./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1 --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 046473fab28f9389ecc0d44699a462777c1ef1278031560923e70e589643d659 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:00:25,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:00:25,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:00:25,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:00:25,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:00:25,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:00:25,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:00:25,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:00:25,202 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:00:25,202 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:00:25,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:00:25,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:00:25,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:00:25,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:00:25,203 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:00:25,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:00:25,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:00:25,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:00:25,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:00:25,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:00:25,204 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:00:25,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:00:25,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:00:25,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:00:25,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:00:25,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:00:25,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:00:25,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:00:25,206 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_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1 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 -> 046473fab28f9389ecc0d44699a462777c1ef1278031560923e70e589643d659 [2024-12-02 14:00:25,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:00:25,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:00:25,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:00:25,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:00:25,458 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:00:25,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i [2024-12-02 14:00:28,119 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/data/3a293efb0/ccdeed1ae77e4e13955af2db5e9096b4/FLAGa8dea7c64 [2024-12-02 14:00:28,328 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:00:28,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i [2024-12-02 14:00:28,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/data/3a293efb0/ccdeed1ae77e4e13955af2db5e9096b4/FLAGa8dea7c64 [2024-12-02 14:00:28,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/data/3a293efb0/ccdeed1ae77e4e13955af2db5e9096b4 [2024-12-02 14:00:28,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:00:28,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:00:28,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:00:28,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:00:28,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:00:28,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:28,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6404abf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28, skipping insertion in model container [2024-12-02 14:00:28,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:28,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:00:28,815 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_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i[919,932] [2024-12-02 14:00:28,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:00:28,886 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:00:28,894 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_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i[919,932] [2024-12-02 14:00:28,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:00:28,945 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:00:28,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28 WrapperNode [2024-12-02 14:00:28,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:00:28,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:00:28,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:00:28,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:00:28,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:28,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,002 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 336 [2024-12-02 14:00:29,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:00:29,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:00:29,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:00:29,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:00:29,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,033 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:00:29,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,045 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:00:29,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:00:29,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:00:29,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:00:29,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (1/1) ... [2024-12-02 14:00:29,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:00:29,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:00:29,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:00:29,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:00:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:00:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:00:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:00:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:00:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:00:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:00:29,185 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:00:29,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:00:29,649 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-12-02 14:00:29,649 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:00:29,660 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:00:29,660 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:00:29,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:00:29 BoogieIcfgContainer [2024-12-02 14:00:29,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:00:29,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:00:29,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:00:29,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:00:29,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:00:28" (1/3) ... [2024-12-02 14:00:29,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7f0834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:00:29, skipping insertion in model container [2024-12-02 14:00:29,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:00:28" (2/3) ... [2024-12-02 14:00:29,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7f0834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:00:29, skipping insertion in model container [2024-12-02 14:00:29,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:00:29" (3/3) ... [2024-12-02 14:00:29,670 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i [2024-12-02 14:00:29,681 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:00:29,683 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i that has 2 procedures, 148 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:00:29,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:00:29,737 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;@2c10b6e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:00:29,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:00:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 98 states have internal predecessors, (137), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 14:00:29,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-12-02 14:00:29,755 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:00:29,756 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:00:29,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:00:29,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:00:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1857015494, now seen corresponding path program 1 times [2024-12-02 14:00:29,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:00:29,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983711154] [2024-12-02 14:00:29,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:00:29,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:00:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:00:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2024-12-02 14:00:30,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:00:30,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983711154] [2024-12-02 14:00:30,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983711154] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:00:30,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014102562] [2024-12-02 14:00:30,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:00:30,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:00:30,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:00:30,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:00:30,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:00:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:00:30,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:00:30,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:00:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2024-12-02 14:00:30,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:00:30,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014102562] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:00:30,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:00:30,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:00:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324981942] [2024-12-02 14:00:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:00:30,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:00:30,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:00:30,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:00:30,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:00:30,383 INFO L87 Difference]: Start difference. First operand has 148 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 98 states have internal predecessors, (137), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:00:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:00:30,419 INFO L93 Difference]: Finished difference Result 289 states and 508 transitions. [2024-12-02 14:00:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:00:30,420 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 296 [2024-12-02 14:00:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:00:30,427 INFO L225 Difference]: With dead ends: 289 [2024-12-02 14:00:30,427 INFO L226 Difference]: Without dead ends: 144 [2024-12-02 14:00:30,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:00:30,432 INFO L435 NwaCegarLoop]: 226 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, 226 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 [2024-12-02 14:00:30,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:00:30,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-12-02 14:00:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-12-02 14:00:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.3829787234042554) internal successors, (130), 94 states have internal predecessors, (130), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 14:00:30,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 226 transitions. [2024-12-02 14:00:30,475 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 226 transitions. Word has length 296 [2024-12-02 14:00:30,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:00:30,476 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 226 transitions. [2024-12-02 14:00:30,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:00:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 226 transitions. [2024-12-02 14:00:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-12-02 14:00:30,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:00:30,482 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:00:30,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:00:30,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:00:30,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:00:30,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:00:30,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1341157954, now seen corresponding path program 1 times [2024-12-02 14:00:30,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:00:30,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156225904] [2024-12-02 14:00:30,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:00:30,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:00:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:00:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:00:31,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:00:31,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156225904] [2024-12-02 14:00:31,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156225904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:00:31,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:00:31,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:00:31,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572297232] [2024-12-02 14:00:31,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:00:31,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:00:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:00:31,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:00:31,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:00:31,276 INFO L87 Difference]: Start difference. First operand 144 states and 226 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:00:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:00:31,575 INFO L93 Difference]: Finished difference Result 427 states and 673 transitions. [2024-12-02 14:00:31,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:00:31,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 296 [2024-12-02 14:00:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:00:31,580 INFO L225 Difference]: With dead ends: 427 [2024-12-02 14:00:31,580 INFO L226 Difference]: Without dead ends: 286 [2024-12-02 14:00:31,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:00:31,583 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 173 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:00:31,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 655 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:00:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-12-02 14:00:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 252. [2024-12-02 14:00:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 153 states have internal predecessors, (208), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 14:00:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 400 transitions. [2024-12-02 14:00:31,636 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 400 transitions. Word has length 296 [2024-12-02 14:00:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:00:31,637 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 400 transitions. [2024-12-02 14:00:31,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:00:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 400 transitions. [2024-12-02 14:00:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:00:31,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:00:31,642 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:00:31,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:00:31,643 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:00:31,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:00:31,644 INFO L85 PathProgramCache]: Analyzing trace with hash 208180488, now seen corresponding path program 1 times [2024-12-02 14:00:31,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:00:31,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754547675] [2024-12-02 14:00:31,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:00:31,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:00:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:01:33,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754547675] [2024-12-02 14:01:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754547675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:33,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:33,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:01:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278771580] [2024-12-02 14:01:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:01:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:33,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:01:33,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:01:33,962 INFO L87 Difference]: Start difference. First operand 252 states and 400 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:01:38,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:01:38,645 INFO L93 Difference]: Finished difference Result 705 states and 1071 transitions. [2024-12-02 14:01:38,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:01:38,646 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 297 [2024-12-02 14:01:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:01:38,651 INFO L225 Difference]: With dead ends: 705 [2024-12-02 14:01:38,651 INFO L226 Difference]: Without dead ends: 564 [2024-12-02 14:01:38,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=239, Invalid=817, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 14:01:38,653 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 757 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:01:38,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1860 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 14:01:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-12-02 14:01:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 389. [2024-12-02 14:01:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 238 states have (on average 1.315126050420168) internal successors, (313), 239 states have internal predecessors, (313), 144 states have call successors, (144), 6 states have call predecessors, (144), 6 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 14:01:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 601 transitions. [2024-12-02 14:01:38,699 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 601 transitions. Word has length 297 [2024-12-02 14:01:38,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:01:38,700 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 601 transitions. [2024-12-02 14:01:38,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:01:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 601 transitions. [2024-12-02 14:01:38,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:01:38,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:01:38,704 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:01:38,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:01:38,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:01:38,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1356305928, now seen corresponding path program 1 times [2024-12-02 14:01:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951933043] [2024-12-02 14:01:38,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:01:54,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:54,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951933043] [2024-12-02 14:01:54,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951933043] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:54,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:54,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:01:54,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560550929] [2024-12-02 14:01:54,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:54,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:01:54,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:54,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:01:54,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:01:54,411 INFO L87 Difference]: Start difference. First operand 389 states and 601 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:01:57,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:01:57,066 INFO L93 Difference]: Finished difference Result 781 states and 1172 transitions. [2024-12-02 14:01:57,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:01:57,067 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 297 [2024-12-02 14:01:57,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:01:57,070 INFO L225 Difference]: With dead ends: 781 [2024-12-02 14:01:57,070 INFO L226 Difference]: Without dead ends: 640 [2024-12-02 14:01:57,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:01:57,071 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 505 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:01:57,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1672 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 14:01:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-12-02 14:01:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 432. [2024-12-02 14:01:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 281 states have (on average 1.3629893238434163) internal successors, (383), 281 states have internal predecessors, (383), 144 states have call successors, (144), 6 states have call predecessors, (144), 6 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 14:01:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 671 transitions. [2024-12-02 14:01:57,105 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 671 transitions. Word has length 297 [2024-12-02 14:01:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:01:57,106 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 671 transitions. [2024-12-02 14:01:57,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:01:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 671 transitions. [2024-12-02 14:01:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:01:57,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:01:57,108 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:01:57,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:01:57,109 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:01:57,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2036364298, now seen corresponding path program 1 times [2024-12-02 14:01:57,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:57,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132458318] [2024-12-02 14:01:57,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:57,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:02:18,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:02:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132458318] [2024-12-02 14:02:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132458318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:18,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:18,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:02:18,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533280325] [2024-12-02 14:02:18,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:18,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:02:18,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:18,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:02:18,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:02:18,522 INFO L87 Difference]: Start difference. First operand 432 states and 671 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 14:02:22,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:22,795 INFO L93 Difference]: Finished difference Result 729 states and 1093 transitions. [2024-12-02 14:02:22,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:02:22,795 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 297 [2024-12-02 14:02:22,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:22,798 INFO L225 Difference]: With dead ends: 729 [2024-12-02 14:02:22,798 INFO L226 Difference]: Without dead ends: 588 [2024-12-02 14:02:22,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-12-02 14:02:22,799 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 997 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:02:22,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1507 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 14:02:22,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-12-02 14:02:22,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 458. [2024-12-02 14:02:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 303 states have (on average 1.3564356435643565) internal successors, (411), 303 states have internal predecessors, (411), 144 states have call successors, (144), 10 states have call predecessors, (144), 10 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 14:02:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 699 transitions. [2024-12-02 14:02:22,850 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 699 transitions. Word has length 297 [2024-12-02 14:02:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:22,851 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 699 transitions. [2024-12-02 14:02:22,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 14:02:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 699 transitions. [2024-12-02 14:02:22,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:02:22,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:22,853 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:02:22,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:02:22,854 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:22,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2000437560, now seen corresponding path program 1 times [2024-12-02 14:02:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046578676] [2024-12-02 14:02:22,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:02:43,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:02:43,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046578676] [2024-12-02 14:02:43,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046578676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:43,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:43,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:02:43,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340750325] [2024-12-02 14:02:43,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:43,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:02:43,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:43,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:02:43,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:02:43,680 INFO L87 Difference]: Start difference. First operand 458 states and 699 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:02:46,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:46,652 INFO L93 Difference]: Finished difference Result 735 states and 1103 transitions. [2024-12-02 14:02:46,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:02:46,653 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 297 [2024-12-02 14:02:46,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:46,656 INFO L225 Difference]: With dead ends: 735 [2024-12-02 14:02:46,656 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 14:02:46,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-12-02 14:02:46,658 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 653 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:02:46,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1294 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:02:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 14:02:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 458. [2024-12-02 14:02:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 303 states have (on average 1.3564356435643565) internal successors, (411), 303 states have internal predecessors, (411), 144 states have call successors, (144), 10 states have call predecessors, (144), 10 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 14:02:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 699 transitions. [2024-12-02 14:02:46,702 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 699 transitions. Word has length 297 [2024-12-02 14:02:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:46,702 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 699 transitions. [2024-12-02 14:02:46,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:02:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 699 transitions. [2024-12-02 14:02:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:02:46,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:46,704 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:02:46,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:02:46,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:46,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:46,705 INFO L85 PathProgramCache]: Analyzing trace with hash -132829496, now seen corresponding path program 1 times [2024-12-02 14:02:46,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:46,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387853338] [2024-12-02 14:02:46,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:46,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:02:56,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:02:56,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387853338] [2024-12-02 14:02:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387853338] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:56,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:56,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:02:56,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922433367] [2024-12-02 14:02:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:56,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:02:56,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:56,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:02:56,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:02:56,795 INFO L87 Difference]: Start difference. First operand 458 states and 699 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:02:58,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:58,029 INFO L93 Difference]: Finished difference Result 862 states and 1298 transitions. [2024-12-02 14:02:58,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:02:58,030 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 297 [2024-12-02 14:02:58,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:58,032 INFO L225 Difference]: With dead ends: 862 [2024-12-02 14:02:58,032 INFO L226 Difference]: Without dead ends: 546 [2024-12-02 14:02:58,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:02:58,034 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 491 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:02:58,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1346 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:02:58,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-12-02 14:02:58,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 460. [2024-12-02 14:02:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 305 states have (on average 1.3540983606557377) internal successors, (413), 305 states have internal predecessors, (413), 144 states have call successors, (144), 10 states have call predecessors, (144), 10 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 14:02:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 701 transitions. [2024-12-02 14:02:58,074 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 701 transitions. Word has length 297 [2024-12-02 14:02:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:58,075 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 701 transitions. [2024-12-02 14:02:58,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:02:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 701 transitions. [2024-12-02 14:02:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:02:58,077 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:58,077 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:02:58,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:02:58,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:58,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1785964218, now seen corresponding path program 1 times [2024-12-02 14:02:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:58,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824189335] [2024-12-02 14:02:58,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:03:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:03:14,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:03:14,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824189335] [2024-12-02 14:03:14,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824189335] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:03:14,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:03:14,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:03:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335230761] [2024-12-02 14:03:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:03:14,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:03:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:03:14,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:03:14,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:03:14,269 INFO L87 Difference]: Start difference. First operand 460 states and 701 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:03:15,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:03:15,851 INFO L93 Difference]: Finished difference Result 797 states and 1217 transitions. [2024-12-02 14:03:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:03:15,852 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 297 [2024-12-02 14:03:15,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:03:15,856 INFO L225 Difference]: With dead ends: 797 [2024-12-02 14:03:15,856 INFO L226 Difference]: Without dead ends: 656 [2024-12-02 14:03:15,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-12-02 14:03:15,858 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 463 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:03:15,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1134 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:03:15,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-12-02 14:03:15,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 555. [2024-12-02 14:03:15,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 349 states have (on average 1.3123209169054442) internal successors, (458), 350 states have internal predecessors, (458), 192 states have call successors, (192), 13 states have call predecessors, (192), 13 states have return successors, (192), 191 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 14:03:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 842 transitions. [2024-12-02 14:03:15,930 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 842 transitions. Word has length 297 [2024-12-02 14:03:15,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:03:15,931 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 842 transitions. [2024-12-02 14:03:15,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:03:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 842 transitions. [2024-12-02 14:03:15,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 14:03:15,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:03:15,934 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:03:15,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:03:15,934 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:03:15,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:03:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2126974202, now seen corresponding path program 1 times [2024-12-02 14:03:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:03:15,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647938638] [2024-12-02 14:03:15,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:03:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:03:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:03:34,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:03:34,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:03:34,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647938638] [2024-12-02 14:03:34,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647938638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:03:34,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:03:34,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:03:34,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031863685] [2024-12-02 14:03:34,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:03:34,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:03:34,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:03:34,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:03:34,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:03:34,490 INFO L87 Difference]: Start difference. First operand 555 states and 842 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, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:03:37,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:03:37,497 INFO L93 Difference]: Finished difference Result 1185 states and 1790 transitions. [2024-12-02 14:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:03:37,498 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, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 297 [2024-12-02 14:03:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:03:37,503 INFO L225 Difference]: With dead ends: 1185 [2024-12-02 14:03:37,504 INFO L226 Difference]: Without dead ends: 881 [2024-12-02 14:03:37,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:03:37,506 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 421 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:03:37,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1762 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 14:03:37,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-12-02 14:03:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 734. [2024-12-02 14:03:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 477 states have (on average 1.3396226415094339) internal successors, (639), 477 states have internal predecessors, (639), 240 states have call successors, (240), 16 states have call predecessors, (240), 16 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 14:03:37,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1119 transitions. [2024-12-02 14:03:37,595 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1119 transitions. Word has length 297 [2024-12-02 14:03:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:03:37,595 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1119 transitions. [2024-12-02 14:03:37,595 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, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:03:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1119 transitions. [2024-12-02 14:03:37,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:03:37,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:03:37,597 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:03:37,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:03:37,598 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:03:37,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:03:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1591407757, now seen corresponding path program 1 times [2024-12-02 14:03:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:03:37,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043903594] [2024-12-02 14:03:37,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:03:37,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:03:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:04:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:04:45,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:04:45,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043903594] [2024-12-02 14:04:45,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043903594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:04:45,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:04:45,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 14:04:45,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664274556] [2024-12-02 14:04:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:04:45,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 14:04:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:04:45,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 14:04:45,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:04:45,592 INFO L87 Difference]: Start difference. First operand 734 states and 1119 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2024-12-02 14:04:52,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:04:52,714 INFO L93 Difference]: Finished difference Result 1080 states and 1619 transitions. [2024-12-02 14:04:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:04:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 298 [2024-12-02 14:04:52,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:04:52,718 INFO L225 Difference]: With dead ends: 1080 [2024-12-02 14:04:52,718 INFO L226 Difference]: Without dead ends: 939 [2024-12-02 14:04:52,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 14:04:52,719 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 1290 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:04:52,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2272 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 14:04:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-12-02 14:04:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 745. [2024-12-02 14:04:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 488 states have (on average 1.3442622950819672) internal successors, (656), 488 states have internal predecessors, (656), 240 states have call successors, (240), 16 states have call predecessors, (240), 16 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 14:04:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1136 transitions. [2024-12-02 14:04:52,771 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1136 transitions. Word has length 298 [2024-12-02 14:04:52,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:04:52,771 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1136 transitions. [2024-12-02 14:04:52,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2024-12-02 14:04:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1136 transitions. [2024-12-02 14:04:52,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:04:52,773 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:04:52,774 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:04:52,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:04:52,774 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:04:52,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:04:52,774 INFO L85 PathProgramCache]: Analyzing trace with hash 183599605, now seen corresponding path program 1 times [2024-12-02 14:04:52,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:04:52,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385407316] [2024-12-02 14:04:52,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:04:52,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:04:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:04:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:04:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:04:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385407316] [2024-12-02 14:04:53,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385407316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:04:53,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:04:53,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:04:53,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030904071] [2024-12-02 14:04:53,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:04:53,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:04:53,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:04:53,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:04:53,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:04:53,078 INFO L87 Difference]: Start difference. First operand 745 states and 1136 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:04:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:04:53,248 INFO L93 Difference]: Finished difference Result 1335 states and 2020 transitions. [2024-12-02 14:04:53,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:04:53,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 298 [2024-12-02 14:04:53,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:04:53,254 INFO L225 Difference]: With dead ends: 1335 [2024-12-02 14:04:53,254 INFO L226 Difference]: Without dead ends: 863 [2024-12-02 14:04:53,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:04:53,256 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 114 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:04:53,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 410 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:04:53,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-12-02 14:04:53,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 820. [2024-12-02 14:04:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 559 states have (on average 1.3470483005366727) internal successors, (753), 560 states have internal predecessors, (753), 242 states have call successors, (242), 18 states have call predecessors, (242), 18 states have return successors, (242), 241 states have call predecessors, (242), 242 states have call successors, (242) [2024-12-02 14:04:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1237 transitions. [2024-12-02 14:04:53,350 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1237 transitions. Word has length 298 [2024-12-02 14:04:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:04:53,351 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1237 transitions. [2024-12-02 14:04:53,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:04:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1237 transitions. [2024-12-02 14:04:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:04:53,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:04:53,353 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:04:53,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:04:53,353 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:04:53,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:04:53,353 INFO L85 PathProgramCache]: Analyzing trace with hash -359257485, now seen corresponding path program 1 times [2024-12-02 14:04:53,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:04:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136119143] [2024-12-02 14:04:53,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:04:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:04:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:05:06,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:05:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136119143] [2024-12-02 14:05:06,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136119143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:05:06,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:05:06,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:05:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860784608] [2024-12-02 14:05:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:05:06,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:05:06,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:05:06,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:05:06,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:05:06,720 INFO L87 Difference]: Start difference. First operand 820 states and 1237 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:05:07,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:05:07,762 INFO L93 Difference]: Finished difference Result 1163 states and 1731 transitions. [2024-12-02 14:05:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:05:07,763 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 298 [2024-12-02 14:05:07,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:05:07,767 INFO L225 Difference]: With dead ends: 1163 [2024-12-02 14:05:07,767 INFO L226 Difference]: Without dead ends: 984 [2024-12-02 14:05:07,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:05:07,768 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 463 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:05:07,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1209 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:05:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-12-02 14:05:07,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 828. [2024-12-02 14:05:07,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 567 states have (on average 1.3492063492063493) internal successors, (765), 568 states have internal predecessors, (765), 242 states have call successors, (242), 18 states have call predecessors, (242), 18 states have return successors, (242), 241 states have call predecessors, (242), 242 states have call successors, (242) [2024-12-02 14:05:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1249 transitions. [2024-12-02 14:05:07,858 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1249 transitions. Word has length 298 [2024-12-02 14:05:07,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:05:07,859 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1249 transitions. [2024-12-02 14:05:07,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:05:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1249 transitions. [2024-12-02 14:05:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:05:07,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:05:07,861 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:07,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:05:07,862 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:05:07,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -752284495, now seen corresponding path program 1 times [2024-12-02 14:05:07,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:05:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911382136] [2024-12-02 14:05:07,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:07,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:06:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:06:10,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:06:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911382136] [2024-12-02 14:06:10,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911382136] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:06:10,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:06:10,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:06:10,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126208160] [2024-12-02 14:06:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:06:10,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:06:10,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:06:10,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:06:10,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:06:10,784 INFO L87 Difference]: Start difference. First operand 828 states and 1249 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:06:15,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:06:15,552 INFO L93 Difference]: Finished difference Result 1234 states and 1822 transitions. [2024-12-02 14:06:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:06:15,553 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 298 [2024-12-02 14:06:15,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:06:15,557 INFO L225 Difference]: With dead ends: 1234 [2024-12-02 14:06:15,557 INFO L226 Difference]: Without dead ends: 1055 [2024-12-02 14:06:15,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:06:15,559 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 628 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:06:15,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1772 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 14:06:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-12-02 14:06:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 849. [2024-12-02 14:06:15,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 587 states have (on average 1.352640545144804) internal successors, (794), 588 states have internal predecessors, (794), 242 states have call successors, (242), 19 states have call predecessors, (242), 19 states have return successors, (242), 241 states have call predecessors, (242), 242 states have call successors, (242) [2024-12-02 14:06:15,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1278 transitions. [2024-12-02 14:06:15,654 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1278 transitions. Word has length 298 [2024-12-02 14:06:15,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:06:15,654 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1278 transitions. [2024-12-02 14:06:15,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:06:15,655 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1278 transitions. [2024-12-02 14:06:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:06:15,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:06:15,657 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:06:15,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:06:15,657 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:06:15,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:06:15,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2116753525, now seen corresponding path program 1 times [2024-12-02 14:06:15,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:06:15,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487503835] [2024-12-02 14:06:15,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:06:15,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:06:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:06:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:06:15,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:06:15,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487503835] [2024-12-02 14:06:15,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487503835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:06:15,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:06:15,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:06:15,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424758067] [2024-12-02 14:06:15,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:06:15,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:06:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:06:15,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:06:15,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:06:15,835 INFO L87 Difference]: Start difference. First operand 849 states and 1278 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:06:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:06:15,951 INFO L93 Difference]: Finished difference Result 1741 states and 2585 transitions. [2024-12-02 14:06:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:06:15,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 298 [2024-12-02 14:06:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:06:15,956 INFO L225 Difference]: With dead ends: 1741 [2024-12-02 14:06:15,956 INFO L226 Difference]: Without dead ends: 1041 [2024-12-02 14:06:15,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:06:15,957 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 39 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:06:15,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 719 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:06:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-12-02 14:06:16,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 996. [2024-12-02 14:06:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 714 states have (on average 1.334733893557423) internal successors, (953), 719 states have internal predecessors, (953), 256 states have call successors, (256), 25 states have call predecessors, (256), 25 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:06:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1465 transitions. [2024-12-02 14:06:16,065 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1465 transitions. Word has length 298 [2024-12-02 14:06:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:06:16,065 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1465 transitions. [2024-12-02 14:06:16,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:06:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1465 transitions. [2024-12-02 14:06:16,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:06:16,068 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:06:16,068 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:06:16,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:06:16,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:06:16,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:06:16,068 INFO L85 PathProgramCache]: Analyzing trace with hash 722184627, now seen corresponding path program 1 times [2024-12-02 14:06:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:06:16,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476786015] [2024-12-02 14:06:16,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:06:16,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:06:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:06:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:06:34,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:06:34,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476786015] [2024-12-02 14:06:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476786015] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:06:34,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:06:34,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:06:34,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189589608] [2024-12-02 14:06:34,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:06:34,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:06:34,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:06:34,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:06:34,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:06:34,565 INFO L87 Difference]: Start difference. First operand 996 states and 1465 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:06:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:06:37,767 INFO L93 Difference]: Finished difference Result 1917 states and 2775 transitions. [2024-12-02 14:06:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:06:37,767 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 298 [2024-12-02 14:06:37,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:06:37,772 INFO L225 Difference]: With dead ends: 1917 [2024-12-02 14:06:37,773 INFO L226 Difference]: Without dead ends: 1253 [2024-12-02 14:06:37,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2024-12-02 14:06:37,775 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 481 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:06:37,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1839 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 14:06:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-12-02 14:06:37,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 999. [2024-12-02 14:06:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 717 states have (on average 1.3347280334728033) internal successors, (957), 722 states have internal predecessors, (957), 256 states have call successors, (256), 25 states have call predecessors, (256), 25 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:06:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1469 transitions. [2024-12-02 14:06:37,892 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1469 transitions. Word has length 298 [2024-12-02 14:06:37,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:06:37,892 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1469 transitions. [2024-12-02 14:06:37,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:06:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1469 transitions. [2024-12-02 14:06:37,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:06:37,894 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:06:37,895 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:06:37,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:06:37,895 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:06:37,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:06:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1954334899, now seen corresponding path program 1 times [2024-12-02 14:06:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:06:37,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758574874] [2024-12-02 14:06:37,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:06:37,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:06:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:06:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:06:57,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:06:57,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758574874] [2024-12-02 14:06:57,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758574874] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:06:57,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:06:57,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:06:57,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153657356] [2024-12-02 14:06:57,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:06:57,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:06:57,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:06:57,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:06:57,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:06:57,490 INFO L87 Difference]: Start difference. First operand 999 states and 1469 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:06:59,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:06:59,943 INFO L93 Difference]: Finished difference Result 1901 states and 2756 transitions. [2024-12-02 14:06:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:06:59,944 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 298 [2024-12-02 14:06:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:06:59,950 INFO L225 Difference]: With dead ends: 1901 [2024-12-02 14:06:59,950 INFO L226 Difference]: Without dead ends: 1234 [2024-12-02 14:06:59,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:06:59,952 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 366 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:06:59,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1783 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:06:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2024-12-02 14:07:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 994. [2024-12-02 14:07:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 712 states have (on average 1.3342696629213484) internal successors, (950), 717 states have internal predecessors, (950), 256 states have call successors, (256), 25 states have call predecessors, (256), 25 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:07:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1462 transitions. [2024-12-02 14:07:00,063 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1462 transitions. Word has length 298 [2024-12-02 14:07:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:07:00,064 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1462 transitions. [2024-12-02 14:07:00,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:07:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1462 transitions. [2024-12-02 14:07:00,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:07:00,066 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:07:00,066 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:07:00,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:07:00,066 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:07:00,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:07:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1014615797, now seen corresponding path program 1 times [2024-12-02 14:07:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:07:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355374446] [2024-12-02 14:07:00,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:07:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:07:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:07:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:07:47,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:07:47,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355374446] [2024-12-02 14:07:47,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355374446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:07:47,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:07:47,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:07:47,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157154594] [2024-12-02 14:07:47,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:07:47,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:07:47,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:07:47,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:07:47,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:07:47,007 INFO L87 Difference]: Start difference. First operand 994 states and 1462 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 14:07:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:07:52,662 INFO L93 Difference]: Finished difference Result 1383 states and 2012 transitions. [2024-12-02 14:07:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:07:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 298 [2024-12-02 14:07:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:07:52,666 INFO L225 Difference]: With dead ends: 1383 [2024-12-02 14:07:52,666 INFO L226 Difference]: Without dead ends: 1147 [2024-12-02 14:07:52,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=256, Invalid=934, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:07:52,668 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 916 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:07:52,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1721 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 14:07:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-12-02 14:07:52,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1007. [2024-12-02 14:07:52,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 723 states have (on average 1.3333333333333333) internal successors, (964), 728 states have internal predecessors, (964), 256 states have call successors, (256), 27 states have call predecessors, (256), 27 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:07:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1476 transitions. [2024-12-02 14:07:52,730 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1476 transitions. Word has length 298 [2024-12-02 14:07:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:07:52,730 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1476 transitions. [2024-12-02 14:07:52,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 14:07:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1476 transitions. [2024-12-02 14:07:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:07:52,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:07:52,732 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:07:52,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:07:52,732 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:07:52,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:07:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1505344137, now seen corresponding path program 1 times [2024-12-02 14:07:52,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:07:52,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461098847] [2024-12-02 14:07:52,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:07:52,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:07:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:07:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:07:54,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:07:54,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461098847] [2024-12-02 14:07:54,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461098847] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:07:54,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:07:54,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:07:54,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986784850] [2024-12-02 14:07:54,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:07:54,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:07:54,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:07:54,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:07:54,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:07:54,554 INFO L87 Difference]: Start difference. First operand 1007 states and 1476 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:07:55,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:07:55,379 INFO L93 Difference]: Finished difference Result 1726 states and 2482 transitions. [2024-12-02 14:07:55,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:07:55,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 298 [2024-12-02 14:07:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:07:55,385 INFO L225 Difference]: With dead ends: 1726 [2024-12-02 14:07:55,385 INFO L226 Difference]: Without dead ends: 1490 [2024-12-02 14:07:55,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:07:55,386 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 295 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:07:55,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1150 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:07:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2024-12-02 14:07:55,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1042. [2024-12-02 14:07:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 758 states have (on average 1.3403693931398417) internal successors, (1016), 763 states have internal predecessors, (1016), 256 states have call successors, (256), 27 states have call predecessors, (256), 27 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:07:55,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1528 transitions. [2024-12-02 14:07:55,455 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1528 transitions. Word has length 298 [2024-12-02 14:07:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:07:55,456 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1528 transitions. [2024-12-02 14:07:55,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:07:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1528 transitions. [2024-12-02 14:07:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:07:55,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:07:55,458 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:07:55,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:07:55,458 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:07:55,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:07:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash -666220875, now seen corresponding path program 1 times [2024-12-02 14:07:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:07:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439957060] [2024-12-02 14:07:55,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:07:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:07:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:04,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:04,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439957060] [2024-12-02 14:08:04,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439957060] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:04,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:04,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:08:04,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342627818] [2024-12-02 14:08:04,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:04,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:08:04,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:04,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:08:04,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:08:04,741 INFO L87 Difference]: Start difference. First operand 1042 states and 1528 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, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:05,725 INFO L93 Difference]: Finished difference Result 1477 states and 2140 transitions. [2024-12-02 14:08:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:08:05,726 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, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 298 [2024-12-02 14:08:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:05,729 INFO L225 Difference]: With dead ends: 1477 [2024-12-02 14:08:05,730 INFO L226 Difference]: Without dead ends: 1225 [2024-12-02 14:08:05,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:08:05,731 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 338 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:05,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1085 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:08:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-12-02 14:08:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1048. [2024-12-02 14:08:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 764 states have (on average 1.3429319371727748) internal successors, (1026), 769 states have internal predecessors, (1026), 256 states have call successors, (256), 27 states have call predecessors, (256), 27 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:08:05,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1538 transitions. [2024-12-02 14:08:05,806 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1538 transitions. Word has length 298 [2024-12-02 14:08:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:05,807 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1538 transitions. [2024-12-02 14:08:05,807 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, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1538 transitions. [2024-12-02 14:08:05,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 14:08:05,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:05,808 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:05,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:08:05,808 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:05,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash -966759115, now seen corresponding path program 1 times [2024-12-02 14:08:05,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:05,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865370007] [2024-12-02 14:08:05,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:05,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:21,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:21,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865370007] [2024-12-02 14:08:21,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865370007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:21,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:21,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:08:21,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066304342] [2024-12-02 14:08:21,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:21,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:08:21,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:21,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:08:21,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:08:21,343 INFO L87 Difference]: Start difference. First operand 1048 states and 1538 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:22,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:22,778 INFO L93 Difference]: Finished difference Result 2033 states and 2951 transitions. [2024-12-02 14:08:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:08:22,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 298 [2024-12-02 14:08:22,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:22,783 INFO L225 Difference]: With dead ends: 2033 [2024-12-02 14:08:22,783 INFO L226 Difference]: Without dead ends: 1301 [2024-12-02 14:08:22,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:08:22,784 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 337 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:22,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1617 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:08:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-12-02 14:08:22,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1046. [2024-12-02 14:08:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 762 states have (on average 1.3425196850393701) internal successors, (1023), 767 states have internal predecessors, (1023), 256 states have call successors, (256), 27 states have call predecessors, (256), 27 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:08:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1535 transitions. [2024-12-02 14:08:22,866 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1535 transitions. Word has length 298 [2024-12-02 14:08:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:22,867 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1535 transitions. [2024-12-02 14:08:22,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:22,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1535 transitions. [2024-12-02 14:08:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-12-02 14:08:22,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:22,868 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:22,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:08:22,868 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:22,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1669961157, now seen corresponding path program 1 times [2024-12-02 14:08:22,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:22,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742328996] [2024-12-02 14:08:22,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:22,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:33,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:33,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:33,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742328996] [2024-12-02 14:08:33,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742328996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:33,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:33,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:08:33,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233742437] [2024-12-02 14:08:33,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:33,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:08:33,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:33,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:08:33,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:08:33,312 INFO L87 Difference]: Start difference. First operand 1046 states and 1535 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:08:35,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:35,472 INFO L93 Difference]: Finished difference Result 1541 states and 2238 transitions. [2024-12-02 14:08:35,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:08:35,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 299 [2024-12-02 14:08:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:35,479 INFO L225 Difference]: With dead ends: 1541 [2024-12-02 14:08:35,479 INFO L226 Difference]: Without dead ends: 1289 [2024-12-02 14:08:35,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:08:35,480 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 475 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:35,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1431 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:08:35,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-12-02 14:08:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1064. [2024-12-02 14:08:35,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 780 states have (on average 1.344871794871795) internal successors, (1049), 785 states have internal predecessors, (1049), 256 states have call successors, (256), 27 states have call predecessors, (256), 27 states have return successors, (256), 251 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 14:08:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1561 transitions. [2024-12-02 14:08:35,583 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1561 transitions. Word has length 299 [2024-12-02 14:08:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:35,583 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1561 transitions. [2024-12-02 14:08:35,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:08:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1561 transitions. [2024-12-02 14:08:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:08:35,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:35,586 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:35,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:08:35,586 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:35,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:35,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1633087270, now seen corresponding path program 1 times [2024-12-02 14:08:35,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:35,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309349505] [2024-12-02 14:08:35,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:35,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:40,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:40,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309349505] [2024-12-02 14:08:40,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309349505] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:40,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:40,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:08:40,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279012285] [2024-12-02 14:08:40,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:40,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:08:40,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:40,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:08:40,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:08:40,307 INFO L87 Difference]: Start difference. First operand 1064 states and 1561 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 14:08:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:44,076 INFO L93 Difference]: Finished difference Result 1586 states and 2291 transitions. [2024-12-02 14:08:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 14:08:44,076 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 300 [2024-12-02 14:08:44,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:44,080 INFO L225 Difference]: With dead ends: 1586 [2024-12-02 14:08:44,080 INFO L226 Difference]: Without dead ends: 1334 [2024-12-02 14:08:44,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=241, Invalid=949, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:08:44,082 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 726 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:44,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1823 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 14:08:44,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2024-12-02 14:08:44,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1130. [2024-12-02 14:08:44,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 840 states have (on average 1.3416666666666666) internal successors, (1127), 846 states have internal predecessors, (1127), 260 states have call successors, (260), 29 states have call predecessors, (260), 29 states have return successors, (260), 254 states have call predecessors, (260), 260 states have call successors, (260) [2024-12-02 14:08:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1647 transitions. [2024-12-02 14:08:44,158 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1647 transitions. Word has length 300 [2024-12-02 14:08:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:44,159 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1647 transitions. [2024-12-02 14:08:44,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 14:08:44,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1647 transitions. [2024-12-02 14:08:44,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:08:44,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:44,161 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:44,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:08:44,161 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:44,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:44,162 INFO L85 PathProgramCache]: Analyzing trace with hash 318524966, now seen corresponding path program 1 times [2024-12-02 14:08:44,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:44,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649366831] [2024-12-02 14:08:44,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:44,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:45,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:45,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649366831] [2024-12-02 14:08:45,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649366831] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:45,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:45,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:08:45,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882559844] [2024-12-02 14:08:45,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:45,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:08:45,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:45,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:08:45,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:08:45,681 INFO L87 Difference]: Start difference. First operand 1130 states and 1647 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:46,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:46,396 INFO L93 Difference]: Finished difference Result 1588 states and 2243 transitions. [2024-12-02 14:08:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:08:46,397 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:08:46,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:46,401 INFO L225 Difference]: With dead ends: 1588 [2024-12-02 14:08:46,401 INFO L226 Difference]: Without dead ends: 1586 [2024-12-02 14:08:46,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:08:46,401 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 141 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:46,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2085 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:08:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-12-02 14:08:46,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1268. [2024-12-02 14:08:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 964 states have (on average 1.3464730290456433) internal successors, (1298), 972 states have internal predecessors, (1298), 272 states have call successors, (272), 31 states have call predecessors, (272), 31 states have return successors, (272), 264 states have call predecessors, (272), 272 states have call successors, (272) [2024-12-02 14:08:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1842 transitions. [2024-12-02 14:08:46,489 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1842 transitions. Word has length 300 [2024-12-02 14:08:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:46,489 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1842 transitions. [2024-12-02 14:08:46,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1842 transitions. [2024-12-02 14:08:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:08:46,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:46,491 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:46,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:08:46,491 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:46,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:46,491 INFO L85 PathProgramCache]: Analyzing trace with hash 576690404, now seen corresponding path program 1 times [2024-12-02 14:08:46,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:46,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524874526] [2024-12-02 14:08:46,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:46,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:49,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:49,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524874526] [2024-12-02 14:08:49,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524874526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:49,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:49,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 14:08:49,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395756473] [2024-12-02 14:08:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:49,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 14:08:49,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:49,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 14:08:49,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:08:49,248 INFO L87 Difference]: Start difference. First operand 1268 states and 1842 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:50,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:50,933 INFO L93 Difference]: Finished difference Result 1769 states and 2514 transitions. [2024-12-02 14:08:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:08:50,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:08:50,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:50,938 INFO L225 Difference]: With dead ends: 1769 [2024-12-02 14:08:50,938 INFO L226 Difference]: Without dead ends: 1767 [2024-12-02 14:08:50,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:08:50,939 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 399 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:50,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1501 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:08:50,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-12-02 14:08:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1290. [2024-12-02 14:08:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 986 states have (on average 1.354969574036511) internal successors, (1336), 994 states have internal predecessors, (1336), 272 states have call successors, (272), 31 states have call predecessors, (272), 31 states have return successors, (272), 264 states have call predecessors, (272), 272 states have call successors, (272) [2024-12-02 14:08:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1880 transitions. [2024-12-02 14:08:51,032 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1880 transitions. Word has length 300 [2024-12-02 14:08:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:51,032 INFO L471 AbstractCegarLoop]: Abstraction has 1290 states and 1880 transitions. [2024-12-02 14:08:51,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1880 transitions. [2024-12-02 14:08:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:08:51,033 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:51,034 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:51,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:08:51,034 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:51,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:51,034 INFO L85 PathProgramCache]: Analyzing trace with hash 353223592, now seen corresponding path program 1 times [2024-12-02 14:08:51,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:51,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422858673] [2024-12-02 14:08:51,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:51,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:53,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422858673] [2024-12-02 14:08:53,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422858673] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:53,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:53,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:08:53,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111077222] [2024-12-02 14:08:53,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:53,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:08:53,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:53,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:08:53,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:08:53,825 INFO L87 Difference]: Start difference. First operand 1290 states and 1880 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:55,350 INFO L93 Difference]: Finished difference Result 1962 states and 2780 transitions. [2024-12-02 14:08:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:08:55,350 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:08:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:55,356 INFO L225 Difference]: With dead ends: 1962 [2024-12-02 14:08:55,356 INFO L226 Difference]: Without dead ends: 1960 [2024-12-02 14:08:55,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:08:55,357 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 279 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:55,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1999 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 14:08:55,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2024-12-02 14:08:55,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1346. [2024-12-02 14:08:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1042 states have (on average 1.3598848368522074) internal successors, (1417), 1050 states have internal predecessors, (1417), 272 states have call successors, (272), 31 states have call predecessors, (272), 31 states have return successors, (272), 264 states have call predecessors, (272), 272 states have call successors, (272) [2024-12-02 14:08:55,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1961 transitions. [2024-12-02 14:08:55,472 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1961 transitions. Word has length 300 [2024-12-02 14:08:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:55,473 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1961 transitions. [2024-12-02 14:08:55,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1961 transitions. [2024-12-02 14:08:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:08:55,474 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:55,474 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:55,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 14:08:55,474 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:55,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:55,475 INFO L85 PathProgramCache]: Analyzing trace with hash -961338712, now seen corresponding path program 1 times [2024-12-02 14:08:55,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:55,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659022152] [2024-12-02 14:08:55,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:08:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:08:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:08:58,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659022152] [2024-12-02 14:08:58,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659022152] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:08:58,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:08:58,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 14:08:58,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163071423] [2024-12-02 14:08:58,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:08:58,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:08:58,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:08:58,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:08:58,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:08:58,123 INFO L87 Difference]: Start difference. First operand 1346 states and 1961 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:58,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:08:58,977 INFO L93 Difference]: Finished difference Result 1664 states and 2357 transitions. [2024-12-02 14:08:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:08:58,978 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:08:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:08:58,982 INFO L225 Difference]: With dead ends: 1664 [2024-12-02 14:08:58,982 INFO L226 Difference]: Without dead ends: 1662 [2024-12-02 14:08:58,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:08:58,983 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 90 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:08:58,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 2247 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:08:58,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2024-12-02 14:08:59,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1396. [2024-12-02 14:08:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1092 states have (on average 1.3571428571428572) internal successors, (1482), 1100 states have internal predecessors, (1482), 272 states have call successors, (272), 31 states have call predecessors, (272), 31 states have return successors, (272), 264 states have call predecessors, (272), 272 states have call successors, (272) [2024-12-02 14:08:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2026 transitions. [2024-12-02 14:08:59,100 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2026 transitions. Word has length 300 [2024-12-02 14:08:59,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:08:59,100 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 2026 transitions. [2024-12-02 14:08:59,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:08:59,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2026 transitions. [2024-12-02 14:08:59,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:08:59,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:08:59,102 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:08:59,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 14:08:59,102 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:08:59,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:08:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -169306918, now seen corresponding path program 1 times [2024-12-02 14:08:59,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:08:59,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41025164] [2024-12-02 14:08:59,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:08:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:08:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:09:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:09:51,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:09:51,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41025164] [2024-12-02 14:09:51,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41025164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:09:51,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:09:51,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:09:51,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816285668] [2024-12-02 14:09:51,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:09:51,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:09:51,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:09:51,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:09:51,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:09:51,940 INFO L87 Difference]: Start difference. First operand 1396 states and 2026 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:09:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:09:55,553 INFO L93 Difference]: Finished difference Result 2629 states and 3717 transitions. [2024-12-02 14:09:55,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:09:55,553 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:09:55,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:09:55,558 INFO L225 Difference]: With dead ends: 2629 [2024-12-02 14:09:55,558 INFO L226 Difference]: Without dead ends: 2172 [2024-12-02 14:09:55,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:09:55,559 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 575 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:09:55,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1638 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 14:09:55,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-12-02 14:09:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1411. [2024-12-02 14:09:55,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1107 states have (on average 1.3577235772357723) internal successors, (1503), 1115 states have internal predecessors, (1503), 272 states have call successors, (272), 31 states have call predecessors, (272), 31 states have return successors, (272), 264 states have call predecessors, (272), 272 states have call successors, (272) [2024-12-02 14:09:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 2047 transitions. [2024-12-02 14:09:55,661 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 2047 transitions. Word has length 300 [2024-12-02 14:09:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:09:55,661 INFO L471 AbstractCegarLoop]: Abstraction has 1411 states and 2047 transitions. [2024-12-02 14:09:55,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:09:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 2047 transitions. [2024-12-02 14:09:55,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:09:55,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:09:55,662 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:09:55,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 14:09:55,662 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:09:55,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:09:55,663 INFO L85 PathProgramCache]: Analyzing trace with hash 202308966, now seen corresponding path program 1 times [2024-12-02 14:09:55,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:09:55,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797205133] [2024-12-02 14:09:55,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:09:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:09:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:10:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:10:02,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:10:02,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797205133] [2024-12-02 14:10:02,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797205133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:10:02,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:10:02,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-12-02 14:10:02,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322734371] [2024-12-02 14:10:02,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:10:02,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 14:10:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:10:02,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 14:10:02,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:10:02,798 INFO L87 Difference]: Start difference. First operand 1411 states and 2047 transitions. Second operand has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:10:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:10:09,594 INFO L93 Difference]: Finished difference Result 1960 states and 2765 transitions. [2024-12-02 14:10:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 14:10:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 300 [2024-12-02 14:10:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:10:09,599 INFO L225 Difference]: With dead ends: 1960 [2024-12-02 14:10:09,599 INFO L226 Difference]: Without dead ends: 1958 [2024-12-02 14:10:09,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=427, Invalid=1553, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 14:10:09,600 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 809 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:10:09,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 2354 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 14:10:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-12-02 14:10:09,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1416. [2024-12-02 14:10:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1112 states have (on average 1.3579136690647482) internal successors, (1510), 1120 states have internal predecessors, (1510), 272 states have call successors, (272), 31 states have call predecessors, (272), 31 states have return successors, (272), 264 states have call predecessors, (272), 272 states have call successors, (272) [2024-12-02 14:10:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2054 transitions. [2024-12-02 14:10:09,713 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2054 transitions. Word has length 300 [2024-12-02 14:10:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:10:09,713 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 2054 transitions. [2024-12-02 14:10:09,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:10:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2054 transitions. [2024-12-02 14:10:09,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:10:09,714 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:10:09,715 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:10:09,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 14:10:09,715 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:10:09,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:10:09,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1112253338, now seen corresponding path program 1 times [2024-12-02 14:10:09,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:10:09,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779775047] [2024-12-02 14:10:09,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:10:09,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:10:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:10:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:10:12,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:10:12,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779775047] [2024-12-02 14:10:12,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779775047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:10:12,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:10:12,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:10:12,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171077218] [2024-12-02 14:10:12,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:10:12,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:10:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:10:12,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:10:12,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:10:12,184 INFO L87 Difference]: Start difference. First operand 1416 states and 2054 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:10:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:10:15,079 INFO L93 Difference]: Finished difference Result 1747 states and 2501 transitions. [2024-12-02 14:10:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 14:10:15,080 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 300 [2024-12-02 14:10:15,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:10:15,084 INFO L225 Difference]: With dead ends: 1747 [2024-12-02 14:10:15,084 INFO L226 Difference]: Without dead ends: 1745 [2024-12-02 14:10:15,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=170, Invalid=952, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 14:10:15,085 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 304 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:10:15,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1846 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 14:10:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-12-02 14:10:15,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1585. [2024-12-02 14:10:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1238 states have (on average 1.3336025848142166) internal successors, (1651), 1250 states have internal predecessors, (1651), 304 states have call successors, (304), 42 states have call predecessors, (304), 42 states have return successors, (304), 292 states have call predecessors, (304), 304 states have call successors, (304) [2024-12-02 14:10:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2259 transitions. [2024-12-02 14:10:15,218 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2259 transitions. Word has length 300 [2024-12-02 14:10:15,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:10:15,219 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2259 transitions. [2024-12-02 14:10:15,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:10:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2259 transitions. [2024-12-02 14:10:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:10:15,220 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:10:15,220 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:10:15,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 14:10:15,220 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:10:15,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:10:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1077554712, now seen corresponding path program 1 times [2024-12-02 14:10:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:10:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91187859] [2024-12-02 14:10:15,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:10:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:10:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:10:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:10:16,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:10:16,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91187859] [2024-12-02 14:10:16,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91187859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:10:16,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:10:16,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:10:16,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534616323] [2024-12-02 14:10:16,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:10:16,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:10:16,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:10:16,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:10:16,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:10:16,812 INFO L87 Difference]: Start difference. First operand 1585 states and 2259 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:10:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:10:17,787 INFO L93 Difference]: Finished difference Result 2389 states and 3386 transitions. [2024-12-02 14:10:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:10:17,788 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:10:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:10:17,792 INFO L225 Difference]: With dead ends: 2389 [2024-12-02 14:10:17,792 INFO L226 Difference]: Without dead ends: 1898 [2024-12-02 14:10:17,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:10:17,793 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 155 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:10:17,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 2121 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:10:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2024-12-02 14:10:17,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1616. [2024-12-02 14:10:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1269 states have (on average 1.3278171788810087) internal successors, (1685), 1281 states have internal predecessors, (1685), 304 states have call successors, (304), 42 states have call predecessors, (304), 42 states have return successors, (304), 292 states have call predecessors, (304), 304 states have call successors, (304) [2024-12-02 14:10:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2293 transitions. [2024-12-02 14:10:17,926 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2293 transitions. Word has length 300 [2024-12-02 14:10:17,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:10:17,926 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2293 transitions. [2024-12-02 14:10:17,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:10:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2293 transitions. [2024-12-02 14:10:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:10:17,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:10:17,927 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:10:17,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 14:10:17,928 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:10:17,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:10:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2055789096, now seen corresponding path program 1 times [2024-12-02 14:10:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:10:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834825510] [2024-12-02 14:10:17,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:10:17,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:10:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:10:21,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:10:21,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:10:21,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834825510] [2024-12-02 14:10:21,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834825510] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:10:21,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:10:21,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:10:21,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129440436] [2024-12-02 14:10:21,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:10:21,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:10:21,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:10:21,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:10:21,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:10:21,026 INFO L87 Difference]: Start difference. First operand 1616 states and 2293 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:10:22,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:10:22,191 INFO L93 Difference]: Finished difference Result 2471 states and 3472 transitions. [2024-12-02 14:10:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:10:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:10:22,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:10:22,196 INFO L225 Difference]: With dead ends: 2471 [2024-12-02 14:10:22,196 INFO L226 Difference]: Without dead ends: 1952 [2024-12-02 14:10:22,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:10:22,197 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 191 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:10:22,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 2049 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:10:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2024-12-02 14:10:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1653. [2024-12-02 14:10:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1285 states have (on average 1.3214007782101167) internal successors, (1698), 1299 states have internal predecessors, (1698), 322 states have call successors, (322), 45 states have call predecessors, (322), 45 states have return successors, (322), 308 states have call predecessors, (322), 322 states have call successors, (322) [2024-12-02 14:10:22,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2342 transitions. [2024-12-02 14:10:22,349 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2342 transitions. Word has length 300 [2024-12-02 14:10:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:10:22,349 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2342 transitions. [2024-12-02 14:10:22,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:10:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2342 transitions. [2024-12-02 14:10:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:10:22,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:10:22,351 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:10:22,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 14:10:22,351 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:10:22,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:10:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash 775925418, now seen corresponding path program 1 times [2024-12-02 14:10:22,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:10:22,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37042656] [2024-12-02 14:10:22,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:10:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:10:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:10:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:10:23,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:10:23,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37042656] [2024-12-02 14:10:23,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37042656] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:10:23,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:10:23,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:10:23,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873918900] [2024-12-02 14:10:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:10:23,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:10:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:10:23,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:10:23,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:10:23,772 INFO L87 Difference]: Start difference. First operand 1653 states and 2342 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:10:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:10:24,945 INFO L93 Difference]: Finished difference Result 2480 states and 3474 transitions. [2024-12-02 14:10:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:10:24,946 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:10:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:10:24,949 INFO L225 Difference]: With dead ends: 2480 [2024-12-02 14:10:24,950 INFO L226 Difference]: Without dead ends: 1905 [2024-12-02 14:10:24,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:10:24,952 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 182 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:10:24,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1466 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:10:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-12-02 14:10:25,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1670. [2024-12-02 14:10:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1285 states have (on average 1.311284046692607) internal successors, (1685), 1299 states have internal predecessors, (1685), 336 states have call successors, (336), 48 states have call predecessors, (336), 48 states have return successors, (336), 322 states have call predecessors, (336), 336 states have call successors, (336) [2024-12-02 14:10:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2357 transitions. [2024-12-02 14:10:25,121 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2357 transitions. Word has length 300 [2024-12-02 14:10:25,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:10:25,122 INFO L471 AbstractCegarLoop]: Abstraction has 1670 states and 2357 transitions. [2024-12-02 14:10:25,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:10:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2357 transitions. [2024-12-02 14:10:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:10:25,123 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:10:25,123 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:10:25,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 14:10:25,123 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:10:25,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:10:25,124 INFO L85 PathProgramCache]: Analyzing trace with hash 253394908, now seen corresponding path program 1 times [2024-12-02 14:10:25,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:10:25,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796909948] [2024-12-02 14:10:25,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:10:25,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:10:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:14,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:14,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796909948] [2024-12-02 14:11:14,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796909948] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:14,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:14,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 14:11:14,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661343895] [2024-12-02 14:11:14,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:14,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:11:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:14,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:11:14,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:11:14,456 INFO L87 Difference]: Start difference. First operand 1670 states and 2357 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:18,609 INFO L93 Difference]: Finished difference Result 2863 states and 3964 transitions. [2024-12-02 14:11:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 14:11:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:11:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:18,614 INFO L225 Difference]: With dead ends: 2863 [2024-12-02 14:11:18,614 INFO L226 Difference]: Without dead ends: 2260 [2024-12-02 14:11:18,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:11:18,616 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 540 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:18,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1692 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 14:11:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-12-02 14:11:18,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1696. [2024-12-02 14:11:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1311 states have (on average 1.3157894736842106) internal successors, (1725), 1325 states have internal predecessors, (1725), 336 states have call successors, (336), 48 states have call predecessors, (336), 48 states have return successors, (336), 322 states have call predecessors, (336), 336 states have call successors, (336) [2024-12-02 14:11:18,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2397 transitions. [2024-12-02 14:11:18,773 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2397 transitions. Word has length 300 [2024-12-02 14:11:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:11:18,774 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2397 transitions. [2024-12-02 14:11:18,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:18,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2397 transitions. [2024-12-02 14:11:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 14:11:18,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:11:18,775 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:11:18,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 14:11:18,775 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:11:18,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:11:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 625010792, now seen corresponding path program 1 times [2024-12-02 14:11:18,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:11:18,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126513608] [2024-12-02 14:11:18,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:11:18,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:11:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126513608] [2024-12-02 14:11:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126513608] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:20,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:20,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 14:11:20,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209265768] [2024-12-02 14:11:20,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:20,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:11:20,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:20,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:11:20,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:11:20,512 INFO L87 Difference]: Start difference. First operand 1696 states and 2397 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:21,302 INFO L93 Difference]: Finished difference Result 1863 states and 2606 transitions. [2024-12-02 14:11:21,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:11:21,303 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 300 [2024-12-02 14:11:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:21,307 INFO L225 Difference]: With dead ends: 1863 [2024-12-02 14:11:21,307 INFO L226 Difference]: Without dead ends: 1861 [2024-12-02 14:11:21,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 14:11:21,308 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 215 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:21,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1839 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:11:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2024-12-02 14:11:21,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1693. [2024-12-02 14:11:21,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1308 states have (on average 1.3134556574923548) internal successors, (1718), 1322 states have internal predecessors, (1718), 336 states have call successors, (336), 48 states have call predecessors, (336), 48 states have return successors, (336), 322 states have call predecessors, (336), 336 states have call successors, (336) [2024-12-02 14:11:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2390 transitions. [2024-12-02 14:11:21,460 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2390 transitions. Word has length 300 [2024-12-02 14:11:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:11:21,461 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2390 transitions. [2024-12-02 14:11:21,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:21,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2390 transitions. [2024-12-02 14:11:21,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 14:11:21,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:11:21,462 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:11:21,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 14:11:21,462 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:11:21,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:11:21,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1170561281, now seen corresponding path program 1 times [2024-12-02 14:11:21,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:11:21,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658036427] [2024-12-02 14:11:21,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:11:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:11:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658036427] [2024-12-02 14:11:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658036427] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:21,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:21,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:11:21,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563076455] [2024-12-02 14:11:21,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:21,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:11:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:21,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:11:21,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:11:21,563 INFO L87 Difference]: Start difference. First operand 1693 states and 2390 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:21,894 INFO L93 Difference]: Finished difference Result 3415 states and 4783 transitions. [2024-12-02 14:11:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:11:21,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 302 [2024-12-02 14:11:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:21,899 INFO L225 Difference]: With dead ends: 3415 [2024-12-02 14:11:21,899 INFO L226 Difference]: Without dead ends: 1896 [2024-12-02 14:11:21,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:11:21,902 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 65 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:21,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 880 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:11:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-12-02 14:11:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1745. [2024-12-02 14:11:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1344 states have (on average 1.3050595238095237) internal successors, (1754), 1359 states have internal predecessors, (1754), 348 states have call successors, (348), 52 states have call predecessors, (348), 52 states have return successors, (348), 333 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 14:11:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2450 transitions. [2024-12-02 14:11:22,085 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2450 transitions. Word has length 302 [2024-12-02 14:11:22,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:11:22,085 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2450 transitions. [2024-12-02 14:11:22,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:22,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2450 transitions. [2024-12-02 14:11:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 14:11:22,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:11:22,086 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:11:22,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 14:11:22,087 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:11:22,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:11:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1822573875, now seen corresponding path program 1 times [2024-12-02 14:11:22,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:11:22,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322445421] [2024-12-02 14:11:22,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:11:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:11:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:22,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:22,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322445421] [2024-12-02 14:11:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322445421] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:22,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:11:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682063797] [2024-12-02 14:11:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:22,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:11:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:22,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:11:22,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:11:22,188 INFO L87 Difference]: Start difference. First operand 1745 states and 2450 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:22,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:22,528 INFO L93 Difference]: Finished difference Result 3782 states and 5261 transitions. [2024-12-02 14:11:22,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:11:22,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 302 [2024-12-02 14:11:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:22,534 INFO L225 Difference]: With dead ends: 3782 [2024-12-02 14:11:22,534 INFO L226 Difference]: Without dead ends: 2211 [2024-12-02 14:11:22,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:11:22,536 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 67 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:22,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 826 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:11:22,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2024-12-02 14:11:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2011. [2024-12-02 14:11:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 1588 states have (on average 1.3104534005037782) internal successors, (2081), 1605 states have internal predecessors, (2081), 366 states have call successors, (366), 56 states have call predecessors, (366), 56 states have return successors, (366), 349 states have call predecessors, (366), 366 states have call successors, (366) [2024-12-02 14:11:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2813 transitions. [2024-12-02 14:11:22,722 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2813 transitions. Word has length 302 [2024-12-02 14:11:22,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:11:22,722 INFO L471 AbstractCegarLoop]: Abstraction has 2011 states and 2813 transitions. [2024-12-02 14:11:22,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2813 transitions. [2024-12-02 14:11:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 14:11:22,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:11:22,724 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:11:22,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 14:11:22,724 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:11:22,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:11:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -387751948, now seen corresponding path program 1 times [2024-12-02 14:11:22,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:11:22,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11388019] [2024-12-02 14:11:22,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:11:22,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:11:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:55,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:55,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11388019] [2024-12-02 14:11:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11388019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:55,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:11:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051377454] [2024-12-02 14:11:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:55,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:11:55,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:55,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:11:55,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:11:55,660 INFO L87 Difference]: Start difference. First operand 2011 states and 2813 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:11:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:58,652 INFO L93 Difference]: Finished difference Result 3779 states and 5153 transitions. [2024-12-02 14:11:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:11:58,653 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 302 [2024-12-02 14:11:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:58,660 INFO L225 Difference]: With dead ends: 3779 [2024-12-02 14:11:58,660 INFO L226 Difference]: Without dead ends: 3009 [2024-12-02 14:11:58,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:11:58,662 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 532 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:58,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1519 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 14:11:58,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2024-12-02 14:11:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 1979. [2024-12-02 14:11:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1556 states have (on average 1.306555269922879) internal successors, (2033), 1573 states have internal predecessors, (2033), 366 states have call successors, (366), 56 states have call predecessors, (366), 56 states have return successors, (366), 349 states have call predecessors, (366), 366 states have call successors, (366) [2024-12-02 14:11:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2765 transitions. [2024-12-02 14:11:58,865 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2765 transitions. Word has length 302 [2024-12-02 14:11:58,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:11:58,865 INFO L471 AbstractCegarLoop]: Abstraction has 1979 states and 2765 transitions. [2024-12-02 14:11:58,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 14:11:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2765 transitions. [2024-12-02 14:11:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-12-02 14:11:58,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:11:58,867 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:11:58,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 14:11:58,867 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:11:58,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:11:58,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1202925578, now seen corresponding path program 1 times [2024-12-02 14:11:58,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:11:58,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139403525] [2024-12-02 14:11:58,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:11:58,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:11:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:58,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139403525] [2024-12-02 14:11:58,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139403525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:58,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:58,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:11:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846146682] [2024-12-02 14:11:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:58,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:11:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:58,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:11:58,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:11:58,945 INFO L87 Difference]: Start difference. First operand 1979 states and 2765 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:59,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:59,267 INFO L93 Difference]: Finished difference Result 4600 states and 6303 transitions. [2024-12-02 14:11:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:11:59,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 303 [2024-12-02 14:11:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:59,274 INFO L225 Difference]: With dead ends: 4600 [2024-12-02 14:11:59,274 INFO L226 Difference]: Without dead ends: 2774 [2024-12-02 14:11:59,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:11:59,277 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 43 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:59,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 436 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:11:59,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2024-12-02 14:11:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2708. [2024-12-02 14:11:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2168 states have (on average 1.2670664206642066) internal successors, (2747), 2199 states have internal predecessors, (2747), 446 states have call successors, (446), 93 states have call predecessors, (446), 93 states have return successors, (446), 415 states have call predecessors, (446), 446 states have call successors, (446) [2024-12-02 14:11:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 3639 transitions. [2024-12-02 14:11:59,581 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 3639 transitions. Word has length 303 [2024-12-02 14:11:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:11:59,582 INFO L471 AbstractCegarLoop]: Abstraction has 2708 states and 3639 transitions. [2024-12-02 14:11:59,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:59,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 3639 transitions. [2024-12-02 14:11:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-12-02 14:11:59,583 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:11:59,583 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:11:59,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 14:11:59,584 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:11:59,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:11:59,584 INFO L85 PathProgramCache]: Analyzing trace with hash -14399265, now seen corresponding path program 1 times [2024-12-02 14:11:59,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:11:59,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501941473] [2024-12-02 14:11:59,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:11:59,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:11:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:11:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:11:59,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:11:59,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501941473] [2024-12-02 14:11:59,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501941473] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:11:59,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:11:59,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:11:59,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212811838] [2024-12-02 14:11:59,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:11:59,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:11:59,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:11:59,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:11:59,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:11:59,653 INFO L87 Difference]: Start difference. First operand 2708 states and 3639 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:11:59,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:11:59,951 INFO L93 Difference]: Finished difference Result 5093 states and 6793 transitions. [2024-12-02 14:11:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:11:59,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 303 [2024-12-02 14:11:59,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:11:59,957 INFO L225 Difference]: With dead ends: 5093 [2024-12-02 14:11:59,957 INFO L226 Difference]: Without dead ends: 2538 [2024-12-02 14:11:59,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:11:59,960 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 57 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:11:59,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 441 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:11:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2024-12-02 14:12:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2138. [2024-12-02 14:12:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1712 states have (on average 1.262266355140187) internal successors, (2161), 1728 states have internal predecessors, (2161), 356 states have call successors, (356), 69 states have call predecessors, (356), 69 states have return successors, (356), 340 states have call predecessors, (356), 356 states have call successors, (356) [2024-12-02 14:12:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 2873 transitions. [2024-12-02 14:12:00,163 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 2873 transitions. Word has length 303 [2024-12-02 14:12:00,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:00,164 INFO L471 AbstractCegarLoop]: Abstraction has 2138 states and 2873 transitions. [2024-12-02 14:12:00,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:00,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 2873 transitions. [2024-12-02 14:12:00,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:00,165 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:00,165 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:00,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 14:12:00,165 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:00,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2051201818, now seen corresponding path program 1 times [2024-12-02 14:12:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:00,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449832063] [2024-12-02 14:12:00,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:01,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:01,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449832063] [2024-12-02 14:12:01,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449832063] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:01,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:01,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:12:01,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176988625] [2024-12-02 14:12:01,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:01,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:12:01,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:01,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:12:01,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:12:01,774 INFO L87 Difference]: Start difference. First operand 2138 states and 2873 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:03,551 INFO L93 Difference]: Finished difference Result 3470 states and 4615 transitions. [2024-12-02 14:12:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:12:03,551 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:03,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:03,557 INFO L225 Difference]: With dead ends: 3470 [2024-12-02 14:12:03,557 INFO L226 Difference]: Without dead ends: 2626 [2024-12-02 14:12:03,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:12:03,559 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 297 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:03,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 3182 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 14:12:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2024-12-02 14:12:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2170. [2024-12-02 14:12:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 1744 states have (on average 1.2597477064220184) internal successors, (2197), 1760 states have internal predecessors, (2197), 356 states have call successors, (356), 69 states have call predecessors, (356), 69 states have return successors, (356), 340 states have call predecessors, (356), 356 states have call successors, (356) [2024-12-02 14:12:03,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2909 transitions. [2024-12-02 14:12:03,800 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2909 transitions. Word has length 304 [2024-12-02 14:12:03,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:03,800 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 2909 transitions. [2024-12-02 14:12:03,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2909 transitions. [2024-12-02 14:12:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:03,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:03,802 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:03,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 14:12:03,802 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:03,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:03,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1669776358, now seen corresponding path program 1 times [2024-12-02 14:12:03,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:03,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568272019] [2024-12-02 14:12:03,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:03,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:05,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:05,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568272019] [2024-12-02 14:12:05,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568272019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:05,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:05,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:12:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477762255] [2024-12-02 14:12:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:05,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:12:05,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:05,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:12:05,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:12:05,741 INFO L87 Difference]: Start difference. First operand 2170 states and 2909 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:07,155 INFO L93 Difference]: Finished difference Result 2711 states and 3574 transitions. [2024-12-02 14:12:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:12:07,156 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:07,159 INFO L225 Difference]: With dead ends: 2711 [2024-12-02 14:12:07,160 INFO L226 Difference]: Without dead ends: 2709 [2024-12-02 14:12:07,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:12:07,160 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 151 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:07,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 2802 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:12:07,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2024-12-02 14:12:07,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2142. [2024-12-02 14:12:07,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2142 states, 1726 states have (on average 1.2618771726535343) internal successors, (2178), 1740 states have internal predecessors, (2178), 348 states have call successors, (348), 67 states have call predecessors, (348), 67 states have return successors, (348), 334 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 14:12:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 2874 transitions. [2024-12-02 14:12:07,358 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 2874 transitions. Word has length 304 [2024-12-02 14:12:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:07,358 INFO L471 AbstractCegarLoop]: Abstraction has 2142 states and 2874 transitions. [2024-12-02 14:12:07,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:07,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 2874 transitions. [2024-12-02 14:12:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:07,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:07,360 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:07,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 14:12:07,360 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:07,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 658659108, now seen corresponding path program 1 times [2024-12-02 14:12:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:07,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053776800] [2024-12-02 14:12:07,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:07,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:09,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:09,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053776800] [2024-12-02 14:12:09,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053776800] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:09,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:09,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:12:09,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606636913] [2024-12-02 14:12:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:09,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:12:09,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:09,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:12:09,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:12:09,835 INFO L87 Difference]: Start difference. First operand 2142 states and 2874 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:11,096 INFO L93 Difference]: Finished difference Result 2355 states and 3124 transitions. [2024-12-02 14:12:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:12:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:11,100 INFO L225 Difference]: With dead ends: 2355 [2024-12-02 14:12:11,100 INFO L226 Difference]: Without dead ends: 2353 [2024-12-02 14:12:11,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:12:11,101 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 71 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:11,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2261 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:12:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2024-12-02 14:12:11,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2171. [2024-12-02 14:12:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2171 states, 1755 states have (on average 1.260968660968661) internal successors, (2213), 1769 states have internal predecessors, (2213), 348 states have call successors, (348), 67 states have call predecessors, (348), 67 states have return successors, (348), 334 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 14:12:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2171 states to 2171 states and 2909 transitions. [2024-12-02 14:12:11,308 INFO L78 Accepts]: Start accepts. Automaton has 2171 states and 2909 transitions. Word has length 304 [2024-12-02 14:12:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:11,308 INFO L471 AbstractCegarLoop]: Abstraction has 2171 states and 2909 transitions. [2024-12-02 14:12:11,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2171 states and 2909 transitions. [2024-12-02 14:12:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:11,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:11,310 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:11,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 14:12:11,310 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:11,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:11,310 INFO L85 PathProgramCache]: Analyzing trace with hash 655417576, now seen corresponding path program 1 times [2024-12-02 14:12:11,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:11,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661394795] [2024-12-02 14:12:11,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:11,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:13,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:13,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661394795] [2024-12-02 14:12:13,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661394795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:13,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:13,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:12:13,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624915852] [2024-12-02 14:12:13,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:13,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:12:13,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:13,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:12:13,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:12:13,251 INFO L87 Difference]: Start difference. First operand 2171 states and 2909 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:14,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:14,529 INFO L93 Difference]: Finished difference Result 2482 states and 3282 transitions. [2024-12-02 14:12:14,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:12:14,530 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:14,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:14,533 INFO L225 Difference]: With dead ends: 2482 [2024-12-02 14:12:14,533 INFO L226 Difference]: Without dead ends: 2480 [2024-12-02 14:12:14,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:12:14,534 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 162 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:14,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1623 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:12:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2024-12-02 14:12:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2289. [2024-12-02 14:12:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1835 states have (on average 1.252316076294278) internal successors, (2298), 1851 states have internal predecessors, (2298), 378 states have call successors, (378), 75 states have call predecessors, (378), 75 states have return successors, (378), 362 states have call predecessors, (378), 378 states have call successors, (378) [2024-12-02 14:12:14,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3054 transitions. [2024-12-02 14:12:14,758 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3054 transitions. Word has length 304 [2024-12-02 14:12:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:14,758 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 3054 transitions. [2024-12-02 14:12:14,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:14,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3054 transitions. [2024-12-02 14:12:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:14,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:14,760 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:14,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 14:12:14,760 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:14,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash 81428456, now seen corresponding path program 1 times [2024-12-02 14:12:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:14,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485664318] [2024-12-02 14:12:14,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:14,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:17,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:17,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485664318] [2024-12-02 14:12:17,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485664318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:17,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:17,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:12:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777159184] [2024-12-02 14:12:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:17,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:12:17,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:17,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:12:17,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:12:17,980 INFO L87 Difference]: Start difference. First operand 2289 states and 3054 transitions. Second operand has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:19,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:19,662 INFO L93 Difference]: Finished difference Result 3204 states and 4146 transitions. [2024-12-02 14:12:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:12:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:19,667 INFO L225 Difference]: With dead ends: 3204 [2024-12-02 14:12:19,667 INFO L226 Difference]: Without dead ends: 3202 [2024-12-02 14:12:19,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:12:19,668 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 177 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:19,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 3133 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 14:12:19,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2024-12-02 14:12:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2307. [2024-12-02 14:12:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1853 states have (on average 1.2525634106853751) internal successors, (2321), 1869 states have internal predecessors, (2321), 378 states have call successors, (378), 75 states have call predecessors, (378), 75 states have return successors, (378), 362 states have call predecessors, (378), 378 states have call successors, (378) [2024-12-02 14:12:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3077 transitions. [2024-12-02 14:12:19,899 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3077 transitions. Word has length 304 [2024-12-02 14:12:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:19,899 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 3077 transitions. [2024-12-02 14:12:19,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3077 transitions. [2024-12-02 14:12:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:19,901 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:19,901 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:19,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 14:12:19,901 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:19,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash -929688794, now seen corresponding path program 1 times [2024-12-02 14:12:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:19,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780522765] [2024-12-02 14:12:19,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:23,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:23,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780522765] [2024-12-02 14:12:23,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780522765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:23,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:23,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 14:12:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075329198] [2024-12-02 14:12:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:23,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 14:12:23,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:23,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 14:12:23,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:12:23,764 INFO L87 Difference]: Start difference. First operand 2307 states and 3077 transitions. Second operand has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:27,755 INFO L93 Difference]: Finished difference Result 3529 states and 4525 transitions. [2024-12-02 14:12:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 14:12:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:27,760 INFO L225 Difference]: With dead ends: 3529 [2024-12-02 14:12:27,760 INFO L226 Difference]: Without dead ends: 3527 [2024-12-02 14:12:27,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 14:12:27,761 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 390 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:27,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 3175 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 14:12:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2024-12-02 14:12:27,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 2307. [2024-12-02 14:12:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1853 states have (on average 1.2525634106853751) internal successors, (2321), 1869 states have internal predecessors, (2321), 378 states have call successors, (378), 75 states have call predecessors, (378), 75 states have return successors, (378), 362 states have call predecessors, (378), 378 states have call successors, (378) [2024-12-02 14:12:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3077 transitions. [2024-12-02 14:12:27,999 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3077 transitions. Word has length 304 [2024-12-02 14:12:27,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:27,999 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 3077 transitions. [2024-12-02 14:12:27,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3077 transitions. [2024-12-02 14:12:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:28,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:28,002 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:28,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 14:12:28,002 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:28,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:28,002 INFO L85 PathProgramCache]: Analyzing trace with hash -572790106, now seen corresponding path program 1 times [2024-12-02 14:12:28,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:28,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886646119] [2024-12-02 14:12:28,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:30,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:30,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886646119] [2024-12-02 14:12:30,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886646119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:30,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:30,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:12:30,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423250675] [2024-12-02 14:12:30,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:30,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:12:30,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:30,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:12:30,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:12:30,088 INFO L87 Difference]: Start difference. First operand 2307 states and 3077 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:31,340 INFO L93 Difference]: Finished difference Result 2543 states and 3351 transitions. [2024-12-02 14:12:31,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:12:31,341 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:31,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:31,345 INFO L225 Difference]: With dead ends: 2543 [2024-12-02 14:12:31,345 INFO L226 Difference]: Without dead ends: 2541 [2024-12-02 14:12:31,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:12:31,346 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 153 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:31,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1780 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:12:31,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2024-12-02 14:12:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2323. [2024-12-02 14:12:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2323 states, 1869 states have (on average 1.250936329588015) internal successors, (2338), 1885 states have internal predecessors, (2338), 378 states have call successors, (378), 75 states have call predecessors, (378), 75 states have return successors, (378), 362 states have call predecessors, (378), 378 states have call successors, (378) [2024-12-02 14:12:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3094 transitions. [2024-12-02 14:12:31,595 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3094 transitions. Word has length 304 [2024-12-02 14:12:31,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:31,595 INFO L471 AbstractCegarLoop]: Abstraction has 2323 states and 3094 transitions. [2024-12-02 14:12:31,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:31,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3094 transitions. [2024-12-02 14:12:31,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:31,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:31,597 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:31,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 14:12:31,597 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:31,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:31,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2133829288, now seen corresponding path program 1 times [2024-12-02 14:12:31,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:31,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900486614] [2024-12-02 14:12:31,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:31,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:33,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:33,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900486614] [2024-12-02 14:12:33,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900486614] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:33,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:33,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 14:12:33,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571336009] [2024-12-02 14:12:33,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:33,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 14:12:33,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:33,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 14:12:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:12:33,660 INFO L87 Difference]: Start difference. First operand 2323 states and 3094 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:34,923 INFO L93 Difference]: Finished difference Result 2650 states and 3475 transitions. [2024-12-02 14:12:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:12:34,923 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:34,927 INFO L225 Difference]: With dead ends: 2650 [2024-12-02 14:12:34,927 INFO L226 Difference]: Without dead ends: 2648 [2024-12-02 14:12:34,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:12:34,928 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 133 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:34,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2113 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:12:34,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2024-12-02 14:12:35,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2353. [2024-12-02 14:12:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 1899 states have (on average 1.2480252764612954) internal successors, (2370), 1915 states have internal predecessors, (2370), 378 states have call successors, (378), 75 states have call predecessors, (378), 75 states have return successors, (378), 362 states have call predecessors, (378), 378 states have call successors, (378) [2024-12-02 14:12:35,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3126 transitions. [2024-12-02 14:12:35,163 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3126 transitions. Word has length 304 [2024-12-02 14:12:35,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:35,163 INFO L471 AbstractCegarLoop]: Abstraction has 2353 states and 3126 transitions. [2024-12-02 14:12:35,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:35,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3126 transitions. [2024-12-02 14:12:35,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:35,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:35,164 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:35,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 14:12:35,165 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:35,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1559840168, now seen corresponding path program 1 times [2024-12-02 14:12:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:35,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726253480] [2024-12-02 14:12:35,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:35,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:39,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:39,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726253480] [2024-12-02 14:12:39,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726253480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:39,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:39,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:12:39,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084673760] [2024-12-02 14:12:39,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:39,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:12:39,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:39,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:12:39,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:12:39,175 INFO L87 Difference]: Start difference. First operand 2353 states and 3126 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:40,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:40,290 INFO L93 Difference]: Finished difference Result 2640 states and 3445 transitions. [2024-12-02 14:12:40,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:12:40,291 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:40,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:40,294 INFO L225 Difference]: With dead ends: 2640 [2024-12-02 14:12:40,294 INFO L226 Difference]: Without dead ends: 2638 [2024-12-02 14:12:40,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:12:40,295 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 97 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:40,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 2558 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 14:12:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2024-12-02 14:12:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 2259. [2024-12-02 14:12:40,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 1813 states have (on average 1.2553778268063982) internal successors, (2276), 1827 states have internal predecessors, (2276), 372 states have call successors, (372), 73 states have call predecessors, (372), 73 states have return successors, (372), 358 states have call predecessors, (372), 372 states have call successors, (372) [2024-12-02 14:12:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 3020 transitions. [2024-12-02 14:12:40,521 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 3020 transitions. Word has length 304 [2024-12-02 14:12:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:40,521 INFO L471 AbstractCegarLoop]: Abstraction has 2259 states and 3020 transitions. [2024-12-02 14:12:40,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:40,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 3020 transitions. [2024-12-02 14:12:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 14:12:40,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:40,522 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:40,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 14:12:40,523 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:40,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:40,523 INFO L85 PathProgramCache]: Analyzing trace with hash 221977066, now seen corresponding path program 1 times [2024-12-02 14:12:40,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:40,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843890266] [2024-12-02 14:12:40,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:40,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-12-02 14:12:43,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:43,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843890266] [2024-12-02 14:12:43,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843890266] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:12:43,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:12:43,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 14:12:43,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107798409] [2024-12-02 14:12:43,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:12:43,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:12:43,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:12:43,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:12:43,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:12:43,812 INFO L87 Difference]: Start difference. First operand 2259 states and 3020 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:44,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:12:44,828 INFO L93 Difference]: Finished difference Result 2540 states and 3330 transitions. [2024-12-02 14:12:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 14:12:44,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 304 [2024-12-02 14:12:44,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:12:44,832 INFO L225 Difference]: With dead ends: 2540 [2024-12-02 14:12:44,833 INFO L226 Difference]: Without dead ends: 2538 [2024-12-02 14:12:44,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:12:44,833 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 92 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:12:44,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2299 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:12:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2024-12-02 14:12:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2242. [2024-12-02 14:12:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1796 states have (on average 1.255011135857461) internal successors, (2254), 1810 states have internal predecessors, (2254), 372 states have call successors, (372), 73 states have call predecessors, (372), 73 states have return successors, (372), 358 states have call predecessors, (372), 372 states have call successors, (372) [2024-12-02 14:12:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2998 transitions. [2024-12-02 14:12:45,059 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2998 transitions. Word has length 304 [2024-12-02 14:12:45,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:12:45,059 INFO L471 AbstractCegarLoop]: Abstraction has 2242 states and 2998 transitions. [2024-12-02 14:12:45,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 14:12:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2998 transitions. [2024-12-02 14:12:45,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 14:12:45,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:12:45,061 INFO L218 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:12:45,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 14:12:45,061 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:12:45,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:12:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1207656791, now seen corresponding path program 1 times [2024-12-02 14:12:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:12:45,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761396563] [2024-12-02 14:12:45,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:12:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 102 proven. 426 refuted. 0 times theorem prover too weak. 3984 trivial. 0 not checked. [2024-12-02 14:12:46,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:12:46,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761396563] [2024-12-02 14:12:46,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761396563] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:12:46,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811891544] [2024-12-02 14:12:46,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:12:46,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:12:46,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:12:46,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:12:46,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e1ee84-5497-4ed4-949e-ea45fffe4ecd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:12:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:12:46,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-12-02 14:12:46,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:12:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 1923 proven. 660 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2024-12-02 14:12:50,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:13:24,457 WARN L286 SmtUtils]: Spent 14.39s on a formula simplification. DAG size of input: 45 DAG size of output: 41 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2024-12-02 14:13:30,035 WARN L286 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 30 DAG size of output: 23 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2024-12-02 14:14:08,460 WARN L286 SmtUtils]: Spent 8.94s on a formula simplification. DAG size of input: 30 DAG size of output: 23 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne)