./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.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_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c66ddf4ed963c9002160029fe33b5c34d87306e43d6877b57e0974d5eaabbb18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:13:28,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:13:28,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:13:28,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:13:28,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:13:28,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:13:28,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:13:28,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:13:28,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:13:28,209 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:13:28,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:13:28,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:13:28,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:13:28,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:13:28,210 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:13:28,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:13:28,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:13:28,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:13:28,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:13:28,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:13:28,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:13:28,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:13:28,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:13:28,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:13:28,212 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:13:28,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:13:28,212 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:13:28,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:13:28,213 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:13:28,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:28,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:28,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:28,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:28,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:13:28,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:28,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:28,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:28,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:28,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:13:28,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:13:28,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:13:28,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:13:28,216 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_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c66ddf4ed963c9002160029fe33b5c34d87306e43d6877b57e0974d5eaabbb18 [2024-11-28 03:13:28,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:13:28,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:13:28,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:13:28,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:13:28,551 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:13:28,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i [2024-11-28 03:13:31,707 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/data/8663f5185/d1d935b57be4427a8562d78cfa3a1f72/FLAG5573b27c2 [2024-11-28 03:13:32,260 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:13:32,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i [2024-11-28 03:13:32,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/data/8663f5185/d1d935b57be4427a8562d78cfa3a1f72/FLAG5573b27c2 [2024-11-28 03:13:32,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/data/8663f5185/d1d935b57be4427a8562d78cfa3a1f72 [2024-11-28 03:13:32,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:13:32,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:13:32,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:32,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:13:32,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:13:32,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:32" (1/1) ... [2024-11-28 03:13:32,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53172f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32, skipping insertion in model container [2024-11-28 03:13:32,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:32" (1/1) ... [2024-11-28 03:13:32,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:13:32,646 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_01b01a5e-c094-4e44-b8e1-caa9787a1be7/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i[916,929] [2024-11-28 03:13:33,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:33,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:13:33,065 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_01b01a5e-c094-4e44-b8e1-caa9787a1be7/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-63.i[916,929] [2024-11-28 03:13:33,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:33,295 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:13:33,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33 WrapperNode [2024-11-28 03:13:33,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:33,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:33,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:13:33,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:13:33,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,555 INFO L138 Inliner]: procedures = 26, calls = 81, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 741 [2024-11-28 03:13:33,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:33,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:13:33,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:13:33,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:13:33,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,595 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,717 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:13:33,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:13:33,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:13:33,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:13:33,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:13:33,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (1/1) ... [2024-11-28 03:13:33,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:33,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:33,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:13:33,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b01a5e-c094-4e44-b8e1-caa9787a1be7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:13:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:13:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:13:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:13:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:13:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:13:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:13:34,202 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:13:34,204 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:13:36,505 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-28 03:13:36,505 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:13:36,540 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:13:36,540 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:13:36,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:36 BoogieIcfgContainer [2024-11-28 03:13:36,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:13:36,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:13:36,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:13:36,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:13:36,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:32" (1/3) ... [2024-11-28 03:13:36,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5597c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:36, skipping insertion in model container [2024-11-28 03:13:36,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:33" (2/3) ... [2024-11-28 03:13:36,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5597c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:36, skipping insertion in model container [2024-11-28 03:13:36,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:36" (3/3) ... [2024-11-28 03:13:36,559 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-63.i [2024-11-28 03:13:36,580 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:13:36,583 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-63.i that has 2 procedures, 280 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:13:36,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:36,720 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;@5a85c98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:36,720 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:13:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 280 states, 209 states have (on average 1.5311004784688995) internal successors, (320), 210 states have internal predecessors, (320), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:13:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:36,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:36,780 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:36,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:36,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1645895732, now seen corresponding path program 1 times [2024-11-28 03:13:36,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:36,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466152409] [2024-11-28 03:13:36,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:36,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:38,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:38,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466152409] [2024-11-28 03:13:38,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466152409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:38,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:38,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:38,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946188439] [2024-11-28 03:13:38,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:38,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:38,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:38,586 INFO L87 Difference]: Start difference. First operand has 280 states, 209 states have (on average 1.5311004784688995) internal successors, (320), 210 states have internal predecessors, (320), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:38,936 INFO L93 Difference]: Finished difference Result 726 states and 1267 transitions. [2024-11-28 03:13:38,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:38,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:38,963 INFO L225 Difference]: With dead ends: 726 [2024-11-28 03:13:38,964 INFO L226 Difference]: Without dead ends: 449 [2024-11-28 03:13:38,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:38,979 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 260 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:38,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 850 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:13:39,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-28 03:13:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 446. [2024-11-28 03:13:39,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 367 states have (on average 1.550408719346049) internal successors, (569), 368 states have internal predecessors, (569), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:13:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 721 transitions. [2024-11-28 03:13:39,142 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 721 transitions. Word has length 471 [2024-11-28 03:13:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:39,145 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 721 transitions. [2024-11-28 03:13:39,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 721 transitions. [2024-11-28 03:13:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:39,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:39,166 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:39,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:13:39,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:39,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash -691955574, now seen corresponding path program 1 times [2024-11-28 03:13:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:39,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443329680] [2024-11-28 03:13:39,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:39,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:39,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443329680] [2024-11-28 03:13:39,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443329680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:39,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:39,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:39,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636402262] [2024-11-28 03:13:39,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:39,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:39,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:39,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:39,981 INFO L87 Difference]: Start difference. First operand 446 states and 721 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:40,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:40,255 INFO L93 Difference]: Finished difference Result 1320 states and 2135 transitions. [2024-11-28 03:13:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:40,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:40,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:40,273 INFO L225 Difference]: With dead ends: 1320 [2024-11-28 03:13:40,275 INFO L226 Difference]: Without dead ends: 877 [2024-11-28 03:13:40,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:40,278 INFO L435 NwaCegarLoop]: 664 mSDtfsCounter, 417 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:40,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1086 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:13:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-28 03:13:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 554. [2024-11-28 03:13:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 475 states have (on average 1.5726315789473684) internal successors, (747), 476 states have internal predecessors, (747), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:13:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 899 transitions. [2024-11-28 03:13:40,411 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 899 transitions. Word has length 471 [2024-11-28 03:13:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:40,412 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 899 transitions. [2024-11-28 03:13:40,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:40,413 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 899 transitions. [2024-11-28 03:13:40,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:40,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:40,431 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:40,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:13:40,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:40,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:40,433 INFO L85 PathProgramCache]: Analyzing trace with hash 184063432, now seen corresponding path program 1 times [2024-11-28 03:13:40,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:40,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204656181] [2024-11-28 03:13:40,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:40,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204656181] [2024-11-28 03:13:41,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204656181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:41,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:41,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:41,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362237180] [2024-11-28 03:13:41,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:41,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:41,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:41,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:41,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:41,094 INFO L87 Difference]: Start difference. First operand 554 states and 899 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:41,316 INFO L93 Difference]: Finished difference Result 1632 states and 2647 transitions. [2024-11-28 03:13:41,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:41,326 INFO L225 Difference]: With dead ends: 1632 [2024-11-28 03:13:41,326 INFO L226 Difference]: Without dead ends: 1081 [2024-11-28 03:13:41,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:41,329 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 417 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:41,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 853 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:13:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-28 03:13:41,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 792. [2024-11-28 03:13:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 713 states have (on average 1.600280504908836) internal successors, (1141), 714 states have internal predecessors, (1141), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 03:13:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1293 transitions. [2024-11-28 03:13:41,439 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1293 transitions. Word has length 471 [2024-11-28 03:13:41,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:41,441 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1293 transitions. [2024-11-28 03:13:41,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1293 transitions. [2024-11-28 03:13:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:41,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:41,459 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:41,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:13:41,459 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:41,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash -169024950, now seen corresponding path program 1 times [2024-11-28 03:13:41,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:41,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094840958] [2024-11-28 03:13:41,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:42,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:42,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094840958] [2024-11-28 03:13:42,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094840958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:42,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:42,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:42,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120985562] [2024-11-28 03:13:42,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:42,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:42,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:42,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:42,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:42,786 INFO L87 Difference]: Start difference. First operand 792 states and 1293 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-28 03:13:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:43,716 INFO L93 Difference]: Finished difference Result 2987 states and 4881 transitions. [2024-11-28 03:13:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 471 [2024-11-28 03:13:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:43,732 INFO L225 Difference]: With dead ends: 2987 [2024-11-28 03:13:43,733 INFO L226 Difference]: Without dead ends: 2198 [2024-11-28 03:13:43,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:13:43,737 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 644 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:43,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1973 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:13:43,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2024-11-28 03:13:43,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 932. [2024-11-28 03:13:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 783 states have (on average 1.5670498084291187) internal successors, (1227), 784 states have internal predecessors, (1227), 144 states have call successors, (144), 4 states have call predecessors, (144), 4 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 03:13:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1515 transitions. [2024-11-28 03:13:43,932 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1515 transitions. Word has length 471 [2024-11-28 03:13:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:43,937 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1515 transitions. [2024-11-28 03:13:43,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-28 03:13:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1515 transitions. [2024-11-28 03:13:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:43,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:43,959 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:43,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:13:43,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:43,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:43,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1883502994, now seen corresponding path program 1 times [2024-11-28 03:13:43,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:43,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006723374] [2024-11-28 03:13:43,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:43,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:45,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006723374] [2024-11-28 03:13:45,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006723374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:45,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:45,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:45,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940985506] [2024-11-28 03:13:45,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:45,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:45,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:45,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:45,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:45,425 INFO L87 Difference]: Start difference. First operand 932 states and 1515 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:46,226 INFO L93 Difference]: Finished difference Result 2939 states and 4803 transitions. [2024-11-28 03:13:46,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:13:46,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:46,246 INFO L225 Difference]: With dead ends: 2939 [2024-11-28 03:13:46,247 INFO L226 Difference]: Without dead ends: 2150 [2024-11-28 03:13:46,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:13:46,250 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 781 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:46,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1595 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:13:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-28 03:13:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1162. [2024-11-28 03:13:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1013 states have (on average 1.5745310957551826) internal successors, (1595), 1014 states have internal predecessors, (1595), 144 states have call successors, (144), 4 states have call predecessors, (144), 4 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 03:13:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1883 transitions. [2024-11-28 03:13:46,373 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1883 transitions. Word has length 471 [2024-11-28 03:13:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:46,375 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1883 transitions. [2024-11-28 03:13:46,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1883 transitions. [2024-11-28 03:13:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:46,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:46,393 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:46,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:13:46,393 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:46,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1517977964, now seen corresponding path program 1 times [2024-11-28 03:13:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:46,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57298690] [2024-11-28 03:13:46,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:46,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:47,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:47,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57298690] [2024-11-28 03:13:47,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57298690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:47,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:47,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488687528] [2024-11-28 03:13:47,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:47,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:47,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:47,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:47,386 INFO L87 Difference]: Start difference. First operand 1162 states and 1883 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:48,571 INFO L93 Difference]: Finished difference Result 3065 states and 4961 transitions. [2024-11-28 03:13:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:48,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:48,588 INFO L225 Difference]: With dead ends: 3065 [2024-11-28 03:13:48,588 INFO L226 Difference]: Without dead ends: 2276 [2024-11-28 03:13:48,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:13:48,592 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 697 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:48,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 2218 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:13:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2024-11-28 03:13:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1288. [2024-11-28 03:13:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1139 states have (on average 1.5812115891132572) internal successors, (1801), 1140 states have internal predecessors, (1801), 144 states have call successors, (144), 4 states have call predecessors, (144), 4 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 03:13:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 2089 transitions. [2024-11-28 03:13:48,721 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 2089 transitions. Word has length 471 [2024-11-28 03:13:48,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:48,722 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 2089 transitions. [2024-11-28 03:13:48,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:48,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 2089 transitions. [2024-11-28 03:13:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:48,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:48,736 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:48,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:13:48,736 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:48,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:48,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1912344750, now seen corresponding path program 1 times [2024-11-28 03:13:48,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:48,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710928337] [2024-11-28 03:13:48,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:48,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:51,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:51,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710928337] [2024-11-28 03:13:51,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710928337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:51,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:51,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:13:51,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257461183] [2024-11-28 03:13:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:51,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:13:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:51,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:13:51,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:13:51,938 INFO L87 Difference]: Start difference. First operand 1288 states and 2089 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:53,484 INFO L93 Difference]: Finished difference Result 3757 states and 6026 transitions. [2024-11-28 03:13:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:13:53,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:53,502 INFO L225 Difference]: With dead ends: 3757 [2024-11-28 03:13:53,502 INFO L226 Difference]: Without dead ends: 2850 [2024-11-28 03:13:53,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:13:53,506 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 1164 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:53,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1764 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:13:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-11-28 03:13:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2327. [2024-11-28 03:13:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2122 states have (on average 1.5749293119698398) internal successors, (3342), 2127 states have internal predecessors, (3342), 195 states have call successors, (195), 9 states have call predecessors, (195), 9 states have return successors, (195), 190 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-28 03:13:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3732 transitions. [2024-11-28 03:13:53,675 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3732 transitions. Word has length 471 [2024-11-28 03:13:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:53,677 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3732 transitions. [2024-11-28 03:13:53,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3732 transitions. [2024-11-28 03:13:53,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:53,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:53,686 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:53,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:13:53,686 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:53,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1372532140, now seen corresponding path program 1 times [2024-11-28 03:13:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:53,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609254474] [2024-11-28 03:13:53,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:53,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:13:54,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:54,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609254474] [2024-11-28 03:13:54,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609254474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:54,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:54,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:54,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519029768] [2024-11-28 03:13:54,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:54,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:54,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:54,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:54,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:54,042 INFO L87 Difference]: Start difference. First operand 2327 states and 3732 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:54,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:54,382 INFO L93 Difference]: Finished difference Result 4640 states and 7445 transitions. [2024-11-28 03:13:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:54,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:13:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:54,402 INFO L225 Difference]: With dead ends: 4640 [2024-11-28 03:13:54,402 INFO L226 Difference]: Without dead ends: 2706 [2024-11-28 03:13:54,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:54,408 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 393 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:54,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1048 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:13:54,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2024-11-28 03:13:54,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2652. [2024-11-28 03:13:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 2368 states have (on average 1.554054054054054) internal successors, (3680), 2375 states have internal predecessors, (3680), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-28 03:13:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 4222 transitions. [2024-11-28 03:13:54,704 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 4222 transitions. Word has length 471 [2024-11-28 03:13:54,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:54,707 INFO L471 AbstractCegarLoop]: Abstraction has 2652 states and 4222 transitions. [2024-11-28 03:13:54,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:13:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 4222 transitions. [2024-11-28 03:13:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:13:54,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:54,720 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:54,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:13:54,720 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:54,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:54,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1302192, now seen corresponding path program 1 times [2024-11-28 03:13:54,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:54,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204681876] [2024-11-28 03:13:54,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:54,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:04,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:04,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204681876] [2024-11-28 03:14:04,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204681876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:04,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:04,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:14:04,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962327800] [2024-11-28 03:14:04,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:04,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:14:04,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:04,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:14:04,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:14:04,057 INFO L87 Difference]: Start difference. First operand 2652 states and 4222 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2024-11-28 03:14:08,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:08,529 INFO L93 Difference]: Finished difference Result 9224 states and 14738 transitions. [2024-11-28 03:14:08,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:14:08,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 471 [2024-11-28 03:14:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:08,565 INFO L225 Difference]: With dead ends: 9224 [2024-11-28 03:14:08,565 INFO L226 Difference]: Without dead ends: 6721 [2024-11-28 03:14:08,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:14:08,573 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 1916 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:08,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 1920 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 03:14:08,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2024-11-28 03:14:08,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 2755. [2024-11-28 03:14:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2471 states have (on average 1.5515985430999595) internal successors, (3834), 2478 states have internal predecessors, (3834), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-28 03:14:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 4376 transitions. [2024-11-28 03:14:08,835 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 4376 transitions. Word has length 471 [2024-11-28 03:14:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:08,836 INFO L471 AbstractCegarLoop]: Abstraction has 2755 states and 4376 transitions. [2024-11-28 03:14:08,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 3 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2024-11-28 03:14:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 4376 transitions. [2024-11-28 03:14:08,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:14:08,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:08,845 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:08,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:14:08,846 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:08,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:08,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1687482030, now seen corresponding path program 1 times [2024-11-28 03:14:08,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:08,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618084067] [2024-11-28 03:14:08,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:11,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:11,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618084067] [2024-11-28 03:14:11,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618084067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:11,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:11,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955483462] [2024-11-28 03:14:11,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:11,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:11,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:11,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:11,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:11,781 INFO L87 Difference]: Start difference. First operand 2755 states and 4376 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-28 03:14:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:13,737 INFO L93 Difference]: Finished difference Result 6506 states and 10337 transitions. [2024-11-28 03:14:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:13,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 471 [2024-11-28 03:14:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:13,769 INFO L225 Difference]: With dead ends: 6506 [2024-11-28 03:14:13,769 INFO L226 Difference]: Without dead ends: 4277 [2024-11-28 03:14:13,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:14:13,775 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 648 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:13,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1257 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:14:13,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4277 states. [2024-11-28 03:14:13,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4277 to 2779. [2024-11-28 03:14:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2495 states have (on average 1.5486973947895792) internal successors, (3864), 2502 states have internal predecessors, (3864), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-28 03:14:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 4406 transitions. [2024-11-28 03:14:14,014 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 4406 transitions. Word has length 471 [2024-11-28 03:14:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:14,015 INFO L471 AbstractCegarLoop]: Abstraction has 2779 states and 4406 transitions. [2024-11-28 03:14:14,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-11-28 03:14:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 4406 transitions. [2024-11-28 03:14:14,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:14:14,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:14,023 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:14,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:14:14,023 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:14,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:14,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2126405008, now seen corresponding path program 1 times [2024-11-28 03:14:14,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:14,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543178037] [2024-11-28 03:14:14,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:24,256 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:24,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:24,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543178037] [2024-11-28 03:14:24,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543178037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:24,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:24,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:14:24,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625735340] [2024-11-28 03:14:24,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:24,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:14:24,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:24,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:14:24,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:14:24,261 INFO L87 Difference]: Start difference. First operand 2779 states and 4406 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:28,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:28,063 INFO L93 Difference]: Finished difference Result 7055 states and 11143 transitions. [2024-11-28 03:14:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:14:28,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:14:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:28,081 INFO L225 Difference]: With dead ends: 7055 [2024-11-28 03:14:28,081 INFO L226 Difference]: Without dead ends: 4898 [2024-11-28 03:14:28,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:14:28,087 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 1692 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:28,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 2340 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:14:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-28 03:14:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4097. [2024-11-28 03:14:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4097 states, 3813 states have (on average 1.5630736952530815) internal successors, (5960), 3820 states have internal predecessors, (5960), 271 states have call successors, (271), 12 states have call predecessors, (271), 12 states have return successors, (271), 264 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-28 03:14:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 6502 transitions. [2024-11-28 03:14:28,355 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 6502 transitions. Word has length 471 [2024-11-28 03:14:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:28,356 INFO L471 AbstractCegarLoop]: Abstraction has 4097 states and 6502 transitions. [2024-11-28 03:14:28,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 6502 transitions. [2024-11-28 03:14:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-28 03:14:28,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:28,375 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:28,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:14:28,375 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:28,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash 754597710, now seen corresponding path program 1 times [2024-11-28 03:14:28,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:28,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235034139] [2024-11-28 03:14:28,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:28,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:35,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:35,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:35,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235034139] [2024-11-28 03:14:35,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235034139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:35,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:35,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:14:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617280270] [2024-11-28 03:14:35,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:35,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:14:35,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:35,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:14:35,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:14:35,136 INFO L87 Difference]: Start difference. First operand 4097 states and 6502 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:38,920 INFO L93 Difference]: Finished difference Result 9377 states and 14861 transitions. [2024-11-28 03:14:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:14:38,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 471 [2024-11-28 03:14:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:38,938 INFO L225 Difference]: With dead ends: 9377 [2024-11-28 03:14:38,938 INFO L226 Difference]: Without dead ends: 6141 [2024-11-28 03:14:38,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:14:38,944 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 1479 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:38,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2001 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:14:38,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2024-11-28 03:14:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 3901. [2024-11-28 03:14:39,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 3592 states have (on average 1.5570712694877507) internal successors, (5593), 3602 states have internal predecessors, (5593), 289 states have call successors, (289), 19 states have call predecessors, (289), 19 states have return successors, (289), 279 states have call predecessors, (289), 289 states have call successors, (289) [2024-11-28 03:14:39,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 6171 transitions. [2024-11-28 03:14:39,198 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 6171 transitions. Word has length 471 [2024-11-28 03:14:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:39,199 INFO L471 AbstractCegarLoop]: Abstraction has 3901 states and 6171 transitions. [2024-11-28 03:14:39,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 6171 transitions. [2024-11-28 03:14:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-28 03:14:39,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:39,208 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:39,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:14:39,209 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:39,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:39,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1837755777, now seen corresponding path program 1 times [2024-11-28 03:14:39,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:39,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874896149] [2024-11-28 03:14:39,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:39,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:39,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:39,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874896149] [2024-11-28 03:14:39,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874896149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:39,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:39,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:39,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416719177] [2024-11-28 03:14:39,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:39,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:39,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:39,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:39,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:39,436 INFO L87 Difference]: Start difference. First operand 3901 states and 6171 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:39,678 INFO L93 Difference]: Finished difference Result 6441 states and 10188 transitions. [2024-11-28 03:14:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-28 03:14:39,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:39,689 INFO L225 Difference]: With dead ends: 6441 [2024-11-28 03:14:39,689 INFO L226 Difference]: Without dead ends: 2934 [2024-11-28 03:14:39,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:39,695 INFO L435 NwaCegarLoop]: 657 mSDtfsCounter, 260 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:39,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1073 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:39,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2024-11-28 03:14:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2929. [2024-11-28 03:14:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2642 states have (on average 1.5401211203633611) internal successors, (4069), 2648 states have internal predecessors, (4069), 265 states have call successors, (265), 21 states have call predecessors, (265), 21 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-28 03:14:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 4599 transitions. [2024-11-28 03:14:39,862 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 4599 transitions. Word has length 472 [2024-11-28 03:14:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:39,862 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 4599 transitions. [2024-11-28 03:14:39,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 4599 transitions. [2024-11-28 03:14:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-28 03:14:39,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:39,869 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:39,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:14:39,870 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:39,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1105788351, now seen corresponding path program 1 times [2024-11-28 03:14:39,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:39,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819461831] [2024-11-28 03:14:39,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:39,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:40,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:40,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819461831] [2024-11-28 03:14:40,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819461831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:40,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:40,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:40,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293993648] [2024-11-28 03:14:40,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:40,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:40,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:40,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:40,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:40,809 INFO L87 Difference]: Start difference. First operand 2929 states and 4599 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:41,468 INFO L93 Difference]: Finished difference Result 5430 states and 8557 transitions. [2024-11-28 03:14:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-28 03:14:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:41,481 INFO L225 Difference]: With dead ends: 5430 [2024-11-28 03:14:41,481 INFO L226 Difference]: Without dead ends: 3122 [2024-11-28 03:14:41,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:14:41,488 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 628 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:41,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 2374 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:14:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2024-11-28 03:14:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2987. [2024-11-28 03:14:41,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 2700 states have (on average 1.5407407407407407) internal successors, (4160), 2706 states have internal predecessors, (4160), 265 states have call successors, (265), 21 states have call predecessors, (265), 21 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-28 03:14:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 4690 transitions. [2024-11-28 03:14:41,665 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 4690 transitions. Word has length 472 [2024-11-28 03:14:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:41,665 INFO L471 AbstractCegarLoop]: Abstraction has 2987 states and 4690 transitions. [2024-11-28 03:14:41,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 4690 transitions. [2024-11-28 03:14:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:14:41,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:41,673 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:41,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:14:41,673 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:41,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1604595822, now seen corresponding path program 1 times [2024-11-28 03:14:41,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:41,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704232442] [2024-11-28 03:14:41,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:41,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704232442] [2024-11-28 03:14:42,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704232442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:42,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:42,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:14:42,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827227132] [2024-11-28 03:14:42,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:42,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:42,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:42,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:42,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:42,558 INFO L87 Difference]: Start difference. First operand 2987 states and 4690 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:43,143 INFO L93 Difference]: Finished difference Result 9770 states and 15365 transitions. [2024-11-28 03:14:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:43,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:14:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:43,165 INFO L225 Difference]: With dead ends: 9770 [2024-11-28 03:14:43,165 INFO L226 Difference]: Without dead ends: 7140 [2024-11-28 03:14:43,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:43,169 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 524 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:43,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1452 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:14:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2024-11-28 03:14:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 5979. [2024-11-28 03:14:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5979 states, 5548 states have (on average 1.5450612833453496) internal successors, (8572), 5561 states have internal predecessors, (8572), 392 states have call successors, (392), 38 states have call predecessors, (392), 38 states have return successors, (392), 379 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-28 03:14:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5979 states to 5979 states and 9356 transitions. [2024-11-28 03:14:43,470 INFO L78 Accepts]: Start accepts. Automaton has 5979 states and 9356 transitions. Word has length 473 [2024-11-28 03:14:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:43,473 INFO L471 AbstractCegarLoop]: Abstraction has 5979 states and 9356 transitions. [2024-11-28 03:14:43,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5979 states and 9356 transitions. [2024-11-28 03:14:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:14:43,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:43,487 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:43,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:14:43,487 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:43,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:43,488 INFO L85 PathProgramCache]: Analyzing trace with hash 548103814, now seen corresponding path program 1 times [2024-11-28 03:14:43,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:43,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261883724] [2024-11-28 03:14:43,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:43,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:48,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:48,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261883724] [2024-11-28 03:14:48,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261883724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:48,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:48,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:14:48,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568181990] [2024-11-28 03:14:48,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:48,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:14:48,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:48,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:14:48,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:14:48,094 INFO L87 Difference]: Start difference. First operand 5979 states and 9356 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2024-11-28 03:14:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:52,244 INFO L93 Difference]: Finished difference Result 21153 states and 33478 transitions. [2024-11-28 03:14:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:14:52,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) Word has length 473 [2024-11-28 03:14:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:52,281 INFO L225 Difference]: With dead ends: 21153 [2024-11-28 03:14:52,281 INFO L226 Difference]: Without dead ends: 15903 [2024-11-28 03:14:52,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:14:52,290 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 2598 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:52,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 2519 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:14:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15903 states. [2024-11-28 03:14:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15903 to 5989. [2024-11-28 03:14:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5989 states, 5558 states have (on average 1.545160129543001) internal successors, (8588), 5571 states have internal predecessors, (8588), 392 states have call successors, (392), 38 states have call predecessors, (392), 38 states have return successors, (392), 379 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-28 03:14:52,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 9372 transitions. [2024-11-28 03:14:52,615 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 9372 transitions. Word has length 473 [2024-11-28 03:14:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:52,616 INFO L471 AbstractCegarLoop]: Abstraction has 5989 states and 9372 transitions. [2024-11-28 03:14:52,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2024-11-28 03:14:52,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 9372 transitions. [2024-11-28 03:14:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:14:52,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:52,626 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:52,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:14:52,627 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:52,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:52,628 INFO L85 PathProgramCache]: Analyzing trace with hash -183863612, now seen corresponding path program 1 times [2024-11-28 03:14:52,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:52,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340861472] [2024-11-28 03:14:52,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:53,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:53,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340861472] [2024-11-28 03:14:53,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340861472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:53,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:53,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:53,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557840355] [2024-11-28 03:14:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:53,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:53,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:53,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:53,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:53,351 INFO L87 Difference]: Start difference. First operand 5989 states and 9372 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:53,898 INFO L93 Difference]: Finished difference Result 15657 states and 24633 transitions. [2024-11-28 03:14:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:53,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:14:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:53,925 INFO L225 Difference]: With dead ends: 15657 [2024-11-28 03:14:53,925 INFO L226 Difference]: Without dead ends: 10713 [2024-11-28 03:14:53,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:14:53,935 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 818 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:53,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2414 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:14:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10713 states. [2024-11-28 03:14:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10713 to 9755. [2024-11-28 03:14:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9755 states, 9324 states have (on average 1.5637065637065637) internal successors, (14580), 9337 states have internal predecessors, (14580), 392 states have call successors, (392), 38 states have call predecessors, (392), 38 states have return successors, (392), 379 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-28 03:14:54,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9755 states to 9755 states and 15364 transitions. [2024-11-28 03:14:54,282 INFO L78 Accepts]: Start accepts. Automaton has 9755 states and 15364 transitions. Word has length 473 [2024-11-28 03:14:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:54,282 INFO L471 AbstractCegarLoop]: Abstraction has 9755 states and 15364 transitions. [2024-11-28 03:14:54,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:54,283 INFO L276 IsEmpty]: Start isEmpty. Operand 9755 states and 15364 transitions. [2024-11-28 03:14:54,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:14:54,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:54,296 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:54,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:14:54,296 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:54,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:54,297 INFO L85 PathProgramCache]: Analyzing trace with hash -238256510, now seen corresponding path program 1 times [2024-11-28 03:14:54,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:54,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995040062] [2024-11-28 03:14:54,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:54,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:55,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:55,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995040062] [2024-11-28 03:14:55,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995040062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:55,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:55,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:14:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352917648] [2024-11-28 03:14:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:55,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:14:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:55,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:14:55,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:14:55,635 INFO L87 Difference]: Start difference. First operand 9755 states and 15364 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:56,962 INFO L93 Difference]: Finished difference Result 28697 states and 45254 transitions. [2024-11-28 03:14:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:14:56,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:14:56,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:57,010 INFO L225 Difference]: With dead ends: 28697 [2024-11-28 03:14:57,010 INFO L226 Difference]: Without dead ends: 20587 [2024-11-28 03:14:57,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:14:57,021 INFO L435 NwaCegarLoop]: 717 mSDtfsCounter, 983 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:57,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2170 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:14:57,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20587 states. [2024-11-28 03:14:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20587 to 15002. [2024-11-28 03:14:57,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15002 states, 14356 states have (on average 1.5596962942323767) internal successors, (22391), 14376 states have internal predecessors, (22391), 587 states have call successors, (587), 58 states have call predecessors, (587), 58 states have return successors, (587), 567 states have call predecessors, (587), 587 states have call successors, (587) [2024-11-28 03:14:57,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15002 states to 15002 states and 23565 transitions. [2024-11-28 03:14:57,571 INFO L78 Accepts]: Start accepts. Automaton has 15002 states and 23565 transitions. Word has length 473 [2024-11-28 03:14:57,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:57,572 INFO L471 AbstractCegarLoop]: Abstraction has 15002 states and 23565 transitions. [2024-11-28 03:14:57,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:57,572 INFO L276 IsEmpty]: Start isEmpty. Operand 15002 states and 23565 transitions. [2024-11-28 03:14:57,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:14:57,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:57,591 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:57,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:14:57,591 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:57,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -429381488, now seen corresponding path program 1 times [2024-11-28 03:14:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:57,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018629989] [2024-11-28 03:14:57,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:57,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:14:58,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:58,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018629989] [2024-11-28 03:14:58,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018629989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:58,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:58,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:14:58,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903772592] [2024-11-28 03:14:58,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:58,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:58,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:58,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:58,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:58,780 INFO L87 Difference]: Start difference. First operand 15002 states and 23565 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:14:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:59,628 INFO L93 Difference]: Finished difference Result 34913 states and 54987 transitions. [2024-11-28 03:14:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:59,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:14:59,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:59,662 INFO L225 Difference]: With dead ends: 34913 [2024-11-28 03:14:59,663 INFO L226 Difference]: Without dead ends: 21334 [2024-11-28 03:14:59,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:59,678 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 873 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:59,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1198 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:14:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21334 states. [2024-11-28 03:15:00,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21334 to 17309. [2024-11-28 03:15:00,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17309 states, 16616 states have (on average 1.5597014925373134) internal successors, (25916), 16638 states have internal predecessors, (25916), 628 states have call successors, (628), 64 states have call predecessors, (628), 64 states have return successors, (628), 606 states have call predecessors, (628), 628 states have call successors, (628) [2024-11-28 03:15:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17309 states to 17309 states and 27172 transitions. [2024-11-28 03:15:00,343 INFO L78 Accepts]: Start accepts. Automaton has 17309 states and 27172 transitions. Word has length 473 [2024-11-28 03:15:00,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:00,344 INFO L471 AbstractCegarLoop]: Abstraction has 17309 states and 27172 transitions. [2024-11-28 03:15:00,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 17309 states and 27172 transitions. [2024-11-28 03:15:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:00,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:00,367 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:00,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:15:00,367 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:00,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1532309574, now seen corresponding path program 1 times [2024-11-28 03:15:00,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:00,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620494] [2024-11-28 03:15:00,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:00,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:01,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:01,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620494] [2024-11-28 03:15:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:01,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:01,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:15:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499205683] [2024-11-28 03:15:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:01,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:15:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:01,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:15:01,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:15:01,448 INFO L87 Difference]: Start difference. First operand 17309 states and 27172 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:02,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:02,208 INFO L93 Difference]: Finished difference Result 44073 states and 69837 transitions. [2024-11-28 03:15:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:15:02,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:02,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:02,262 INFO L225 Difference]: With dead ends: 44073 [2024-11-28 03:15:02,262 INFO L226 Difference]: Without dead ends: 30237 [2024-11-28 03:15:02,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:02,284 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 560 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:02,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1379 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:15:02,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30237 states. [2024-11-28 03:15:03,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30237 to 20012. [2024-11-28 03:15:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20012 states, 19190 states have (on average 1.5609171443460135) internal successors, (29954), 19215 states have internal predecessors, (29954), 745 states have call successors, (745), 76 states have call predecessors, (745), 76 states have return successors, (745), 720 states have call predecessors, (745), 745 states have call successors, (745) [2024-11-28 03:15:03,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20012 states to 20012 states and 31444 transitions. [2024-11-28 03:15:03,177 INFO L78 Accepts]: Start accepts. Automaton has 20012 states and 31444 transitions. Word has length 473 [2024-11-28 03:15:03,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:03,178 INFO L471 AbstractCegarLoop]: Abstraction has 20012 states and 31444 transitions. [2024-11-28 03:15:03,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 20012 states and 31444 transitions. [2024-11-28 03:15:03,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:03,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:03,196 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:03,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:15:03,196 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:03,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:03,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1509677320, now seen corresponding path program 1 times [2024-11-28 03:15:03,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:03,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032041732] [2024-11-28 03:15:03,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:03,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:04,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:04,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032041732] [2024-11-28 03:15:04,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032041732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:04,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:04,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:04,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419643703] [2024-11-28 03:15:04,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:04,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:04,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:04,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:04,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:04,657 INFO L87 Difference]: Start difference. First operand 20012 states and 31444 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:05,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:05,552 INFO L93 Difference]: Finished difference Result 41438 states and 65347 transitions. [2024-11-28 03:15:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:05,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:05,595 INFO L225 Difference]: With dead ends: 41438 [2024-11-28 03:15:05,595 INFO L226 Difference]: Without dead ends: 24674 [2024-11-28 03:15:05,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:05,617 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 889 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:05,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1947 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:15:05,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24674 states. [2024-11-28 03:15:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24674 to 21386. [2024-11-28 03:15:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21386 states, 20564 states have (on average 1.5585002917720288) internal successors, (32049), 20589 states have internal predecessors, (32049), 745 states have call successors, (745), 76 states have call predecessors, (745), 76 states have return successors, (745), 720 states have call predecessors, (745), 745 states have call successors, (745) [2024-11-28 03:15:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21386 states to 21386 states and 33539 transitions. [2024-11-28 03:15:06,517 INFO L78 Accepts]: Start accepts. Automaton has 21386 states and 33539 transitions. Word has length 473 [2024-11-28 03:15:06,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:06,517 INFO L471 AbstractCegarLoop]: Abstraction has 21386 states and 33539 transitions. [2024-11-28 03:15:06,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 21386 states and 33539 transitions. [2024-11-28 03:15:06,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:06,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:06,535 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:06,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:15:06,536 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:06,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1731186554, now seen corresponding path program 1 times [2024-11-28 03:15:06,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:06,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116905947] [2024-11-28 03:15:06,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:06,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:07,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:07,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116905947] [2024-11-28 03:15:07,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116905947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:07,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:07,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:15:07,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365018113] [2024-11-28 03:15:07,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:07,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:15:07,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:07,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:15:07,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:07,129 INFO L87 Difference]: Start difference. First operand 21386 states and 33539 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:09,257 INFO L93 Difference]: Finished difference Result 71821 states and 112995 transitions. [2024-11-28 03:15:09,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:15:09,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:09,374 INFO L225 Difference]: With dead ends: 71821 [2024-11-28 03:15:09,374 INFO L226 Difference]: Without dead ends: 54166 [2024-11-28 03:15:09,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:15:09,408 INFO L435 NwaCegarLoop]: 934 mSDtfsCounter, 844 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:09,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 3009 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:15:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54166 states. [2024-11-28 03:15:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54166 to 37260. [2024-11-28 03:15:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37260 states, 35689 states have (on average 1.557398638235871) internal successors, (55582), 35739 states have internal predecessors, (55582), 1422 states have call successors, (1422), 148 states have call predecessors, (1422), 148 states have return successors, (1422), 1372 states have call predecessors, (1422), 1422 states have call successors, (1422) [2024-11-28 03:15:11,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37260 states to 37260 states and 58426 transitions. [2024-11-28 03:15:11,087 INFO L78 Accepts]: Start accepts. Automaton has 37260 states and 58426 transitions. Word has length 473 [2024-11-28 03:15:11,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:11,088 INFO L471 AbstractCegarLoop]: Abstraction has 37260 states and 58426 transitions. [2024-11-28 03:15:11,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 37260 states and 58426 transitions. [2024-11-28 03:15:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:11,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:11,112 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:11,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:15:11,113 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:11,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:11,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1904249220, now seen corresponding path program 1 times [2024-11-28 03:15:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:11,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591248296] [2024-11-28 03:15:11,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:12,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:12,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591248296] [2024-11-28 03:15:12,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591248296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:12,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:12,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:15:12,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907053859] [2024-11-28 03:15:12,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:12,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:15:12,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:12,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:15:12,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:15:12,491 INFO L87 Difference]: Start difference. First operand 37260 states and 58426 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:14,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:14,929 INFO L93 Difference]: Finished difference Result 77971 states and 122235 transitions. [2024-11-28 03:15:14,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:15:14,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:14,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:14,981 INFO L225 Difference]: With dead ends: 77971 [2024-11-28 03:15:14,981 INFO L226 Difference]: Without dead ends: 40192 [2024-11-28 03:15:15,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:15:15,009 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 1199 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:15,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 2869 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:15:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40192 states. [2024-11-28 03:15:16,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40192 to 32877. [2024-11-28 03:15:16,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32877 states, 31356 states have (on average 1.549464217374665) internal successors, (48585), 31400 states have internal predecessors, (48585), 1378 states have call successors, (1378), 142 states have call predecessors, (1378), 142 states have return successors, (1378), 1334 states have call predecessors, (1378), 1378 states have call successors, (1378) [2024-11-28 03:15:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32877 states to 32877 states and 51341 transitions. [2024-11-28 03:15:16,621 INFO L78 Accepts]: Start accepts. Automaton has 32877 states and 51341 transitions. Word has length 473 [2024-11-28 03:15:16,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:16,621 INFO L471 AbstractCegarLoop]: Abstraction has 32877 states and 51341 transitions. [2024-11-28 03:15:16,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:16,622 INFO L276 IsEmpty]: Start isEmpty. Operand 32877 states and 51341 transitions. [2024-11-28 03:15:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:16,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:16,655 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:16,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:15:16,655 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:16,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:16,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1125479356, now seen corresponding path program 1 times [2024-11-28 03:15:16,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:16,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729831585] [2024-11-28 03:15:16,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:16,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:18,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:18,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729831585] [2024-11-28 03:15:18,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729831585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:18,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:18,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:15:18,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35465960] [2024-11-28 03:15:18,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:18,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:15:18,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:18,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:15:18,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:18,416 INFO L87 Difference]: Start difference. First operand 32877 states and 51341 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:20,596 INFO L93 Difference]: Finished difference Result 83984 states and 131293 transitions. [2024-11-28 03:15:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:15:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:20,683 INFO L225 Difference]: With dead ends: 83984 [2024-11-28 03:15:20,684 INFO L226 Difference]: Without dead ends: 53401 [2024-11-28 03:15:20,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:15:20,716 INFO L435 NwaCegarLoop]: 712 mSDtfsCounter, 1128 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:20,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 1890 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:15:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53401 states. [2024-11-28 03:15:22,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53401 to 42012. [2024-11-28 03:15:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42012 states, 40087 states have (on average 1.5510265173248186) internal successors, (62176), 40139 states have internal predecessors, (62176), 1748 states have call successors, (1748), 176 states have call predecessors, (1748), 176 states have return successors, (1748), 1696 states have call predecessors, (1748), 1748 states have call successors, (1748) [2024-11-28 03:15:22,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42012 states to 42012 states and 65672 transitions. [2024-11-28 03:15:22,560 INFO L78 Accepts]: Start accepts. Automaton has 42012 states and 65672 transitions. Word has length 473 [2024-11-28 03:15:22,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:22,560 INFO L471 AbstractCegarLoop]: Abstraction has 42012 states and 65672 transitions. [2024-11-28 03:15:22,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:22,560 INFO L276 IsEmpty]: Start isEmpty. Operand 42012 states and 65672 transitions. [2024-11-28 03:15:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:22,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:22,585 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:22,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:15:22,585 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:22,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:22,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1943697978, now seen corresponding path program 1 times [2024-11-28 03:15:22,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536955916] [2024-11-28 03:15:22,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:22,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:22,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:22,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536955916] [2024-11-28 03:15:22,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536955916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:22,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:22,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:15:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787062248] [2024-11-28 03:15:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:22,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:22,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:22,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:22,920 INFO L87 Difference]: Start difference. First operand 42012 states and 65672 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:24,862 INFO L93 Difference]: Finished difference Result 77831 states and 121199 transitions. [2024-11-28 03:15:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:24,914 INFO L225 Difference]: With dead ends: 77831 [2024-11-28 03:15:24,914 INFO L226 Difference]: Without dead ends: 39390 [2024-11-28 03:15:24,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:24,942 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 403 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:24,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1235 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:15:24,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39390 states. [2024-11-28 03:15:26,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39390 to 34206. [2024-11-28 03:15:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34206 states, 32281 states have (on average 1.5160311018865587) internal successors, (48939), 32333 states have internal predecessors, (48939), 1748 states have call successors, (1748), 176 states have call predecessors, (1748), 176 states have return successors, (1748), 1696 states have call predecessors, (1748), 1748 states have call successors, (1748) [2024-11-28 03:15:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34206 states to 34206 states and 52435 transitions. [2024-11-28 03:15:26,848 INFO L78 Accepts]: Start accepts. Automaton has 34206 states and 52435 transitions. Word has length 473 [2024-11-28 03:15:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:26,849 INFO L471 AbstractCegarLoop]: Abstraction has 34206 states and 52435 transitions. [2024-11-28 03:15:26,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 34206 states and 52435 transitions. [2024-11-28 03:15:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:26,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:26,870 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:26,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:15:26,870 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:26,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:26,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1520051256, now seen corresponding path program 1 times [2024-11-28 03:15:26,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:26,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085377789] [2024-11-28 03:15:26,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:26,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:34,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:34,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085377789] [2024-11-28 03:15:34,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085377789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:34,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:34,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:15:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759634952] [2024-11-28 03:15:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:34,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:15:34,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:34,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:15:34,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:15:34,198 INFO L87 Difference]: Start difference. First operand 34206 states and 52435 transitions. Second operand has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:41,937 INFO L93 Difference]: Finished difference Result 89445 states and 136651 transitions. [2024-11-28 03:15:41,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:15:41,937 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:42,051 INFO L225 Difference]: With dead ends: 89445 [2024-11-28 03:15:42,051 INFO L226 Difference]: Without dead ends: 59125 [2024-11-28 03:15:42,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:15:42,103 INFO L435 NwaCegarLoop]: 661 mSDtfsCounter, 4129 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:42,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 3808 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 03:15:42,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59125 states. [2024-11-28 03:15:44,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59125 to 40219. [2024-11-28 03:15:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40219 states, 38294 states have (on average 1.5177573510210476) internal successors, (58121), 38346 states have internal predecessors, (58121), 1748 states have call successors, (1748), 176 states have call predecessors, (1748), 176 states have return successors, (1748), 1696 states have call predecessors, (1748), 1748 states have call successors, (1748) [2024-11-28 03:15:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40219 states to 40219 states and 61617 transitions. [2024-11-28 03:15:44,439 INFO L78 Accepts]: Start accepts. Automaton has 40219 states and 61617 transitions. Word has length 473 [2024-11-28 03:15:44,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:44,440 INFO L471 AbstractCegarLoop]: Abstraction has 40219 states and 61617 transitions. [2024-11-28 03:15:44,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 40219 states and 61617 transitions. [2024-11-28 03:15:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-28 03:15:44,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:44,469 INFO L218 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:44,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:15:44,469 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:44,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:44,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1086322170, now seen corresponding path program 1 times [2024-11-28 03:15:44,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609472168] [2024-11-28 03:15:44,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:44,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-28 03:15:44,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:44,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609472168] [2024-11-28 03:15:44,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609472168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:44,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:44,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:15:44,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542467488] [2024-11-28 03:15:44,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:44,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:44,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:44,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:44,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:44,906 INFO L87 Difference]: Start difference. First operand 40219 states and 61617 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-28 03:15:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:47,606 INFO L93 Difference]: Finished difference Result 101391 states and 156182 transitions. [2024-11-28 03:15:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:47,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-28 03:15:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:47,721 INFO L225 Difference]: With dead ends: 101391 [2024-11-28 03:15:47,721 INFO L226 Difference]: Without dead ends: 70595 [2024-11-28 03:15:47,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:47,756 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 372 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:47,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1244 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:15:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70595 states.