./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd --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 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:58:58,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:58:58,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:58:58,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:58:58,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:58:58,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:58:58,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:58:58,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:58:58,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:58:58,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:58:58,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:58:58,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:58:58,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:58:58,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:58:58,256 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:58:58,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:58:58,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:58:58,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:58:58,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:58:58,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:58:58,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:58:58,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:58:58,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:58:58,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:58:58,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:58:58,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:58:58,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:58:58,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:58:58,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:58:58,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:58:58,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:58:58,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:58:58,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:58:58,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:58:58,261 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_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd 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 -> 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 [2024-11-13 14:58:58,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:58:58,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:58:58,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:58:58,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:58:58,704 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:58:58,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i Unable to find full path for "g++" [2024-11-13 14:59:01,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:59:01,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:59:01,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-13 14:59:01,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/data/c49b2b062/caa6d94402d145db87f80ac340403f32/FLAG53743210c [2024-11-13 14:59:01,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/data/c49b2b062/caa6d94402d145db87f80ac340403f32 [2024-11-13 14:59:01,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:59:01,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:59:01,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:59:01,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:59:01,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:59:01,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:01,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f143df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01, skipping insertion in model container [2024-11-13 14:59:01,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:01,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:59:01,768 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_4630f021-9ac2-4065-a7f3-b65ce6f80d48/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-11-13 14:59:01,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:59:01,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:59:01,926 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_4630f021-9ac2-4065-a7f3-b65ce6f80d48/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-11-13 14:59:01,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:59:01,992 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:59:01,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01 WrapperNode [2024-11-13 14:59:01,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:59:01,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:59:01,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:59:01,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:59:02,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,094 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-13 14:59:02,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:59:02,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:59:02,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:59:02,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:59:02,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,173 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2024-11-13 14:59:02,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:59:02,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:59:02,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:59:02,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:59:02,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (1/1) ... [2024-11-13 14:59:02,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:59:02,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:59:02,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:59:02,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:59:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 14:59:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:59:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:59:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:59:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:59:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:59:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:59:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:59:02,572 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:59:02,575 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:59:03,512 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-13 14:59:03,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:59:03,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:59:03,576 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:59:03,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:59:03 BoogieIcfgContainer [2024-11-13 14:59:03,578 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:59:03,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:59:03,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:59:03,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:59:03,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:59:01" (1/3) ... [2024-11-13 14:59:03,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200c2b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:59:03, skipping insertion in model container [2024-11-13 14:59:03,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:59:01" (2/3) ... [2024-11-13 14:59:03,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200c2b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:59:03, skipping insertion in model container [2024-11-13 14:59:03,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:59:03" (3/3) ... [2024-11-13 14:59:03,592 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-13 14:59:03,614 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:59:03,617 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-32.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:59:03,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:59:03,729 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;@770f06b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:59:03,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:59:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 14:59:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 14:59:03,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:03,757 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:03,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:03,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1626003658, now seen corresponding path program 1 times [2024-11-13 14:59:03,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:03,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985939310] [2024-11-13 14:59:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:03,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:04,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:04,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985939310] [2024-11-13 14:59:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985939310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:59:04,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464427502] [2024-11-13 14:59:04,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:04,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:59:04,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:04,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:59:04,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:59:04,369 INFO L87 Difference]: Start difference. First operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 14:59:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:04,403 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-13 14:59:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:59:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2024-11-13 14:59:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:04,413 INFO L225 Difference]: With dead ends: 191 [2024-11-13 14:59:04,413 INFO L226 Difference]: Without dead ends: 95 [2024-11-13 14:59:04,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:59:04,421 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:04,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:59:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-13 14:59:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-13 14:59:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 14:59:04,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-13 14:59:04,477 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 129 [2024-11-13 14:59:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:04,477 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-13 14:59:04,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 14:59:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-13 14:59:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 14:59:04,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:04,482 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:04,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:59:04,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:04,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash 575282086, now seen corresponding path program 1 times [2024-11-13 14:59:04,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:04,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463888166] [2024-11-13 14:59:04,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:04,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:05,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463888166] [2024-11-13 14:59:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463888166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:05,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:05,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:59:05,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092598494] [2024-11-13 14:59:05,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:05,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:59:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:05,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:59:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:59:05,373 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 14:59:05,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:05,704 INFO L93 Difference]: Finished difference Result 318 states and 444 transitions. [2024-11-13 14:59:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:59:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-11-13 14:59:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:05,711 INFO L225 Difference]: With dead ends: 318 [2024-11-13 14:59:05,714 INFO L226 Difference]: Without dead ends: 226 [2024-11-13 14:59:05,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:59:05,716 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 213 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:05,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 368 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:59:05,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-13 14:59:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2024-11-13 14:59:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 154 states have internal predecessors, (198), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 14:59:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 270 transitions. [2024-11-13 14:59:05,771 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 270 transitions. Word has length 129 [2024-11-13 14:59:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:05,771 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 270 transitions. [2024-11-13 14:59:05,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 14:59:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 270 transitions. [2024-11-13 14:59:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 14:59:05,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:05,779 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:05,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:59:05,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:05,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -389196608, now seen corresponding path program 1 times [2024-11-13 14:59:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:05,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935827884] [2024-11-13 14:59:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:08,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:08,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935827884] [2024-11-13 14:59:08,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935827884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:08,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:08,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 14:59:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832456597] [2024-11-13 14:59:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:08,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:59:08,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:59:08,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:59:08,300 INFO L87 Difference]: Start difference. First operand 193 states and 270 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 14:59:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:09,678 INFO L93 Difference]: Finished difference Result 543 states and 762 transitions. [2024-11-13 14:59:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:59:09,679 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-13 14:59:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:09,683 INFO L225 Difference]: With dead ends: 543 [2024-11-13 14:59:09,683 INFO L226 Difference]: Without dead ends: 353 [2024-11-13 14:59:09,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:59:09,686 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 232 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:09,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 706 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:59:09,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-13 14:59:09,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2024-11-13 14:59:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 286 states have internal predecessors, (369), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 14:59:09,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 489 transitions. [2024-11-13 14:59:09,755 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 489 transitions. Word has length 137 [2024-11-13 14:59:09,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:09,756 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 489 transitions. [2024-11-13 14:59:09,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 14:59:09,757 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 489 transitions. [2024-11-13 14:59:09,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 14:59:09,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:09,760 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:09,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:59:09,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:09,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:09,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1372610215, now seen corresponding path program 1 times [2024-11-13 14:59:09,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:09,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412228871] [2024-11-13 14:59:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:09,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:16,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412228871] [2024-11-13 14:59:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412228871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:16,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:16,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-13 14:59:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455629039] [2024-11-13 14:59:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:16,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 14:59:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 14:59:16,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:59:16,529 INFO L87 Difference]: Start difference. First operand 349 states and 489 transitions. Second operand has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 14:59:27,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:27,908 INFO L93 Difference]: Finished difference Result 860 states and 1188 transitions. [2024-11-13 14:59:27,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:59:27,909 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 139 [2024-11-13 14:59:27,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:27,915 INFO L225 Difference]: With dead ends: 860 [2024-11-13 14:59:27,916 INFO L226 Difference]: Without dead ends: 514 [2024-11-13 14:59:27,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=234, Invalid=1098, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 14:59:27,919 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 751 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:27,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1280 Invalid, 1802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-13 14:59:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-13 14:59:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 447. [2024-11-13 14:59:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 359 states have (on average 1.2785515320334262) internal successors, (459), 363 states have internal predecessors, (459), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-13 14:59:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 619 transitions. [2024-11-13 14:59:28,038 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 619 transitions. Word has length 139 [2024-11-13 14:59:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:28,039 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 619 transitions. [2024-11-13 14:59:28,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 14:59:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 619 transitions. [2024-11-13 14:59:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 14:59:28,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:28,043 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:28,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:59:28,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:28,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:28,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1210275371, now seen corresponding path program 1 times [2024-11-13 14:59:28,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:28,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791780271] [2024-11-13 14:59:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:28,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:28,388 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:28,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:28,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791780271] [2024-11-13 14:59:28,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791780271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:28,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:28,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:59:28,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248407252] [2024-11-13 14:59:28,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:28,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:59:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:28,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:59:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:59:28,391 INFO L87 Difference]: Start difference. First operand 447 states and 619 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 14:59:28,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:28,534 INFO L93 Difference]: Finished difference Result 889 states and 1230 transitions. [2024-11-13 14:59:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:59:28,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-11-13 14:59:28,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:28,543 INFO L225 Difference]: With dead ends: 889 [2024-11-13 14:59:28,544 INFO L226 Difference]: Without dead ends: 462 [2024-11-13 14:59:28,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:59:28,549 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:28,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:59:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-13 14:59:28,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-11-13 14:59:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 374 states have (on average 1.267379679144385) internal successors, (474), 378 states have internal predecessors, (474), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-13 14:59:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 634 transitions. [2024-11-13 14:59:28,658 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 634 transitions. Word has length 139 [2024-11-13 14:59:28,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:28,659 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 634 transitions. [2024-11-13 14:59:28,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 14:59:28,659 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 634 transitions. [2024-11-13 14:59:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 14:59:28,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:28,662 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:28,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:59:28,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:28,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash -704757593, now seen corresponding path program 1 times [2024-11-13 14:59:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:28,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546227312] [2024-11-13 14:59:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:31,527 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:31,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:31,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546227312] [2024-11-13 14:59:31,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546227312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:31,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:31,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 14:59:31,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168801426] [2024-11-13 14:59:31,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:31,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:59:31,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:31,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:59:31,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:59:31,530 INFO L87 Difference]: Start difference. First operand 462 states and 634 transitions. Second operand has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 14:59:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:35,116 INFO L93 Difference]: Finished difference Result 991 states and 1348 transitions. [2024-11-13 14:59:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:59:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-11-13 14:59:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:35,126 INFO L225 Difference]: With dead ends: 991 [2024-11-13 14:59:35,127 INFO L226 Difference]: Without dead ends: 549 [2024-11-13 14:59:35,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:59:35,133 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 404 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:35,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1383 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 14:59:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-13 14:59:35,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 376. [2024-11-13 14:59:35,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 309 states have (on average 1.2750809061488673) internal successors, (394), 311 states have internal predecessors, (394), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 14:59:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 514 transitions. [2024-11-13 14:59:35,253 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 514 transitions. Word has length 139 [2024-11-13 14:59:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:35,255 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 514 transitions. [2024-11-13 14:59:35,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 14:59:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 514 transitions. [2024-11-13 14:59:35,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:35,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:35,259 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:35,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:59:35,259 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:35,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:35,260 INFO L85 PathProgramCache]: Analyzing trace with hash -617511186, now seen corresponding path program 1 times [2024-11-13 14:59:35,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:35,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515522772] [2024-11-13 14:59:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:38,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:38,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515522772] [2024-11-13 14:59:38,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515522772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:38,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:38,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-13 14:59:38,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193034092] [2024-11-13 14:59:38,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:38,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 14:59:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:38,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 14:59:38,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:59:38,866 INFO L87 Difference]: Start difference. First operand 376 states and 514 transitions. Second operand has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 14:59:47,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 14:59:49,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 14:59:51,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:59:51,474 INFO L93 Difference]: Finished difference Result 740 states and 1003 transitions. [2024-11-13 14:59:51,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 14:59:51,475 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-11-13 14:59:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:59:51,483 INFO L225 Difference]: With dead ends: 740 [2024-11-13 14:59:51,483 INFO L226 Difference]: Without dead ends: 567 [2024-11-13 14:59:51,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=217, Invalid=839, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:59:51,487 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 425 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:59:51,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1340 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-11-13 14:59:51,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-13 14:59:51,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 446. [2024-11-13 14:59:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 365 states have (on average 1.2657534246575342) internal successors, (462), 368 states have internal predecessors, (462), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 14:59:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 606 transitions. [2024-11-13 14:59:51,627 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 606 transitions. Word has length 140 [2024-11-13 14:59:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:59:51,627 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 606 transitions. [2024-11-13 14:59:51,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 14:59:51,628 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 606 transitions. [2024-11-13 14:59:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 14:59:51,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:59:51,632 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:59:51,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:59:51,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:59:51,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:59:51,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1945734208, now seen corresponding path program 1 times [2024-11-13 14:59:51,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:59:51,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114310921] [2024-11-13 14:59:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:59:51,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:59:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:59:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:59:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:59:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:59:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:59:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:59:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:59:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:59:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:59:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:59:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:59:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:59:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:59:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:59:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:59:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:59:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:59:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:59:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:59:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 14:59:54,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:59:54,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114310921] [2024-11-13 14:59:54,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114310921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:59:54,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:59:54,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-13 14:59:54,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426780617] [2024-11-13 14:59:54,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:59:54,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 14:59:54,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:54,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 14:59:54,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:59:54,953 INFO L87 Difference]: Start difference. First operand 446 states and 606 transitions. Second operand has 20 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 15:00:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:00,426 INFO L93 Difference]: Finished difference Result 870 states and 1183 transitions. [2024-11-13 15:00:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 15:00:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-11-13 15:00:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:00,436 INFO L225 Difference]: With dead ends: 870 [2024-11-13 15:00:00,436 INFO L226 Difference]: Without dead ends: 631 [2024-11-13 15:00:00,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 15:00:00,439 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 486 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:00,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1253 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 15:00:00,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-13 15:00:00,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 466. [2024-11-13 15:00:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 385 states have (on average 1.2753246753246754) internal successors, (491), 388 states have internal predecessors, (491), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 15:00:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 635 transitions. [2024-11-13 15:00:00,589 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 635 transitions. Word has length 140 [2024-11-13 15:00:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:00,590 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 635 transitions. [2024-11-13 15:00:00,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 15:00:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 635 transitions. [2024-11-13 15:00:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 15:00:00,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:00,597 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:00,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:00:00,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:00,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:00,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1211583184, now seen corresponding path program 1 times [2024-11-13 15:00:00,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:00,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137647248] [2024-11-13 15:00:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:00,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:02,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:02,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137647248] [2024-11-13 15:00:02,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137647248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:02,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:02,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:02,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242200705] [2024-11-13 15:00:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:02,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:02,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:02,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:02,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:02,415 INFO L87 Difference]: Start difference. First operand 466 states and 635 transitions. Second operand has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:05,176 INFO L93 Difference]: Finished difference Result 1069 states and 1445 transitions. [2024-11-13 15:00:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:00:05,177 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-13 15:00:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:05,181 INFO L225 Difference]: With dead ends: 1069 [2024-11-13 15:00:05,182 INFO L226 Difference]: Without dead ends: 606 [2024-11-13 15:00:05,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:00:05,185 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 442 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:05,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1053 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:00:05,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-13 15:00:05,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 484. [2024-11-13 15:00:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 403 states have (on average 1.2754342431761787) internal successors, (514), 406 states have internal predecessors, (514), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 15:00:05,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 658 transitions. [2024-11-13 15:00:05,335 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 658 transitions. Word has length 141 [2024-11-13 15:00:05,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:05,336 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 658 transitions. [2024-11-13 15:00:05,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 658 transitions. [2024-11-13 15:00:05,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 15:00:05,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:05,339 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:05,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:00:05,339 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:05,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:05,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1894274833, now seen corresponding path program 1 times [2024-11-13 15:00:05,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:05,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219638979] [2024-11-13 15:00:05,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:05,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:05,930 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:05,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:05,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219638979] [2024-11-13 15:00:05,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219638979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:05,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:05,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:00:05,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017117120] [2024-11-13 15:00:05,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:05,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:00:05,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:05,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:00:05,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:05,934 INFO L87 Difference]: Start difference. First operand 484 states and 658 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:06,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:06,340 INFO L93 Difference]: Finished difference Result 761 states and 1009 transitions. [2024-11-13 15:00:06,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:00:06,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-13 15:00:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:06,346 INFO L225 Difference]: With dead ends: 761 [2024-11-13 15:00:06,346 INFO L226 Difference]: Without dead ends: 759 [2024-11-13 15:00:06,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:06,347 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 51 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:06,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 810 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:00:06,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-13 15:00:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 752. [2024-11-13 15:00:06,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 646 states have (on average 1.258513931888545) internal successors, (813), 654 states have internal predecessors, (813), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 84 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 15:00:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 997 transitions. [2024-11-13 15:00:06,555 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 997 transitions. Word has length 141 [2024-11-13 15:00:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:06,559 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 997 transitions. [2024-11-13 15:00:06,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 997 transitions. [2024-11-13 15:00:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 15:00:06,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:06,562 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:06,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:00:06,562 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:06,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:06,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1359293611, now seen corresponding path program 1 times [2024-11-13 15:00:06,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:06,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139616831] [2024-11-13 15:00:06,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:06,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:10,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:10,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139616831] [2024-11-13 15:00:10,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139616831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:10,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:10,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-13 15:00:10,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124152668] [2024-11-13 15:00:10,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:10,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 15:00:10,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:10,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:00:10,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:00:10,240 INFO L87 Difference]: Start difference. First operand 752 states and 997 transitions. Second operand has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:15,069 INFO L93 Difference]: Finished difference Result 1701 states and 2247 transitions. [2024-11-13 15:00:15,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 15:00:15,070 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-13 15:00:15,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:15,081 INFO L225 Difference]: With dead ends: 1701 [2024-11-13 15:00:15,081 INFO L226 Difference]: Without dead ends: 952 [2024-11-13 15:00:15,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 15:00:15,085 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 544 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:15,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1123 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 15:00:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-13 15:00:15,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 809. [2024-11-13 15:00:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 689 states have (on average 1.2467343976777938) internal successors, (859), 698 states have internal predecessors, (859), 104 states have call successors, (104), 15 states have call predecessors, (104), 15 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-13 15:00:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1067 transitions. [2024-11-13 15:00:15,330 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1067 transitions. Word has length 141 [2024-11-13 15:00:15,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:15,331 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1067 transitions. [2024-11-13 15:00:15,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1067 transitions. [2024-11-13 15:00:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 15:00:15,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:15,333 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:15,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:00:15,334 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:15,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:15,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1233785650, now seen corresponding path program 1 times [2024-11-13 15:00:15,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:15,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559813031] [2024-11-13 15:00:15,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:15,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:16,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:17,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:17,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559813031] [2024-11-13 15:00:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559813031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:17,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-13 15:00:17,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826109287] [2024-11-13 15:00:17,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:17,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 15:00:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:17,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 15:00:17,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:00:17,006 INFO L87 Difference]: Start difference. First operand 809 states and 1067 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:19,233 INFO L93 Difference]: Finished difference Result 1687 states and 2221 transitions. [2024-11-13 15:00:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 15:00:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-13 15:00:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:19,240 INFO L225 Difference]: With dead ends: 1687 [2024-11-13 15:00:19,240 INFO L226 Difference]: Without dead ends: 881 [2024-11-13 15:00:19,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 15:00:19,244 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 173 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:19,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1659 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:00:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-13 15:00:19,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 801. [2024-11-13 15:00:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 681 states have (on average 1.2437591776798824) internal successors, (847), 690 states have internal predecessors, (847), 104 states have call successors, (104), 15 states have call predecessors, (104), 15 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-13 15:00:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1055 transitions. [2024-11-13 15:00:19,482 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1055 transitions. Word has length 141 [2024-11-13 15:00:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:19,482 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1055 transitions. [2024-11-13 15:00:19,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:19,483 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1055 transitions. [2024-11-13 15:00:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:00:19,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:19,485 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:19,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:00:19,485 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:19,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1837164471, now seen corresponding path program 1 times [2024-11-13 15:00:19,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:19,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423436323] [2024-11-13 15:00:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:19,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:19,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:19,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423436323] [2024-11-13 15:00:19,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423436323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:19,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:19,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:00:19,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847903581] [2024-11-13 15:00:19,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:19,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:00:19,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:00:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:19,976 INFO L87 Difference]: Start difference. First operand 801 states and 1055 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:20,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:20,477 INFO L93 Difference]: Finished difference Result 1612 states and 2129 transitions. [2024-11-13 15:00:20,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:00:20,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-11-13 15:00:20,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:20,485 INFO L225 Difference]: With dead ends: 1612 [2024-11-13 15:00:20,485 INFO L226 Difference]: Without dead ends: 1138 [2024-11-13 15:00:20,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:20,488 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 74 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:20,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1008 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:00:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-13 15:00:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1061. [2024-11-13 15:00:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 917 states have (on average 1.2540894220283534) internal successors, (1150), 930 states have internal predecessors, (1150), 124 states have call successors, (124), 19 states have call predecessors, (124), 19 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-13 15:00:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1398 transitions. [2024-11-13 15:00:20,776 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1398 transitions. Word has length 142 [2024-11-13 15:00:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:20,777 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1398 transitions. [2024-11-13 15:00:20,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1398 transitions. [2024-11-13 15:00:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-13 15:00:20,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:20,782 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:20,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:00:20,782 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:20,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1266133533, now seen corresponding path program 1 times [2024-11-13 15:00:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:20,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821018599] [2024-11-13 15:00:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:20,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:21,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821018599] [2024-11-13 15:00:21,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821018599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:21,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:21,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:00:21,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786820911] [2024-11-13 15:00:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:21,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:00:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:00:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:21,250 INFO L87 Difference]: Start difference. First operand 1061 states and 1398 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:22,023 INFO L93 Difference]: Finished difference Result 2595 states and 3414 transitions. [2024-11-13 15:00:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:00:22,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-13 15:00:22,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:22,034 INFO L225 Difference]: With dead ends: 2595 [2024-11-13 15:00:22,034 INFO L226 Difference]: Without dead ends: 1537 [2024-11-13 15:00:22,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:22,038 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 74 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:22,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 575 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:00:22,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2024-11-13 15:00:22,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1232. [2024-11-13 15:00:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1088 states have (on average 1.2472426470588236) internal successors, (1357), 1101 states have internal predecessors, (1357), 124 states have call successors, (124), 19 states have call predecessors, (124), 19 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-13 15:00:22,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1605 transitions. [2024-11-13 15:00:22,340 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1605 transitions. Word has length 143 [2024-11-13 15:00:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:22,341 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1605 transitions. [2024-11-13 15:00:22,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:22,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1605 transitions. [2024-11-13 15:00:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-13 15:00:22,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:22,345 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:22,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:00:22,345 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:22,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:22,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1885224730, now seen corresponding path program 1 times [2024-11-13 15:00:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:22,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153535309] [2024-11-13 15:00:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:22,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:22,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153535309] [2024-11-13 15:00:22,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153535309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:22,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:22,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:00:22,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708539400] [2024-11-13 15:00:22,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:22,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:00:22,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:22,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:00:22,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:00:22,606 INFO L87 Difference]: Start difference. First operand 1232 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:22,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:22,940 INFO L93 Difference]: Finished difference Result 2914 states and 3790 transitions. [2024-11-13 15:00:22,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:00:22,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-13 15:00:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:22,947 INFO L225 Difference]: With dead ends: 2914 [2024-11-13 15:00:22,947 INFO L226 Difference]: Without dead ends: 1685 [2024-11-13 15:00:22,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:22,951 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 46 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:22,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 626 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:00:22,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-13 15:00:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1411. [2024-11-13 15:00:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1267 states have (on average 1.2478295185477506) internal successors, (1581), 1280 states have internal predecessors, (1581), 124 states have call successors, (124), 19 states have call predecessors, (124), 19 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-13 15:00:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1829 transitions. [2024-11-13 15:00:23,277 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1829 transitions. Word has length 143 [2024-11-13 15:00:23,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:23,278 INFO L471 AbstractCegarLoop]: Abstraction has 1411 states and 1829 transitions. [2024-11-13 15:00:23,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:23,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1829 transitions. [2024-11-13 15:00:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 15:00:23,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:23,282 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:23,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:00:23,283 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:23,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:23,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1885949644, now seen corresponding path program 1 times [2024-11-13 15:00:23,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:23,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031309278] [2024-11-13 15:00:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:23,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:23,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:23,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031309278] [2024-11-13 15:00:23,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031309278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:23,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:23,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:00:23,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291891685] [2024-11-13 15:00:23,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:23,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:00:23,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:23,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:00:23,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:23,737 INFO L87 Difference]: Start difference. First operand 1411 states and 1829 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:24,661 INFO L93 Difference]: Finished difference Result 2955 states and 3829 transitions. [2024-11-13 15:00:24,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:00:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-13 15:00:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:24,671 INFO L225 Difference]: With dead ends: 2955 [2024-11-13 15:00:24,671 INFO L226 Difference]: Without dead ends: 1547 [2024-11-13 15:00:24,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:24,676 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:24,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 570 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:00:24,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-13 15:00:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1144. [2024-11-13 15:00:25,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 985 states have (on average 1.2416243654822334) internal successors, (1223), 995 states have internal predecessors, (1223), 136 states have call successors, (136), 22 states have call predecessors, (136), 22 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-13 15:00:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1495 transitions. [2024-11-13 15:00:25,143 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1495 transitions. Word has length 144 [2024-11-13 15:00:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:25,144 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1495 transitions. [2024-11-13 15:00:25,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1495 transitions. [2024-11-13 15:00:25,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 15:00:25,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:25,147 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:25,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:00:25,147 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:25,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:25,148 INFO L85 PathProgramCache]: Analyzing trace with hash -810897989, now seen corresponding path program 1 times [2024-11-13 15:00:25,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:25,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381857068] [2024-11-13 15:00:25,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:25,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:25,480 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:25,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:25,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381857068] [2024-11-13 15:00:25,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381857068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:25,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:25,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:00:25,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072953825] [2024-11-13 15:00:25,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:25,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:00:25,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:00:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:25,485 INFO L87 Difference]: Start difference. First operand 1144 states and 1495 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:25,779 INFO L93 Difference]: Finished difference Result 2360 states and 3074 transitions. [2024-11-13 15:00:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:00:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-13 15:00:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:25,787 INFO L225 Difference]: With dead ends: 2360 [2024-11-13 15:00:25,787 INFO L226 Difference]: Without dead ends: 1219 [2024-11-13 15:00:25,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:25,791 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:25,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 742 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:00:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-13 15:00:26,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1163. [2024-11-13 15:00:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1004 states have (on average 1.2370517928286853) internal successors, (1242), 1014 states have internal predecessors, (1242), 136 states have call successors, (136), 22 states have call predecessors, (136), 22 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-13 15:00:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1514 transitions. [2024-11-13 15:00:26,166 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1514 transitions. Word has length 144 [2024-11-13 15:00:26,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:26,167 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1514 transitions. [2024-11-13 15:00:26,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1514 transitions. [2024-11-13 15:00:26,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 15:00:26,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:26,170 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:26,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:00:26,170 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:26,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash -417870979, now seen corresponding path program 1 times [2024-11-13 15:00:26,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:26,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163119735] [2024-11-13 15:00:26,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:26,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163119735] [2024-11-13 15:00:26,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163119735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:26,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:26,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:00:26,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511956060] [2024-11-13 15:00:26,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:26,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:00:26,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:00:26,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:00:26,407 INFO L87 Difference]: Start difference. First operand 1163 states and 1514 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:26,761 INFO L93 Difference]: Finished difference Result 1937 states and 2529 transitions. [2024-11-13 15:00:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:00:26,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-13 15:00:26,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:26,767 INFO L225 Difference]: With dead ends: 1937 [2024-11-13 15:00:26,767 INFO L226 Difference]: Without dead ends: 1190 [2024-11-13 15:00:26,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:26,769 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 40 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:26,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 620 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:00:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2024-11-13 15:00:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1146. [2024-11-13 15:00:27,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 987 states have (on average 1.232016210739615) internal successors, (1216), 997 states have internal predecessors, (1216), 136 states have call successors, (136), 22 states have call predecessors, (136), 22 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-13 15:00:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1488 transitions. [2024-11-13 15:00:27,108 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1488 transitions. Word has length 144 [2024-11-13 15:00:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:27,109 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1488 transitions. [2024-11-13 15:00:27,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1488 transitions. [2024-11-13 15:00:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 15:00:27,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:27,111 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:27,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:00:27,111 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:27,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:27,112 INFO L85 PathProgramCache]: Analyzing trace with hash 87148152, now seen corresponding path program 1 times [2024-11-13 15:00:27,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:27,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236607725] [2024-11-13 15:00:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:27,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:27,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236607725] [2024-11-13 15:00:27,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236607725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:27,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:27,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:00:27,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120764138] [2024-11-13 15:00:27,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:27,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:00:27,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:27,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:00:27,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:27,854 INFO L87 Difference]: Start difference. First operand 1146 states and 1488 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:28,929 INFO L93 Difference]: Finished difference Result 2269 states and 2935 transitions. [2024-11-13 15:00:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:00:28,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-13 15:00:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:28,938 INFO L225 Difference]: With dead ends: 2269 [2024-11-13 15:00:28,938 INFO L226 Difference]: Without dead ends: 1126 [2024-11-13 15:00:28,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:00:28,941 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 156 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:28,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 383 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:00:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-13 15:00:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 998. [2024-11-13 15:00:29,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 862 states have (on average 1.2238979118329467) internal successors, (1055), 870 states have internal predecessors, (1055), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 15:00:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1287 transitions. [2024-11-13 15:00:29,270 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1287 transitions. Word has length 145 [2024-11-13 15:00:29,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:29,270 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1287 transitions. [2024-11-13 15:00:29,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1287 transitions. [2024-11-13 15:00:29,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 15:00:29,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:29,273 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:29,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:00:29,274 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:29,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash 73864428, now seen corresponding path program 1 times [2024-11-13 15:00:29,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:29,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450928209] [2024-11-13 15:00:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:29,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:29,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:29,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450928209] [2024-11-13 15:00:29,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450928209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:29,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:29,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:00:29,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415172931] [2024-11-13 15:00:29,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:29,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:00:29,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:29,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:00:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:00:29,857 INFO L87 Difference]: Start difference. First operand 998 states and 1287 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:30,583 INFO L93 Difference]: Finished difference Result 1891 states and 2439 transitions. [2024-11-13 15:00:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:00:30,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-13 15:00:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:30,591 INFO L225 Difference]: With dead ends: 1891 [2024-11-13 15:00:30,592 INFO L226 Difference]: Without dead ends: 1295 [2024-11-13 15:00:30,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:00:30,594 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 70 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:30,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1197 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:00:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-13 15:00:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1096. [2024-11-13 15:00:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 960 states have (on average 1.2364583333333334) internal successors, (1187), 968 states have internal predecessors, (1187), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 15:00:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1419 transitions. [2024-11-13 15:00:30,914 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1419 transitions. Word has length 145 [2024-11-13 15:00:30,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:30,915 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1419 transitions. [2024-11-13 15:00:30,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1419 transitions. [2024-11-13 15:00:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 15:00:30,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:30,917 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:30,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:00:30,918 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:30,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1731573906, now seen corresponding path program 1 times [2024-11-13 15:00:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940941766] [2024-11-13 15:00:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:31,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:31,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940941766] [2024-11-13 15:00:31,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940941766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:31,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:31,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:00:31,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391562234] [2024-11-13 15:00:31,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:31,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:00:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:00:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:00:31,186 INFO L87 Difference]: Start difference. First operand 1096 states and 1419 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:31,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:31,625 INFO L93 Difference]: Finished difference Result 2322 states and 2992 transitions. [2024-11-13 15:00:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:00:31,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-13 15:00:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:31,632 INFO L225 Difference]: With dead ends: 2322 [2024-11-13 15:00:31,632 INFO L226 Difference]: Without dead ends: 1229 [2024-11-13 15:00:31,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:31,635 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 43 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:31,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 620 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:00:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-13 15:00:31,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1089. [2024-11-13 15:00:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 953 states have (on average 1.2329485834207765) internal successors, (1175), 961 states have internal predecessors, (1175), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 15:00:31,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1407 transitions. [2024-11-13 15:00:31,967 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1407 transitions. Word has length 145 [2024-11-13 15:00:31,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:31,967 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1407 transitions. [2024-11-13 15:00:31,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1407 transitions. [2024-11-13 15:00:31,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 15:00:31,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:31,970 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:31,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:00:31,970 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:31,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash -802515394, now seen corresponding path program 1 times [2024-11-13 15:00:31,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:31,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509136679] [2024-11-13 15:00:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:31,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:32,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:32,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509136679] [2024-11-13 15:00:32,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509136679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:32,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:32,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:00:32,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494718544] [2024-11-13 15:00:32,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:32,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:00:32,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:32,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:00:32,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:32,681 INFO L87 Difference]: Start difference. First operand 1089 states and 1407 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:33,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:33,714 INFO L93 Difference]: Finished difference Result 2440 states and 3134 transitions. [2024-11-13 15:00:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:00:33,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-13 15:00:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:33,723 INFO L225 Difference]: With dead ends: 2440 [2024-11-13 15:00:33,723 INFO L226 Difference]: Without dead ends: 1354 [2024-11-13 15:00:33,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:00:33,728 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 205 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:33,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 361 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:00:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-11-13 15:00:34,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1122. [2024-11-13 15:00:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 967 states have (on average 1.2119958634953465) internal successors, (1172), 977 states have internal predecessors, (1172), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 122 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-13 15:00:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1436 transitions. [2024-11-13 15:00:34,125 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1436 transitions. Word has length 145 [2024-11-13 15:00:34,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:34,125 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1436 transitions. [2024-11-13 15:00:34,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1436 transitions. [2024-11-13 15:00:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 15:00:34,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:34,129 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:34,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:00:34,129 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:34,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1573814106, now seen corresponding path program 1 times [2024-11-13 15:00:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290733255] [2024-11-13 15:00:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:34,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:35,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290733255] [2024-11-13 15:00:35,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290733255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:35,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:35,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:00:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992070665] [2024-11-13 15:00:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:35,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:00:35,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:00:35,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:00:35,798 INFO L87 Difference]: Start difference. First operand 1122 states and 1436 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 15:00:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:38,022 INFO L93 Difference]: Finished difference Result 2110 states and 2643 transitions. [2024-11-13 15:00:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 15:00:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2024-11-13 15:00:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:38,031 INFO L225 Difference]: With dead ends: 2110 [2024-11-13 15:00:38,031 INFO L226 Difference]: Without dead ends: 2108 [2024-11-13 15:00:38,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=1062, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 15:00:38,033 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 305 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:38,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1203 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:00:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-13 15:00:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 1580. [2024-11-13 15:00:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1395 states have (on average 1.1935483870967742) internal successors, (1665), 1411 states have internal predecessors, (1665), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 15:00:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 1977 transitions. [2024-11-13 15:00:38,435 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 1977 transitions. Word has length 147 [2024-11-13 15:00:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:38,435 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 1977 transitions. [2024-11-13 15:00:38,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 15:00:38,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 1977 transitions. [2024-11-13 15:00:38,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 15:00:38,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:38,438 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:38,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:00:38,438 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:38,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:38,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1536954575, now seen corresponding path program 1 times [2024-11-13 15:00:38,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:38,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228662874] [2024-11-13 15:00:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:38,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:39,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:39,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228662874] [2024-11-13 15:00:39,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228662874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:39,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:39,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 15:00:39,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352443433] [2024-11-13 15:00:39,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:39,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:00:39,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:39,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:00:39,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:00:39,326 INFO L87 Difference]: Start difference. First operand 1580 states and 1977 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:40,851 INFO L93 Difference]: Finished difference Result 3514 states and 4384 transitions. [2024-11-13 15:00:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:00:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-13 15:00:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:40,863 INFO L225 Difference]: With dead ends: 3514 [2024-11-13 15:00:40,863 INFO L226 Difference]: Without dead ends: 1937 [2024-11-13 15:00:40,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:00:40,868 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 244 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:40,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 792 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:00:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-13 15:00:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1627. [2024-11-13 15:00:41,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1442 states have (on average 1.1907073509015256) internal successors, (1717), 1458 states have internal predecessors, (1717), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 15:00:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2029 transitions. [2024-11-13 15:00:41,240 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2029 transitions. Word has length 147 [2024-11-13 15:00:41,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:41,241 INFO L471 AbstractCegarLoop]: Abstraction has 1627 states and 2029 transitions. [2024-11-13 15:00:41,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2029 transitions. [2024-11-13 15:00:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 15:00:41,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:41,245 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:41,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:00:41,245 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:41,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:41,245 INFO L85 PathProgramCache]: Analyzing trace with hash 915714856, now seen corresponding path program 1 times [2024-11-13 15:00:41,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:41,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147807612] [2024-11-13 15:00:41,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:41,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:41,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:41,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147807612] [2024-11-13 15:00:41,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147807612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:41,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:41,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:00:41,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481506950] [2024-11-13 15:00:41,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:41,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:00:41,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:41,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:00:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:00:41,469 INFO L87 Difference]: Start difference. First operand 1627 states and 2029 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:42,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:42,024 INFO L93 Difference]: Finished difference Result 3586 states and 4451 transitions. [2024-11-13 15:00:42,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:00:42,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-13 15:00:42,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:42,035 INFO L225 Difference]: With dead ends: 3586 [2024-11-13 15:00:42,035 INFO L226 Difference]: Without dead ends: 1962 [2024-11-13 15:00:42,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:00:42,040 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 31 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:42,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 593 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:00:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-13 15:00:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1864. [2024-11-13 15:00:42,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1679 states have (on average 1.1899940440738535) internal successors, (1998), 1695 states have internal predecessors, (1998), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 15:00:42,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2310 transitions. [2024-11-13 15:00:42,575 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2310 transitions. Word has length 147 [2024-11-13 15:00:42,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:42,576 INFO L471 AbstractCegarLoop]: Abstraction has 1864 states and 2310 transitions. [2024-11-13 15:00:42,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2310 transitions. [2024-11-13 15:00:42,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-13 15:00:42,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:42,577 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:42,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:00:42,577 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:42,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:42,578 INFO L85 PathProgramCache]: Analyzing trace with hash -145541675, now seen corresponding path program 1 times [2024-11-13 15:00:42,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:42,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078187710] [2024-11-13 15:00:42,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:42,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:43,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:43,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078187710] [2024-11-13 15:00:43,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078187710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:43,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:43,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:43,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303323338] [2024-11-13 15:00:43,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:43,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:43,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:43,501 INFO L87 Difference]: Start difference. First operand 1864 states and 2310 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:45,462 INFO L93 Difference]: Finished difference Result 4236 states and 5249 transitions. [2024-11-13 15:00:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:00:45,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-13 15:00:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:45,475 INFO L225 Difference]: With dead ends: 4236 [2024-11-13 15:00:45,475 INFO L226 Difference]: Without dead ends: 2375 [2024-11-13 15:00:45,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:00:45,479 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 261 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:45,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 876 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:00:45,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2024-11-13 15:00:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1735. [2024-11-13 15:00:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1574 states have (on average 1.196315120711563) internal successors, (1883), 1587 states have internal predecessors, (1883), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-13 15:00:45,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2155 transitions. [2024-11-13 15:00:45,890 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2155 transitions. Word has length 148 [2024-11-13 15:00:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:45,891 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2155 transitions. [2024-11-13 15:00:45,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2155 transitions. [2024-11-13 15:00:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-13 15:00:45,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:45,894 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:45,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:00:45,894 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:45,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:45,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1329740290, now seen corresponding path program 1 times [2024-11-13 15:00:45,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:45,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982754358] [2024-11-13 15:00:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:45,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-13 15:00:46,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:46,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982754358] [2024-11-13 15:00:46,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982754358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:00:46,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143982459] [2024-11-13 15:00:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:46,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:00:46,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:46,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:00:46,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:00:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:46,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:00:46,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:47,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:00:47,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-13 15:00:47,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 15:00:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 29 proven. 291 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-13 15:00:47,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:00:47,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143982459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:00:47,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:00:47,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-13 15:00:47,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680263392] [2024-11-13 15:00:47,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:00:47,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:00:47,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:00:47,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:00:47,742 INFO L87 Difference]: Start difference. First operand 1735 states and 2155 transitions. Second operand has 12 states, 10 states have (on average 7.7) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 3 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-13 15:00:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:48,890 INFO L93 Difference]: Finished difference Result 3681 states and 4540 transitions. [2024-11-13 15:00:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:00:48,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.7) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 3 states have call predecessors, (36), 5 states have call successors, (36) Word has length 148 [2024-11-13 15:00:48,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:48,908 INFO L225 Difference]: With dead ends: 3681 [2024-11-13 15:00:48,908 INFO L226 Difference]: Without dead ends: 1949 [2024-11-13 15:00:48,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:00:48,914 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 244 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:48,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1027 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:00:48,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-11-13 15:00:49,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1890. [2024-11-13 15:00:49,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1699 states have (on average 1.175985874043555) internal successors, (1998), 1717 states have internal predecessors, (1998), 156 states have call successors, (156), 34 states have call predecessors, (156), 34 states have return successors, (156), 138 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 15:00:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2310 transitions. [2024-11-13 15:00:49,544 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2310 transitions. Word has length 148 [2024-11-13 15:00:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:49,545 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2310 transitions. [2024-11-13 15:00:49,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.7) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 3 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-13 15:00:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2310 transitions. [2024-11-13 15:00:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-13 15:00:49,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:49,548 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:49,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:00:49,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:00:49,749 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:49,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:49,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1463753796, now seen corresponding path program 1 times [2024-11-13 15:00:49,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:49,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553624324] [2024-11-13 15:00:49,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:49,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:50,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:50,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553624324] [2024-11-13 15:00:50,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553624324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:50,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:50,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:50,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312071482] [2024-11-13 15:00:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:50,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:50,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:50,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:50,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:50,833 INFO L87 Difference]: Start difference. First operand 1890 states and 2310 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-13 15:00:52,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:52,202 INFO L93 Difference]: Finished difference Result 3817 states and 4654 transitions. [2024-11-13 15:00:52,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:00:52,203 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-11-13 15:00:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:52,211 INFO L225 Difference]: With dead ends: 3817 [2024-11-13 15:00:52,212 INFO L226 Difference]: Without dead ends: 1930 [2024-11-13 15:00:52,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:00:52,216 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 330 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:52,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 583 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:00:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2024-11-13 15:00:52,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1780. [2024-11-13 15:00:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1609 states have (on average 1.1796146674953387) internal successors, (1898), 1622 states have internal predecessors, (1898), 136 states have call successors, (136), 34 states have call predecessors, (136), 34 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-13 15:00:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2170 transitions. [2024-11-13 15:00:53,008 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2170 transitions. Word has length 148 [2024-11-13 15:00:53,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:53,008 INFO L471 AbstractCegarLoop]: Abstraction has 1780 states and 2170 transitions. [2024-11-13 15:00:53,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-13 15:00:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2170 transitions. [2024-11-13 15:00:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-13 15:00:53,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:53,010 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 15:00:53,010 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:53,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2021866874, now seen corresponding path program 1 times [2024-11-13 15:00:53,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792570692] [2024-11-13 15:00:53,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:53,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792570692] [2024-11-13 15:00:53,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792570692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:53,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:53,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:00:53,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839232093] [2024-11-13 15:00:53,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:53,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:00:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:53,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:00:53,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:00:53,511 INFO L87 Difference]: Start difference. First operand 1780 states and 2170 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:54,270 INFO L93 Difference]: Finished difference Result 1944 states and 2357 transitions. [2024-11-13 15:00:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:00:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-13 15:00:54,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:54,279 INFO L225 Difference]: With dead ends: 1944 [2024-11-13 15:00:54,279 INFO L226 Difference]: Without dead ends: 1942 [2024-11-13 15:00:54,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:00:54,282 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 50 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:54,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1653 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:00:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2024-11-13 15:00:54,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1785. [2024-11-13 15:00:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1614 states have (on average 1.1790582403965304) internal successors, (1903), 1627 states have internal predecessors, (1903), 136 states have call successors, (136), 34 states have call predecessors, (136), 34 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-13 15:00:54,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2175 transitions. [2024-11-13 15:00:54,893 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2175 transitions. Word has length 148 [2024-11-13 15:00:54,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:54,893 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2175 transitions. [2024-11-13 15:00:54,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:00:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2175 transitions. [2024-11-13 15:00:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-13 15:00:54,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:54,896 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:54,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 15:00:54,896 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:54,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1001389546, now seen corresponding path program 1 times [2024-11-13 15:00:54,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:54,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006774620] [2024-11-13 15:00:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:54,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:55,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006774620] [2024-11-13 15:00:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006774620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:55,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:55,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:00:55,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232983394] [2024-11-13 15:00:55,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:55,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:00:55,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:55,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:00:55,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:00:55,628 INFO L87 Difference]: Start difference. First operand 1785 states and 2175 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:57,008 INFO L93 Difference]: Finished difference Result 3832 states and 4653 transitions. [2024-11-13 15:00:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:00:57,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-13 15:00:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:57,019 INFO L225 Difference]: With dead ends: 3832 [2024-11-13 15:00:57,019 INFO L226 Difference]: Without dead ends: 2050 [2024-11-13 15:00:57,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:00:57,023 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 164 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:57,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 505 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:00:57,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-13 15:00:57,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1185. [2024-11-13 15:00:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1108 states have (on average 1.1850180505415162) internal successors, (1313), 1112 states have internal predecessors, (1313), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:00:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1433 transitions. [2024-11-13 15:00:57,431 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1433 transitions. Word has length 148 [2024-11-13 15:00:57,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:57,432 INFO L471 AbstractCegarLoop]: Abstraction has 1185 states and 1433 transitions. [2024-11-13 15:00:57,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:00:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1433 transitions. [2024-11-13 15:00:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-13 15:00:57,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:57,434 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:00:57,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 15:00:57,434 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:57,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:57,435 INFO L85 PathProgramCache]: Analyzing trace with hash -25935845, now seen corresponding path program 1 times [2024-11-13 15:00:57,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:57,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938581115] [2024-11-13 15:00:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:57,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:00:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:00:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:00:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:00:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:00:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:00:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:00:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:00:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:00:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:00:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:00:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:00:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:00:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:00:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:00:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:00:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:00:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:00:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:00:59,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:00:59,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938581115] [2024-11-13 15:00:59,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938581115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:00:59,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:00:59,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-13 15:00:59,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996082488] [2024-11-13 15:00:59,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:59,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 15:00:59,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:00:59,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 15:00:59,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:00:59,181 INFO L87 Difference]: Start difference. First operand 1185 states and 1433 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:01:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:01,193 INFO L93 Difference]: Finished difference Result 2921 states and 3496 transitions. [2024-11-13 15:01:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:01:01,193 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-13 15:01:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:01,199 INFO L225 Difference]: With dead ends: 2921 [2024-11-13 15:01:01,199 INFO L226 Difference]: Without dead ends: 1739 [2024-11-13 15:01:01,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:01:01,202 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 428 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:01,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 742 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 15:01:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-11-13 15:01:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1367. [2024-11-13 15:01:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1290 states have (on average 1.1744186046511629) internal successors, (1515), 1294 states have internal predecessors, (1515), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:01:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1635 transitions. [2024-11-13 15:01:01,466 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1635 transitions. Word has length 150 [2024-11-13 15:01:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:01,466 INFO L471 AbstractCegarLoop]: Abstraction has 1367 states and 1635 transitions. [2024-11-13 15:01:01,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 15:01:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1635 transitions. [2024-11-13 15:01:01,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 15:01:01,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:01,467 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:01,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 15:01:01,468 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:01,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash 887321969, now seen corresponding path program 1 times [2024-11-13 15:01:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:01,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317917418] [2024-11-13 15:01:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:01,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:01:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:01:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:01:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:01:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:01:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:01:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:01:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:01:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:01:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:01:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:01:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:01:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:01:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:01:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:01:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:01:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:01:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:01:02,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:02,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317917418] [2024-11-13 15:01:02,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317917418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:02,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:02,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 15:01:02,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432188610] [2024-11-13 15:01:02,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:02,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:01:02,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:02,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:01:02,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:01:02,104 INFO L87 Difference]: Start difference. First operand 1367 states and 1635 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:03,496 INFO L93 Difference]: Finished difference Result 3066 states and 3652 transitions. [2024-11-13 15:01:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:01:03,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-13 15:01:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:03,504 INFO L225 Difference]: With dead ends: 3066 [2024-11-13 15:01:03,504 INFO L226 Difference]: Without dead ends: 1702 [2024-11-13 15:01:03,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:01:03,507 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 134 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:03,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 959 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:01:03,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-13 15:01:03,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1342. [2024-11-13 15:01:03,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1265 states have (on average 1.1731225296442689) internal successors, (1484), 1269 states have internal predecessors, (1484), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:01:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1604 transitions. [2024-11-13 15:01:03,900 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1604 transitions. Word has length 151 [2024-11-13 15:01:03,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:03,901 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1604 transitions. [2024-11-13 15:01:03,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1604 transitions. [2024-11-13 15:01:03,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 15:01:03,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:03,903 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:03,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 15:01:03,903 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:03,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash 648264093, now seen corresponding path program 1 times [2024-11-13 15:01:03,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:03,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675420894] [2024-11-13 15:01:03,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:03,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:01:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:01:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:01:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:01:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:01:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:01:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:01:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:01:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:01:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:01:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:01:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:01:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:01:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:01:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:01:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:01:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:01:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:06,775 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:01:06,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:06,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675420894] [2024-11-13 15:01:06,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675420894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:06,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:06,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-13 15:01:06,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065409536] [2024-11-13 15:01:06,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:06,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 15:01:06,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:06,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:01:06,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:01:06,778 INFO L87 Difference]: Start difference. First operand 1342 states and 1604 transitions. Second operand has 19 states, 17 states have (on average 3.764705882352941) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 15:01:11,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:11,441 INFO L93 Difference]: Finished difference Result 2953 states and 3519 transitions. [2024-11-13 15:01:11,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 15:01:11,442 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.764705882352941) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 151 [2024-11-13 15:01:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:11,447 INFO L225 Difference]: With dead ends: 2953 [2024-11-13 15:01:11,447 INFO L226 Difference]: Without dead ends: 1614 [2024-11-13 15:01:11,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 15:01:11,450 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 415 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:11,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1570 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 15:01:11,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-11-13 15:01:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1325. [2024-11-13 15:01:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1248 states have (on average 1.1754807692307692) internal successors, (1467), 1252 states have internal predecessors, (1467), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:01:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1587 transitions. [2024-11-13 15:01:11,802 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1587 transitions. Word has length 151 [2024-11-13 15:01:11,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:11,806 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1587 transitions. [2024-11-13 15:01:11,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.764705882352941) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-13 15:01:11,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1587 transitions. [2024-11-13 15:01:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 15:01:11,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:11,809 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:11,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 15:01:11,809 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:11,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:11,809 INFO L85 PathProgramCache]: Analyzing trace with hash 525894971, now seen corresponding path program 1 times [2024-11-13 15:01:11,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:11,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356487216] [2024-11-13 15:01:11,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:11,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:01:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:01:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:01:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:01:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:01:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:01:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:01:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:01:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:01:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:01:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:01:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:01:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:01:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:01:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:01:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:01:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:01:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:01:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356487216] [2024-11-13 15:01:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356487216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:12,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:12,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:01:12,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146013344] [2024-11-13 15:01:12,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:12,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:01:12,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:12,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:01:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:01:12,371 INFO L87 Difference]: Start difference. First operand 1325 states and 1587 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:13,289 INFO L93 Difference]: Finished difference Result 2711 states and 3240 transitions. [2024-11-13 15:01:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:01:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2024-11-13 15:01:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:13,294 INFO L225 Difference]: With dead ends: 2711 [2024-11-13 15:01:13,294 INFO L226 Difference]: Without dead ends: 1389 [2024-11-13 15:01:13,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:01:13,295 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 55 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:13,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 594 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:01:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2024-11-13 15:01:13,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1166. [2024-11-13 15:01:13,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1089 states have (on average 1.179981634527089) internal successors, (1285), 1093 states have internal predecessors, (1285), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:01:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1405 transitions. [2024-11-13 15:01:13,555 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1405 transitions. Word has length 154 [2024-11-13 15:01:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:13,556 INFO L471 AbstractCegarLoop]: Abstraction has 1166 states and 1405 transitions. [2024-11-13 15:01:13,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1405 transitions. [2024-11-13 15:01:13,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 15:01:13,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:13,557 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:01:13,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-13 15:01:13,557 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:13,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1919702145, now seen corresponding path program 1 times [2024-11-13 15:01:13,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:13,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765940224] [2024-11-13 15:01:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:13,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:01:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:01:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:01:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:01:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:01:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:01:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:01:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:01:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:01:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:01:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:01:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:01:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:01:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:01:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:01:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:01:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:01:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-13 15:01:14,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:14,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765940224] [2024-11-13 15:01:14,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765940224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:14,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:14,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:01:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307611574] [2024-11-13 15:01:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:14,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:01:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:01:14,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:01:14,269 INFO L87 Difference]: Start difference. First operand 1166 states and 1405 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:15,311 INFO L93 Difference]: Finished difference Result 2391 states and 2876 transitions. [2024-11-13 15:01:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:01:15,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-13 15:01:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:15,317 INFO L225 Difference]: With dead ends: 2391 [2024-11-13 15:01:15,317 INFO L226 Difference]: Without dead ends: 1228 [2024-11-13 15:01:15,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:01:15,321 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 51 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:15,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 892 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:01:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-13 15:01:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1099. [2024-11-13 15:01:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1022 states have (on average 1.181996086105675) internal successors, (1208), 1026 states have internal predecessors, (1208), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:01:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1328 transitions. [2024-11-13 15:01:15,830 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1328 transitions. Word has length 155 [2024-11-13 15:01:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:15,831 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1328 transitions. [2024-11-13 15:01:15,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1328 transitions. [2024-11-13 15:01:15,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-13 15:01:15,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:15,835 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 15:01:15,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-13 15:01:15,836 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:15,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:15,836 INFO L85 PathProgramCache]: Analyzing trace with hash -640063866, now seen corresponding path program 1 times [2024-11-13 15:01:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:15,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084264137] [2024-11-13 15:01:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:01:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:01:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:01:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:01:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:01:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:01:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:01:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:01:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:01:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:01:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:01:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:01:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:01:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:01:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:01:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:01:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:01:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:15,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-13 15:01:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 15:01:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-13 15:01:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:01:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-13 15:01:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-13 15:01:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-13 15:01:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-13 15:01:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-13 15:01:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 15:01:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-13 15:01:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-13 15:01:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-13 15:01:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-13 15:01:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-13 15:01:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-13 15:01:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-13 15:01:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-13 15:01:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-13 15:01:16,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084264137] [2024-11-13 15:01:16,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084264137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:16,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:16,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:01:16,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769941063] [2024-11-13 15:01:16,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:16,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:01:16,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:16,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:01:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:16,049 INFO L87 Difference]: Start difference. First operand 1099 states and 1328 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:16,582 INFO L93 Difference]: Finished difference Result 1863 states and 2255 transitions. [2024-11-13 15:01:16,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:01:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 274 [2024-11-13 15:01:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:16,589 INFO L225 Difference]: With dead ends: 1863 [2024-11-13 15:01:16,589 INFO L226 Difference]: Without dead ends: 1168 [2024-11-13 15:01:16,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:01:16,591 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 41 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:16,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 299 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:01:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-13 15:01:17,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1046. [2024-11-13 15:01:17,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 969 states have (on average 1.1578947368421053) internal successors, (1122), 973 states have internal predecessors, (1122), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 15:01:17,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1242 transitions. [2024-11-13 15:01:17,048 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1242 transitions. Word has length 274 [2024-11-13 15:01:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:17,049 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1242 transitions. [2024-11-13 15:01:17,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-13 15:01:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1242 transitions. [2024-11-13 15:01:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-13 15:01:17,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:17,052 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 15:01:17,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 15:01:17,053 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:17,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash -991526886, now seen corresponding path program 1 times [2024-11-13 15:01:17,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:17,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336339476] [2024-11-13 15:01:17,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:17,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:01:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:01:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 15:01:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:01:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:01:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 15:01:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:01:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 15:01:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 15:01:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:01:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 15:01:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 15:01:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 15:01:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 15:01:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 15:01:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 15:01:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 15:01:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-13 15:01:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 15:01:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-13 15:01:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 15:01:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-13 15:01:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-13 15:01:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-13 15:01:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-13 15:01:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-13 15:01:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 15:01:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-13 15:01:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-13 15:01:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-13 15:01:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-13 15:01:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-13 15:01:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-13 15:01:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-13 15:01:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-13 15:01:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-13 15:01:21,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:21,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336339476] [2024-11-13 15:01:21,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336339476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:01:21,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048342539] [2024-11-13 15:01:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:21,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:01:21,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:01:21,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:01:21,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:01:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:22,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 15:01:22,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:29,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:01:29,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:01:30,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:01:31,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:01:31,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:01:31,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:01:31,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-13 15:01:31,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:01:31,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 23 [2024-11-13 15:01:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 8 proven. 291 refuted. 0 times theorem prover too weak. 2282 trivial. 0 not checked. [2024-11-13 15:01:31,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:01:34,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048342539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:01:34,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:01:34,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11] total 33 [2024-11-13 15:01:34,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729775468] [2024-11-13 15:01:34,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:01:34,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 15:01:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:34,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 15:01:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1566, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 15:01:34,095 INFO L87 Difference]: Start difference. First operand 1046 states and 1242 transitions. Second operand has 33 states, 30 states have (on average 6.033333333333333) internal successors, (181), 33 states have internal predecessors, (181), 10 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 8 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-13 15:01:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:47,508 INFO L93 Difference]: Finished difference Result 2681 states and 3138 transitions. [2024-11-13 15:01:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-13 15:01:47,509 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 6.033333333333333) internal successors, (181), 33 states have internal predecessors, (181), 10 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 8 states have call predecessors, (56), 10 states have call successors, (56) Word has length 280 [2024-11-13 15:01:47,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:47,511 INFO L225 Difference]: With dead ends: 2681 [2024-11-13 15:01:47,511 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 15:01:47,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=998, Invalid=4854, Unknown=0, NotChecked=0, Total=5852 [2024-11-13 15:01:47,515 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1120 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 2840 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:47,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 2087 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2840 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 15:01:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 15:01:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 15:01:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:01:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 15:01:47,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2024-11-13 15:01:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:47,519 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:01:47,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 6.033333333333333) internal successors, (181), 33 states have internal predecessors, (181), 10 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 8 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-13 15:01:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:01:47,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 15:01:47,522 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:01:47,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:01:47,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4630f021-9ac2-4065-a7f3-b65ce6f80d48/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:01:47,726 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-13 15:01:47,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.