difference]: Finished difference Result 15549 states and 23419 transitions. [2024-11-23 23:09:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:38,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:38,752 INFO L225 Difference]: With dead ends: 15549 [2024-11-23 23:09:38,752 INFO L226 Difference]: Without dead ends: 10763 [2024-11-23 23:09:38,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:38,760 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:38,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:38,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2024-11-23 23:09:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 10761. [2024-11-23 23:09:39,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10761 states, 10759 states have (on average 1.4983734547820429) internal successors, (16121), 10760 states have internal predecessors, (16121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10761 states to 10761 states and 16121 transitions. [2024-11-23 23:09:39,246 INFO L78 Accepts]: Start accepts. Automaton has 10761 states and 16121 transitions. Word has length 95 [2024-11-23 23:09:39,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:39,247 INFO L471 AbstractCegarLoop]: Abstraction has 10761 states and 16121 transitions. [2024-11-23 23:09:39,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 10761 states and 16121 transitions. [2024-11-23 23:09:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:39,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:39,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:39,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:09:39,250 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:39,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-11-23 23:09:39,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:39,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430484809] [2024-11-23 23:09:39,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:39,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:39,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:39,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430484809] [2024-11-23 23:09:39,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430484809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:39,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:39,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:39,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013265940] [2024-11-23 23:09:39,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:39,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:39,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:39,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:39,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:39,361 INFO L87 Difference]: Start difference. First operand 10761 states and 16121 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:40,019 INFO L93 Difference]: Finished difference Result 28365 states and 42043 transitions. [2024-11-23 23:09:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:40,100 INFO L225 Difference]: With dead ends: 28365 [2024-11-23 23:09:40,100 INFO L226 Difference]: Without dead ends: 19179 [2024-11-23 23:09:40,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:40,113 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:40,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2024-11-23 23:09:40,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 19177. [2024-11-23 23:09:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19177 states, 19175 states have (on average 1.4715514993481096) internal successors, (28217), 19176 states have internal predecessors, (28217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19177 states to 19177 states and 28217 transitions. [2024-11-23 23:09:40,875 INFO L78 Accepts]: Start accepts. Automaton has 19177 states and 28217 transitions. Word has length 95 [2024-11-23 23:09:40,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:40,875 INFO L471 AbstractCegarLoop]: Abstraction has 19177 states and 28217 transitions. [2024-11-23 23:09:40,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:40,876 INFO L276 IsEmpty]: Start isEmpty. Operand 19177 states and 28217 transitions. [2024-11-23 23:09:40,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:40,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:40,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:40,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:09:40,877 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:40,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:40,878 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-11-23 23:09:40,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:40,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971038317] [2024-11-23 23:09:40,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:40,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:40,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:40,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971038317] [2024-11-23 23:09:40,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971038317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:40,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:40,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:09:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239437178] [2024-11-23 23:09:40,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:40,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:09:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:40,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:09:40,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:40,998 INFO L87 Difference]: Start difference. First operand 19177 states and 28217 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:42,044 INFO L93 Difference]: Finished difference Result 52845 states and 76987 transitions. [2024-11-23 23:09:42,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:42,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:42,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:42,215 INFO L225 Difference]: With dead ends: 52845 [2024-11-23 23:09:42,215 INFO L226 Difference]: Without dead ends: 35243 [2024-11-23 23:09:42,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:42,239 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:42,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:09:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35243 states. [2024-11-23 23:09:43,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35243 to 35241. [2024-11-23 23:09:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35241 states, 35239 states have (on average 1.443656176395471) internal successors, (50873), 35240 states have internal predecessors, (50873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35241 states to 35241 states and 50873 transitions. [2024-11-23 23:09:43,849 INFO L78 Accepts]: Start accepts. Automaton has 35241 states and 50873 transitions. Word has length 95 [2024-11-23 23:09:43,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:43,852 INFO L471 AbstractCegarLoop]: Abstraction has 35241 states and 50873 transitions. [2024-11-23 23:09:43,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 35241 states and 50873 transitions. [2024-11-23 23:09:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 23:09:43,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:43,854 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:43,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:09:43,855 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:43,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash -18037440, now seen corresponding path program 1 times [2024-11-23 23:09:43,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:43,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528618109] [2024-11-23 23:09:43,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:43,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:09:44,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528618109] [2024-11-23 23:09:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528618109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:09:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136283443] [2024-11-23 23:09:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:44,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:09:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:44,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:09:44,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:09:44,198 INFO L87 Difference]: Start difference. First operand 35241 states and 50873 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:49,964 INFO L93 Difference]: Finished difference Result 37496 states and 54268 transitions. [2024-11-23 23:09:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:09:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 23:09:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:50,047 INFO L225 Difference]: With dead ends: 37496 [2024-11-23 23:09:50,048 INFO L226 Difference]: Without dead ends: 35992 [2024-11-23 23:09:50,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:09:50,057 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 1060 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 4582 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 4803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 4582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:50,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1506 Invalid, 4803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 4582 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:09:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35992 states. [2024-11-23 23:09:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35992 to 35992. [2024-11-23 23:09:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.4345651569880522) internal successors, (51630), 35991 states have internal predecessors, (51630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 51630 transitions. [2024-11-23 23:09:51,287 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 51630 transitions. Word has length 95 [2024-11-23 23:09:51,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:51,287 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 51630 transitions. [2024-11-23 23:09:51,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:51,291 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 51630 transitions. [2024-11-23 23:09:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:09:51,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:51,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:51,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:09:51,309 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:51,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:51,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-11-23 23:09:51,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:09:51,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426128789] [2024-11-23 23:09:51,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:09:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:09:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:09:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426128789] [2024-11-23 23:09:52,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426128789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:09:52,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:09:52,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:09:52,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659159877] [2024-11-23 23:09:52,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:09:52,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:09:52,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:09:52,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:09:52,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:09:52,256 INFO L87 Difference]: Start difference. First operand 35992 states and 51630 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:09:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:57,234 INFO L93 Difference]: Finished difference Result 301994 states and 433719 transitions. [2024-11-23 23:09:57,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:09:57,235 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-23 23:09:57,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:57,955 INFO L225 Difference]: With dead ends: 301994 [2024-11-23 23:09:57,955 INFO L226 Difference]: Without dead ends: 278440 [2024-11-23 23:09:58,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:09:58,014 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11802 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:58,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 5167 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:09:58,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278440 states. [2024-11-23 23:10:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278440 to 64664. [2024-11-23 23:10:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64664 states, 64662 states have (on average 1.4299279329436145) internal successors, (92462), 64663 states have internal predecessors, (92462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:10:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64664 states to 64664 states and 92462 transitions. [2024-11-23 23:10:02,062 INFO L78 Accepts]: Start accepts. Automaton has 64664 states and 92462 transitions. Word has length 121 [2024-11-23 23:10:02,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:02,063 INFO L471 AbstractCegarLoop]: Abstraction has 64664 states and 92462 transitions. [2024-11-23 23:10:02,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:10:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 64664 states and 92462 transitions. [2024-11-23 23:10:02,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:10:02,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:02,074 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:02,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:10:02,074 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:02,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:02,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-11-23 23:10:02,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:02,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248304175] [2024-11-23 23:10:02,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:02,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 23:10:02,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248304175] [2024-11-23 23:10:02,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248304175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:02,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:02,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:10:02,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109176321] [2024-11-23 23:10:02,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:02,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:10:02,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:02,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:10:02,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:10:02,576 INFO L87 Difference]: Start difference. First operand 64664 states and 92462 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:10:09,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:09,152 INFO L93 Difference]: Finished difference Result 335658 states and 481847 transitions. [2024-11-23 23:10:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:10:09,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-23 23:10:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:09,579 INFO L225 Difference]: With dead ends: 335658 [2024-11-23 23:10:09,579 INFO L226 Difference]: Without dead ends: 301992 [2024-11-23 23:10:09,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:10:09,626 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11806 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11806 SdHoareTripleChecker+Valid, 5075 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:09,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11806 Valid, 5075 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:10:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301992 states. [2024-11-23 23:10:15,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301992 to 110104. [2024-11-23 23:10:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110104 states, 110102 states have (on average 1.4268768959691922) internal successors, (157102), 110103 states have internal predecessors, (157102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:10:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110104 states to 110104 states and 157102 transitions. [2024-11-23 23:10:15,201 INFO L78 Accepts]: Start accepts. Automaton has 110104 states and 157102 transitions. Word has length 121 [2024-11-23 23:10:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:15,202 INFO L471 AbstractCegarLoop]: Abstraction has 110104 states and 157102 transitions. [2024-11-23 23:10:15,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:10:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 110104 states and 157102 transitions. [2024-11-23 23:10:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:10:15,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:15,213 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:15,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:10:15,213 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:10:15,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:15,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-11-23 23:10:15,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:15,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633832842] [2024-11-23 23:10:15,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:10:15,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:15,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633832842] [2024-11-23 23:10:15,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633832842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:10:15,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:10:15,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:10:15,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909544311] [2024-11-23 23:10:15,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:10:15,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:10:15,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:15,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:10:15,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:10:15,567 INFO L87 Difference]: Start difference. First operand 110104 states and 157102 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:10:24,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:24,037 INFO L93 Difference]: Finished difference Result 369322 states and 529847 transitions. [2024-11-23 23:10:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:10:24,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-23 23:10:24,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:24,570 INFO L225 Difference]: With dead ends: 369322 [2024-11-23 23:10:24,570 INFO L226 Difference]: Without dead ends: 335656 [2024-11-23 23:10:24,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:10:24,619 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 11850 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11850 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:24,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11850 Valid, 5093 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:10:24,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335656 states.