./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 075767edbb592d061c1d85f41edb41733b674c2f33a2c1741ae50b9eba126551 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:00:15,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:00:15,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:00:15,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:00:15,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:00:15,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:00:15,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:00:15,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:00:15,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:00:15,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:00:15,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:00:15,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:00:15,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:00:15,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:00:15,459 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:00:15,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:00:15,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:00:15,461 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:15,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:00:15,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:00:15,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:00:15,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:15,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:00:15,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:00:15,464 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:00:15,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:00:15,464 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:00:15,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:00:15,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:00:15,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:00:15,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:00:15,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:00:15,465 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_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 075767edbb592d061c1d85f41edb41733b674c2f33a2c1741ae50b9eba126551 [2024-11-23 23:00:15,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:00:15,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:00:15,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:00:15,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:00:15,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:00:15,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-23 23:00:19,200 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/data/a5777d437/38d0ea89011a4e848e8493d9c63ea5b9/FLAG883052a14 [2024-11-23 23:00:19,546 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:00:19,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-23 23:00:19,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/data/a5777d437/38d0ea89011a4e848e8493d9c63ea5b9/FLAG883052a14 [2024-11-23 23:00:19,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/data/a5777d437/38d0ea89011a4e848e8493d9c63ea5b9 [2024-11-23 23:00:19,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:00:19,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:00:19,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:00:19,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:00:19,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:00:19,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:00:19" (1/1) ... [2024-11-23 23:00:19,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e314600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:19, skipping insertion in model container [2024-11-23 23:00:19,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:00:19" (1/1) ... [2024-11-23 23:00:19,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:00:19,865 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_5e75307f-cfe2-4c30-afbc-198bd500b5d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6780,6793] [2024-11-23 23:00:19,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:00:19,946 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:00:19,996 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_5e75307f-cfe2-4c30-afbc-198bd500b5d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6780,6793] [2024-11-23 23:00:20,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:00:20,045 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:00:20,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20 WrapperNode [2024-11-23 23:00:20,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:00:20,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:00:20,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:00:20,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:00:20,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,109 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 576 [2024-11-23 23:00:20,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:00:20,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:00:20,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:00:20,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:00:20,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,162 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:00:20,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,169 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:00:20,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:00:20,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:00:20,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:00:20,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (1/1) ... [2024-11-23 23:00:20,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:00:20,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:20,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:00:20,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:00:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:00:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:00:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:00:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:00:20,417 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:00:20,421 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:00:21,174 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-23 23:00:21,174 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:00:21,188 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:00:21,189 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:00:21,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:00:21 BoogieIcfgContainer [2024-11-23 23:00:21,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:00:21,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:00:21,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:00:21,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:00:21,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:00:19" (1/3) ... [2024-11-23 23:00:21,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569fdfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:00:21, skipping insertion in model container [2024-11-23 23:00:21,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:00:20" (2/3) ... [2024-11-23 23:00:21,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569fdfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:00:21, skipping insertion in model container [2024-11-23 23:00:21,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:00:21" (3/3) ... [2024-11-23 23:00:21,205 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-23 23:00:21,225 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:00:21,229 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c that has 1 procedures, 123 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:00:21,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:00:21,338 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;@2017586c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:00:21,338 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:00:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 122 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-23 23:00:21,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:21,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:21,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:21,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1296157629, now seen corresponding path program 1 times [2024-11-23 23:00:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:21,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867671779] [2024-11-23 23:00:21,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:22,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:22,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:22,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867671779] [2024-11-23 23:00:22,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867671779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:22,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:22,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558372598] [2024-11-23 23:00:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:22,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:22,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:22,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:22,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:22,225 INFO L87 Difference]: Start difference. First operand has 123 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 122 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:22,693 INFO L93 Difference]: Finished difference Result 589 states and 942 transitions. [2024-11-23 23:00:22,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:00:22,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-23 23:00:22,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:22,711 INFO L225 Difference]: With dead ends: 589 [2024-11-23 23:00:22,711 INFO L226 Difference]: Without dead ends: 511 [2024-11-23 23:00:22,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:00:22,723 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 910 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:22,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1605 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-23 23:00:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 185. [2024-11-23 23:00:22,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.451086956521739) internal successors, (267), 184 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:22,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 267 transitions. [2024-11-23 23:00:22,797 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 267 transitions. Word has length 62 [2024-11-23 23:00:22,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:22,798 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 267 transitions. [2024-11-23 23:00:22,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:22,800 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 267 transitions. [2024-11-23 23:00:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:00:22,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:22,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:22,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:00:22,803 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:22,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:22,805 INFO L85 PathProgramCache]: Analyzing trace with hash -574954446, now seen corresponding path program 1 times [2024-11-23 23:00:22,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:22,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889614215] [2024-11-23 23:00:22,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:22,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:23,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889614215] [2024-11-23 23:00:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889614215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:23,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:23,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:23,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933821864] [2024-11-23 23:00:23,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:23,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:23,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:23,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:23,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:23,236 INFO L87 Difference]: Start difference. First operand 185 states and 267 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:23,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:23,409 INFO L93 Difference]: Finished difference Result 654 states and 1000 transitions. [2024-11-23 23:00:23,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:23,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-23 23:00:23,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:23,413 INFO L225 Difference]: With dead ends: 654 [2024-11-23 23:00:23,417 INFO L226 Difference]: Without dead ends: 554 [2024-11-23 23:00:23,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:00:23,419 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 521 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:23,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 889 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:23,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-23 23:00:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 294. [2024-11-23 23:00:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.4982935153583619) internal successors, (439), 293 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 439 transitions. [2024-11-23 23:00:23,463 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 439 transitions. Word has length 64 [2024-11-23 23:00:23,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:23,464 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 439 transitions. [2024-11-23 23:00:23,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 439 transitions. [2024-11-23 23:00:23,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:00:23,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:23,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:23,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:00:23,470 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:23,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:23,473 INFO L85 PathProgramCache]: Analyzing trace with hash -254559290, now seen corresponding path program 1 times [2024-11-23 23:00:23,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:23,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945765230] [2024-11-23 23:00:23,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:23,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:23,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:23,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945765230] [2024-11-23 23:00:23,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945765230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:23,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:23,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63684326] [2024-11-23 23:00:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:23,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:23,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:23,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:23,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:23,802 INFO L87 Difference]: Start difference. First operand 294 states and 439 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:23,988 INFO L93 Difference]: Finished difference Result 763 states and 1172 transitions. [2024-11-23 23:00:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-23 23:00:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:23,993 INFO L225 Difference]: With dead ends: 763 [2024-11-23 23:00:23,993 INFO L226 Difference]: Without dead ends: 663 [2024-11-23 23:00:23,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:00:23,998 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 599 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:23,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 792 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:24,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-23 23:00:24,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 447. [2024-11-23 23:00:24,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.5246636771300448) internal successors, (680), 446 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 680 transitions. [2024-11-23 23:00:24,037 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 680 transitions. Word has length 64 [2024-11-23 23:00:24,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:24,037 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 680 transitions. [2024-11-23 23:00:24,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 680 transitions. [2024-11-23 23:00:24,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:00:24,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:24,038 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:24,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:00:24,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:24,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1989488918, now seen corresponding path program 1 times [2024-11-23 23:00:24,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:24,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473571487] [2024-11-23 23:00:24,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:24,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:24,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473571487] [2024-11-23 23:00:24,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473571487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:24,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:24,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:24,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128107307] [2024-11-23 23:00:24,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:24,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:24,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:24,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:24,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:24,329 INFO L87 Difference]: Start difference. First operand 447 states and 680 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:24,526 INFO L93 Difference]: Finished difference Result 862 states and 1328 transitions. [2024-11-23 23:00:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:24,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-23 23:00:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:24,535 INFO L225 Difference]: With dead ends: 862 [2024-11-23 23:00:24,535 INFO L226 Difference]: Without dead ends: 762 [2024-11-23 23:00:24,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:00:24,537 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 674 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:24,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 788 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-23 23:00:24,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 546. [2024-11-23 23:00:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.5339449541284405) internal successors, (836), 545 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 836 transitions. [2024-11-23 23:00:24,568 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 836 transitions. Word has length 64 [2024-11-23 23:00:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:24,568 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 836 transitions. [2024-11-23 23:00:24,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 836 transitions. [2024-11-23 23:00:24,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:00:24,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:24,570 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:24,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:00:24,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:24,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1188595012, now seen corresponding path program 1 times [2024-11-23 23:00:24,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:24,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031151467] [2024-11-23 23:00:24,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:24,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:24,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:24,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031151467] [2024-11-23 23:00:24,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031151467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:24,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:24,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:24,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766276566] [2024-11-23 23:00:24,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:24,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:24,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:24,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:24,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:24,667 INFO L87 Difference]: Start difference. First operand 546 states and 836 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:24,705 INFO L93 Difference]: Finished difference Result 1374 states and 2132 transitions. [2024-11-23 23:00:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:24,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-23 23:00:24,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:24,710 INFO L225 Difference]: With dead ends: 1374 [2024-11-23 23:00:24,711 INFO L226 Difference]: Without dead ends: 931 [2024-11-23 23:00:24,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:24,713 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 67 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:24,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 380 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:24,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-23 23:00:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-11-23 23:00:24,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.5237068965517242) internal successors, (1414), 928 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1414 transitions. [2024-11-23 23:00:24,753 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1414 transitions. Word has length 64 [2024-11-23 23:00:24,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:24,754 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1414 transitions. [2024-11-23 23:00:24,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1414 transitions. [2024-11-23 23:00:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:00:24,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:24,755 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:24,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:00:24,756 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:24,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:24,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1017922373, now seen corresponding path program 1 times [2024-11-23 23:00:24,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:24,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232550280] [2024-11-23 23:00:24,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:24,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:25,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:25,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232550280] [2024-11-23 23:00:25,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232550280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:25,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:25,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213233556] [2024-11-23 23:00:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:25,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:25,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:25,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:25,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:25,119 INFO L87 Difference]: Start difference. First operand 929 states and 1414 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:25,352 INFO L93 Difference]: Finished difference Result 1757 states and 2692 transitions. [2024-11-23 23:00:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-23 23:00:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:25,357 INFO L225 Difference]: With dead ends: 1757 [2024-11-23 23:00:25,358 INFO L226 Difference]: Without dead ends: 931 [2024-11-23 23:00:25,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:00:25,360 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 106 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:25,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 616 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:25,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-23 23:00:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-11-23 23:00:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.5183189655172413) internal successors, (1409), 928 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1409 transitions. [2024-11-23 23:00:25,409 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1409 transitions. Word has length 64 [2024-11-23 23:00:25,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:25,409 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1409 transitions. [2024-11-23 23:00:25,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:25,409 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1409 transitions. [2024-11-23 23:00:25,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:00:25,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:25,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:25,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:00:25,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:25,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:25,411 INFO L85 PathProgramCache]: Analyzing trace with hash 145774506, now seen corresponding path program 1 times [2024-11-23 23:00:25,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:25,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773565743] [2024-11-23 23:00:25,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:25,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:25,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:25,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773565743] [2024-11-23 23:00:25,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773565743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:25,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:25,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:25,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256271455] [2024-11-23 23:00:25,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:25,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:00:25,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:25,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:00:25,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:25,687 INFO L87 Difference]: Start difference. First operand 929 states and 1409 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:25,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:25,857 INFO L93 Difference]: Finished difference Result 1689 states and 2577 transitions. [2024-11-23 23:00:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:25,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-23 23:00:25,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:25,865 INFO L225 Difference]: With dead ends: 1689 [2024-11-23 23:00:25,865 INFO L226 Difference]: Without dead ends: 1504 [2024-11-23 23:00:25,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:00:25,868 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 645 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:25,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 926 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:25,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-11-23 23:00:25,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1123. [2024-11-23 23:00:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.5222816399286987) internal successors, (1708), 1122 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1708 transitions. [2024-11-23 23:00:25,915 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1708 transitions. Word has length 64 [2024-11-23 23:00:25,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:25,916 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1708 transitions. [2024-11-23 23:00:25,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1708 transitions. [2024-11-23 23:00:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-23 23:00:25,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:25,919 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:25,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:00:25,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:25,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1968503380, now seen corresponding path program 1 times [2024-11-23 23:00:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:25,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477737465] [2024-11-23 23:00:25,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:26,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:26,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477737465] [2024-11-23 23:00:26,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477737465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:26,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:26,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:26,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583597073] [2024-11-23 23:00:26,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:26,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:26,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:26,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:26,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:26,082 INFO L87 Difference]: Start difference. First operand 1123 states and 1708 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:26,344 INFO L93 Difference]: Finished difference Result 3265 states and 5000 transitions. [2024-11-23 23:00:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-23 23:00:26,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:26,353 INFO L225 Difference]: With dead ends: 3265 [2024-11-23 23:00:26,354 INFO L226 Difference]: Without dead ends: 2172 [2024-11-23 23:00:26,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:26,356 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 659 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:26,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 144 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:00:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-11-23 23:00:26,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2170. [2024-11-23 23:00:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.5209774089442138) internal successors, (3299), 2169 states have internal predecessors, (3299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3299 transitions. [2024-11-23 23:00:26,429 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3299 transitions. Word has length 65 [2024-11-23 23:00:26,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:26,429 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3299 transitions. [2024-11-23 23:00:26,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3299 transitions. [2024-11-23 23:00:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 23:00:26,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:26,433 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:26,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:00:26,434 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:26,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:26,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1032507974, now seen corresponding path program 1 times [2024-11-23 23:00:26,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:26,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620332394] [2024-11-23 23:00:26,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:26,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:26,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:26,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620332394] [2024-11-23 23:00:26,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620332394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:26,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:26,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:26,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056598726] [2024-11-23 23:00:26,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:26,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:26,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:26,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:26,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:26,604 INFO L87 Difference]: Start difference. First operand 2170 states and 3299 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:26,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:26,788 INFO L93 Difference]: Finished difference Result 4298 states and 6553 transitions. [2024-11-23 23:00:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:26,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-23 23:00:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:26,798 INFO L225 Difference]: With dead ends: 4298 [2024-11-23 23:00:26,798 INFO L226 Difference]: Without dead ends: 2170 [2024-11-23 23:00:26,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:26,803 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 414 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:26,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 113 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-23 23:00:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2024-11-23 23:00:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.500230520977409) internal successors, (3254), 2169 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3254 transitions. [2024-11-23 23:00:26,856 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3254 transitions. Word has length 66 [2024-11-23 23:00:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:26,857 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3254 transitions. [2024-11-23 23:00:26,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3254 transitions. [2024-11-23 23:00:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 23:00:26,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:26,858 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:26,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:00:26,858 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:26,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1666418400, now seen corresponding path program 1 times [2024-11-23 23:00:26,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:26,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25045236] [2024-11-23 23:00:26,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:26,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:27,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:27,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25045236] [2024-11-23 23:00:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25045236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:27,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860333912] [2024-11-23 23:00:27,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:27,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:27,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:27,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:27,014 INFO L87 Difference]: Start difference. First operand 2170 states and 3254 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:27,191 INFO L93 Difference]: Finished difference Result 4306 states and 6473 transitions. [2024-11-23 23:00:27,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:27,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-23 23:00:27,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:27,198 INFO L225 Difference]: With dead ends: 4306 [2024-11-23 23:00:27,199 INFO L226 Difference]: Without dead ends: 2170 [2024-11-23 23:00:27,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:27,202 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 430 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:27,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 97 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-23 23:00:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2024-11-23 23:00:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.479483633010604) internal successors, (3209), 2169 states have internal predecessors, (3209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3209 transitions. [2024-11-23 23:00:27,260 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3209 transitions. Word has length 67 [2024-11-23 23:00:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:27,260 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3209 transitions. [2024-11-23 23:00:27,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3209 transitions. [2024-11-23 23:00:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 23:00:27,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:27,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:27,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:00:27,262 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:27,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:27,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1540735366, now seen corresponding path program 1 times [2024-11-23 23:00:27,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:27,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792378154] [2024-11-23 23:00:27,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:27,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:27,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:27,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792378154] [2024-11-23 23:00:27,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792378154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:27,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:27,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:27,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582481839] [2024-11-23 23:00:27,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:27,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:27,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:27,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:27,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:27,400 INFO L87 Difference]: Start difference. First operand 2170 states and 3209 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:27,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:27,596 INFO L93 Difference]: Finished difference Result 4302 states and 6379 transitions. [2024-11-23 23:00:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:27,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-23 23:00:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:27,605 INFO L225 Difference]: With dead ends: 4302 [2024-11-23 23:00:27,606 INFO L226 Difference]: Without dead ends: 2170 [2024-11-23 23:00:27,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:27,609 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 412 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:27,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 105 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-23 23:00:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2024-11-23 23:00:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.458736745043799) internal successors, (3164), 2169 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3164 transitions. [2024-11-23 23:00:27,665 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3164 transitions. Word has length 68 [2024-11-23 23:00:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:27,665 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3164 transitions. [2024-11-23 23:00:27,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3164 transitions. [2024-11-23 23:00:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 23:00:27,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:27,667 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:27,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:00:27,668 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:27,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash -147544852, now seen corresponding path program 1 times [2024-11-23 23:00:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:27,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689551013] [2024-11-23 23:00:27,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:28,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:28,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689551013] [2024-11-23 23:00:28,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689551013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:28,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:28,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:00:28,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50245634] [2024-11-23 23:00:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:28,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:00:28,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:28,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:00:28,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:00:28,118 INFO L87 Difference]: Start difference. First operand 2170 states and 3164 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:28,575 INFO L93 Difference]: Finished difference Result 6251 states and 9140 transitions. [2024-11-23 23:00:28,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:00:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-23 23:00:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:28,590 INFO L225 Difference]: With dead ends: 6251 [2024-11-23 23:00:28,590 INFO L226 Difference]: Without dead ends: 4195 [2024-11-23 23:00:28,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:00:28,594 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 576 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:28,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 360 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4195 states. [2024-11-23 23:00:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4195 to 2170. [2024-11-23 23:00:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.458275703088981) internal successors, (3163), 2169 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:28,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3163 transitions. [2024-11-23 23:00:28,678 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3163 transitions. Word has length 69 [2024-11-23 23:00:28,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:28,678 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3163 transitions. [2024-11-23 23:00:28,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3163 transitions. [2024-11-23 23:00:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:00:28,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:28,680 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:28,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:00:28,680 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:28,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 682625962, now seen corresponding path program 1 times [2024-11-23 23:00:28,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:28,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573069954] [2024-11-23 23:00:28,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:28,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:29,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:29,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573069954] [2024-11-23 23:00:29,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573069954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:29,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:29,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:00:29,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254735999] [2024-11-23 23:00:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:29,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:00:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:29,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:00:29,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:00:29,340 INFO L87 Difference]: Start difference. First operand 2170 states and 3163 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:30,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:30,234 INFO L93 Difference]: Finished difference Result 6506 states and 9412 transitions. [2024-11-23 23:00:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:00:30,235 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 23:00:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:30,249 INFO L225 Difference]: With dead ends: 6506 [2024-11-23 23:00:30,249 INFO L226 Difference]: Without dead ends: 4469 [2024-11-23 23:00:30,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:00:30,253 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 559 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:30,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 567 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:00:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2024-11-23 23:00:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 2179. [2024-11-23 23:00:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2178 states have (on average 1.4563820018365472) internal successors, (3172), 2178 states have internal predecessors, (3172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3172 transitions. [2024-11-23 23:00:30,350 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3172 transitions. Word has length 70 [2024-11-23 23:00:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:30,350 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3172 transitions. [2024-11-23 23:00:30,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:30,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3172 transitions. [2024-11-23 23:00:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:00:30,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:30,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:30,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:00:30,352 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:30,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:30,353 INFO L85 PathProgramCache]: Analyzing trace with hash 158979165, now seen corresponding path program 1 times [2024-11-23 23:00:30,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:30,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042508645] [2024-11-23 23:00:30,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:30,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:30,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:30,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042508645] [2024-11-23 23:00:30,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042508645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:30,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:30,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:00:30,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660932667] [2024-11-23 23:00:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:30,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:00:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:30,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:00:30,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:00:30,915 INFO L87 Difference]: Start difference. First operand 2179 states and 3172 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:31,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:31,675 INFO L93 Difference]: Finished difference Result 4688 states and 6812 transitions. [2024-11-23 23:00:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:00:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 23:00:31,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:31,682 INFO L225 Difference]: With dead ends: 4688 [2024-11-23 23:00:31,682 INFO L226 Difference]: Without dead ends: 2618 [2024-11-23 23:00:31,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:00:31,685 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 692 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:31,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 593 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:00:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2024-11-23 23:00:31,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2170. [2024-11-23 23:00:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.4568925772245274) internal successors, (3160), 2169 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3160 transitions. [2024-11-23 23:00:31,735 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3160 transitions. Word has length 70 [2024-11-23 23:00:31,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:31,735 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3160 transitions. [2024-11-23 23:00:31,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:31,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3160 transitions. [2024-11-23 23:00:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:00:31,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:31,736 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:31,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:00:31,736 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:31,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash 559312961, now seen corresponding path program 1 times [2024-11-23 23:00:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:31,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980916281] [2024-11-23 23:00:31,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:32,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:32,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980916281] [2024-11-23 23:00:32,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980916281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:32,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:32,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:00:32,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729058301] [2024-11-23 23:00:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:32,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:00:32,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:32,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:00:32,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:00:32,242 INFO L87 Difference]: Start difference. First operand 2170 states and 3160 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:32,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:32,940 INFO L93 Difference]: Finished difference Result 6383 states and 9292 transitions. [2024-11-23 23:00:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:00:32,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 23:00:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:32,960 INFO L225 Difference]: With dead ends: 6383 [2024-11-23 23:00:32,960 INFO L226 Difference]: Without dead ends: 4328 [2024-11-23 23:00:32,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:00:32,965 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 825 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:32,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 470 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:00:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2024-11-23 23:00:33,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 2170. [2024-11-23 23:00:33,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.45412632549562) internal successors, (3154), 2169 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3154 transitions. [2024-11-23 23:00:33,032 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3154 transitions. Word has length 70 [2024-11-23 23:00:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:33,032 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3154 transitions. [2024-11-23 23:00:33,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3154 transitions. [2024-11-23 23:00:33,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-23 23:00:33,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:33,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:33,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:00:33,034 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:33,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:33,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1255258839, now seen corresponding path program 1 times [2024-11-23 23:00:33,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874061547] [2024-11-23 23:00:33,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:33,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874061547] [2024-11-23 23:00:33,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874061547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:33,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:33,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:00:33,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154314638] [2024-11-23 23:00:33,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:33,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:00:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:33,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:00:33,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:00:33,487 INFO L87 Difference]: Start difference. First operand 2170 states and 3154 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:34,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:34,153 INFO L93 Difference]: Finished difference Result 6338 states and 9214 transitions. [2024-11-23 23:00:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:00:34,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-23 23:00:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:34,164 INFO L225 Difference]: With dead ends: 6338 [2024-11-23 23:00:34,164 INFO L226 Difference]: Without dead ends: 4313 [2024-11-23 23:00:34,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:00:34,168 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 818 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:34,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 441 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:00:34,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-23 23:00:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 2170. [2024-11-23 23:00:34,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.449976947902259) internal successors, (3145), 2169 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3145 transitions. [2024-11-23 23:00:34,260 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3145 transitions. Word has length 71 [2024-11-23 23:00:34,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:34,260 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3145 transitions. [2024-11-23 23:00:34,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3145 transitions. [2024-11-23 23:00:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-23 23:00:34,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:34,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:34,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:00:34,262 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:34,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:34,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1977550344, now seen corresponding path program 1 times [2024-11-23 23:00:34,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:34,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900496008] [2024-11-23 23:00:34,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:35,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:35,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900496008] [2024-11-23 23:00:35,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900496008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:35,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:35,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:00:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614250816] [2024-11-23 23:00:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:35,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:00:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:35,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:00:35,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:00:35,343 INFO L87 Difference]: Start difference. First operand 2170 states and 3145 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:36,631 INFO L93 Difference]: Finished difference Result 9005 states and 13146 transitions. [2024-11-23 23:00:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:00:36,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-23 23:00:36,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:36,652 INFO L225 Difference]: With dead ends: 9005 [2024-11-23 23:00:36,652 INFO L226 Difference]: Without dead ends: 8267 [2024-11-23 23:00:36,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:00:36,656 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 916 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:36,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1796 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:00:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2024-11-23 23:00:36,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 2168. [2024-11-23 23:00:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2167 states have (on average 1.4462390401476697) internal successors, (3134), 2167 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 3134 transitions. [2024-11-23 23:00:36,744 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 3134 transitions. Word has length 72 [2024-11-23 23:00:36,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:36,744 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 3134 transitions. [2024-11-23 23:00:36,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 3134 transitions. [2024-11-23 23:00:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-23 23:00:36,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:36,745 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:36,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:00:36,745 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:36,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:36,746 INFO L85 PathProgramCache]: Analyzing trace with hash 821766808, now seen corresponding path program 1 times [2024-11-23 23:00:36,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:36,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229291356] [2024-11-23 23:00:36,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:36,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:37,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:37,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229291356] [2024-11-23 23:00:37,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229291356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:37,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:37,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:00:37,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332239591] [2024-11-23 23:00:37,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:37,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:00:37,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:37,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:00:37,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:00:37,599 INFO L87 Difference]: Start difference. First operand 2168 states and 3134 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:38,551 INFO L93 Difference]: Finished difference Result 3276 states and 4753 transitions. [2024-11-23 23:00:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:00:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-23 23:00:38,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:38,557 INFO L225 Difference]: With dead ends: 3276 [2024-11-23 23:00:38,557 INFO L226 Difference]: Without dead ends: 2503 [2024-11-23 23:00:38,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:00:38,560 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 691 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:38,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1216 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:38,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-11-23 23:00:38,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2135. [2024-11-23 23:00:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2134 states have (on average 1.4475164011246486) internal successors, (3089), 2134 states have internal predecessors, (3089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3089 transitions. [2024-11-23 23:00:38,610 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3089 transitions. Word has length 72 [2024-11-23 23:00:38,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:38,610 INFO L471 AbstractCegarLoop]: Abstraction has 2135 states and 3089 transitions. [2024-11-23 23:00:38,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3089 transitions. [2024-11-23 23:00:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-23 23:00:38,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:38,612 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:38,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:00:38,612 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:38,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash 727688951, now seen corresponding path program 1 times [2024-11-23 23:00:38,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:38,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155929842] [2024-11-23 23:00:38,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:38,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:39,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155929842] [2024-11-23 23:00:39,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155929842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:39,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:39,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:00:39,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425012518] [2024-11-23 23:00:39,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:39,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:00:39,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:39,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:00:39,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:00:39,465 INFO L87 Difference]: Start difference. First operand 2135 states and 3089 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:40,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:40,436 INFO L93 Difference]: Finished difference Result 4918 states and 7161 transitions. [2024-11-23 23:00:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:00:40,437 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-23 23:00:40,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:40,446 INFO L225 Difference]: With dead ends: 4918 [2024-11-23 23:00:40,447 INFO L226 Difference]: Without dead ends: 4166 [2024-11-23 23:00:40,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:00:40,450 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 662 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:40,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1279 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2024-11-23 23:00:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 2117. [2024-11-23 23:00:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.4484877126654063) internal successors, (3065), 2116 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:40,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3065 transitions. [2024-11-23 23:00:40,502 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3065 transitions. Word has length 72 [2024-11-23 23:00:40,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:40,502 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 3065 transitions. [2024-11-23 23:00:40,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3065 transitions. [2024-11-23 23:00:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-23 23:00:40,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:40,503 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:40,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:00:40,504 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:40,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash 142597694, now seen corresponding path program 1 times [2024-11-23 23:00:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:40,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796639711] [2024-11-23 23:00:40,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:40,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:40,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:40,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796639711] [2024-11-23 23:00:40,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796639711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:40,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:40,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189961576] [2024-11-23 23:00:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:40,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:00:40,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:40,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:00:40,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:00:40,725 INFO L87 Difference]: Start difference. First operand 2117 states and 3065 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:40,776 INFO L93 Difference]: Finished difference Result 5006 states and 7301 transitions. [2024-11-23 23:00:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:00:40,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-23 23:00:40,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:40,784 INFO L225 Difference]: With dead ends: 5006 [2024-11-23 23:00:40,784 INFO L226 Difference]: Without dead ends: 2990 [2024-11-23 23:00:40,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:00:40,787 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 72 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:40,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 351 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-11-23 23:00:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2988. [2024-11-23 23:00:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 1.4449280214261802) internal successors, (4316), 2987 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 4316 transitions. [2024-11-23 23:00:40,860 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 4316 transitions. Word has length 73 [2024-11-23 23:00:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:40,860 INFO L471 AbstractCegarLoop]: Abstraction has 2988 states and 4316 transitions. [2024-11-23 23:00:40,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 4316 transitions. [2024-11-23 23:00:40,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-23 23:00:40,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:40,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:40,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:00:40,862 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:40,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash 976329794, now seen corresponding path program 1 times [2024-11-23 23:00:40,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:40,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083333856] [2024-11-23 23:00:40,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:41,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:41,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083333856] [2024-11-23 23:00:41,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083333856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:41,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:41,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:00:41,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419736066] [2024-11-23 23:00:41,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:41,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:41,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:41,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:41,122 INFO L87 Difference]: Start difference. First operand 2988 states and 4316 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:41,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:41,159 INFO L93 Difference]: Finished difference Result 3010 states and 4347 transitions. [2024-11-23 23:00:41,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:41,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-23 23:00:41,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:41,165 INFO L225 Difference]: With dead ends: 3010 [2024-11-23 23:00:41,165 INFO L226 Difference]: Without dead ends: 3008 [2024-11-23 23:00:41,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:41,167 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:41,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:41,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-23 23:00:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2024-11-23 23:00:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4343199201862322) internal successors, (4313), 3007 states have internal predecessors, (4313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4313 transitions. [2024-11-23 23:00:41,236 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4313 transitions. Word has length 73 [2024-11-23 23:00:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:41,236 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4313 transitions. [2024-11-23 23:00:41,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4313 transitions. [2024-11-23 23:00:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-23 23:00:41,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:41,238 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:41,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:00:41,238 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:41,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash 982723524, now seen corresponding path program 1 times [2024-11-23 23:00:41,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:41,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006026533] [2024-11-23 23:00:41,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:41,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:41,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:41,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006026533] [2024-11-23 23:00:41,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006026533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:41,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:41,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:00:41,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033435005] [2024-11-23 23:00:41,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:41,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:00:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:41,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:00:41,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:00:41,922 INFO L87 Difference]: Start difference. First operand 3008 states and 4313 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:42,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:42,783 INFO L93 Difference]: Finished difference Result 6659 states and 9598 transitions. [2024-11-23 23:00:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:00:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-23 23:00:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:42,797 INFO L225 Difference]: With dead ends: 6659 [2024-11-23 23:00:42,797 INFO L226 Difference]: Without dead ends: 5727 [2024-11-23 23:00:42,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:00:42,804 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 505 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:42,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1297 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:42,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2024-11-23 23:00:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 2905. [2024-11-23 23:00:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2905 states, 2904 states have (on average 1.4359504132231404) internal successors, (4170), 2904 states have internal predecessors, (4170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 4170 transitions. [2024-11-23 23:00:42,865 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 4170 transitions. Word has length 73 [2024-11-23 23:00:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:42,865 INFO L471 AbstractCegarLoop]: Abstraction has 2905 states and 4170 transitions. [2024-11-23 23:00:42,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 4170 transitions. [2024-11-23 23:00:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 23:00:42,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:42,868 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:42,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:00:42,868 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:42,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1282791167, now seen corresponding path program 1 times [2024-11-23 23:00:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:42,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585604328] [2024-11-23 23:00:42,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:43,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:43,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585604328] [2024-11-23 23:00:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585604328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:43,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:43,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:43,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271573977] [2024-11-23 23:00:43,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:43,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:43,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:43,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:43,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:43,011 INFO L87 Difference]: Start difference. First operand 2905 states and 4170 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:43,049 INFO L93 Difference]: Finished difference Result 6167 states and 8889 transitions. [2024-11-23 23:00:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:43,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-23 23:00:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:43,059 INFO L225 Difference]: With dead ends: 6167 [2024-11-23 23:00:43,060 INFO L226 Difference]: Without dead ends: 4131 [2024-11-23 23:00:43,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:43,063 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:43,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 320 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2024-11-23 23:00:43,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3945. [2024-11-23 23:00:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3944 states have (on average 1.4269776876267748) internal successors, (5628), 3944 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5628 transitions. [2024-11-23 23:00:43,119 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5628 transitions. Word has length 97 [2024-11-23 23:00:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:43,119 INFO L471 AbstractCegarLoop]: Abstraction has 3945 states and 5628 transitions. [2024-11-23 23:00:43,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5628 transitions. [2024-11-23 23:00:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:00:43,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:43,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:43,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:00:43,121 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:43,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:43,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1136033977, now seen corresponding path program 1 times [2024-11-23 23:00:43,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:43,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293028565] [2024-11-23 23:00:43,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:43,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:43,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293028565] [2024-11-23 23:00:43,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293028565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:43,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718940604] [2024-11-23 23:00:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:43,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:00:43,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:43,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:00:43,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:43,310 INFO L87 Difference]: Start difference. First operand 3945 states and 5628 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:43,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:43,655 INFO L93 Difference]: Finished difference Result 13309 states and 19184 transitions. [2024-11-23 23:00:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:00:43,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-23 23:00:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:43,674 INFO L225 Difference]: With dead ends: 13309 [2024-11-23 23:00:43,674 INFO L226 Difference]: Without dead ends: 9467 [2024-11-23 23:00:43,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:00:43,680 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 711 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:43,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 268 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:00:43,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9467 states. [2024-11-23 23:00:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9467 to 8625. [2024-11-23 23:00:43,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8625 states, 8624 states have (on average 1.4286873840445269) internal successors, (12321), 8624 states have internal predecessors, (12321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8625 states to 8625 states and 12321 transitions. [2024-11-23 23:00:43,804 INFO L78 Accepts]: Start accepts. Automaton has 8625 states and 12321 transitions. Word has length 99 [2024-11-23 23:00:43,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:43,804 INFO L471 AbstractCegarLoop]: Abstraction has 8625 states and 12321 transitions. [2024-11-23 23:00:43,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8625 states and 12321 transitions. [2024-11-23 23:00:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:00:43,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:43,807 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:43,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 23:00:43,807 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:43,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:43,808 INFO L85 PathProgramCache]: Analyzing trace with hash -713465523, now seen corresponding path program 1 times [2024-11-23 23:00:43,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:43,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882024098] [2024-11-23 23:00:43,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:43,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:44,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:44,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882024098] [2024-11-23 23:00:44,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882024098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:44,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:44,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:44,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285717637] [2024-11-23 23:00:44,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:44,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:00:44,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:44,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:00:44,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:44,002 INFO L87 Difference]: Start difference. First operand 8625 states and 12321 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:44,453 INFO L93 Difference]: Finished difference Result 31381 states and 45311 transitions. [2024-11-23 23:00:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:00:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-23 23:00:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:44,509 INFO L225 Difference]: With dead ends: 31381 [2024-11-23 23:00:44,509 INFO L226 Difference]: Without dead ends: 22859 [2024-11-23 23:00:44,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:00:44,523 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 796 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:44,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 270 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22859 states. [2024-11-23 23:00:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22859 to 18825. [2024-11-23 23:00:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18825 states, 18824 states have (on average 1.4281236719082022) internal successors, (26883), 18824 states have internal predecessors, (26883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18825 states to 18825 states and 26883 transitions. [2024-11-23 23:00:44,797 INFO L78 Accepts]: Start accepts. Automaton has 18825 states and 26883 transitions. Word has length 99 [2024-11-23 23:00:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:44,798 INFO L471 AbstractCegarLoop]: Abstraction has 18825 states and 26883 transitions. [2024-11-23 23:00:44,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 18825 states and 26883 transitions. [2024-11-23 23:00:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:00:44,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:44,799 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 23:00:44,799 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:44,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:44,800 INFO L85 PathProgramCache]: Analyzing trace with hash 748112851, now seen corresponding path program 1 times [2024-11-23 23:00:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:44,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416970491] [2024-11-23 23:00:44,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:44,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:45,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:45,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416970491] [2024-11-23 23:00:45,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416970491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:45,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:45,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:00:45,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646479948] [2024-11-23 23:00:45,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:45,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:00:45,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:45,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:00:45,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:45,015 INFO L87 Difference]: Start difference. First operand 18825 states and 26883 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:45,456 INFO L93 Difference]: Finished difference Result 42655 states and 61170 transitions. [2024-11-23 23:00:45,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:00:45,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-23 23:00:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:45,514 INFO L225 Difference]: With dead ends: 42655 [2024-11-23 23:00:45,514 INFO L226 Difference]: Without dead ends: 23933 [2024-11-23 23:00:45,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:00:45,534 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 720 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:45,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 304 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23933 states. [2024-11-23 23:00:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23933 to 20427. [2024-11-23 23:00:45,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20427 states, 20426 states have (on average 1.4250465093508273) internal successors, (29108), 20426 states have internal predecessors, (29108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:45,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20427 states to 20427 states and 29108 transitions. [2024-11-23 23:00:45,928 INFO L78 Accepts]: Start accepts. Automaton has 20427 states and 29108 transitions. Word has length 99 [2024-11-23 23:00:45,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:45,928 INFO L471 AbstractCegarLoop]: Abstraction has 20427 states and 29108 transitions. [2024-11-23 23:00:45,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 20427 states and 29108 transitions. [2024-11-23 23:00:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:00:45,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:45,935 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:45,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 23:00:45,937 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:45,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 155619384, now seen corresponding path program 1 times [2024-11-23 23:00:45,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:45,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910871211] [2024-11-23 23:00:45,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:45,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-23 23:00:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:46,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910871211] [2024-11-23 23:00:46,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910871211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:46,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:46,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362391239] [2024-11-23 23:00:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:46,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:46,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:46,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:46,088 INFO L87 Difference]: Start difference. First operand 20427 states and 29108 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:46,210 INFO L93 Difference]: Finished difference Result 38959 states and 55378 transitions. [2024-11-23 23:00:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:46,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-23 23:00:46,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:46,252 INFO L225 Difference]: With dead ends: 38959 [2024-11-23 23:00:46,252 INFO L226 Difference]: Without dead ends: 18647 [2024-11-23 23:00:46,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:46,267 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 59 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:46,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 311 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18647 states. [2024-11-23 23:00:46,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18647 to 18105. [2024-11-23 23:00:46,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18105 states, 18104 states have (on average 1.4064847547503314) internal successors, (25463), 18104 states have internal predecessors, (25463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18105 states to 18105 states and 25463 transitions. [2024-11-23 23:00:46,689 INFO L78 Accepts]: Start accepts. Automaton has 18105 states and 25463 transitions. Word has length 122 [2024-11-23 23:00:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:46,690 INFO L471 AbstractCegarLoop]: Abstraction has 18105 states and 25463 transitions. [2024-11-23 23:00:46,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 18105 states and 25463 transitions. [2024-11-23 23:00:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 23:00:46,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:46,697 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:46,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 23:00:46,698 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:46,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:46,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2025959497, now seen corresponding path program 1 times [2024-11-23 23:00:46,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:46,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861345625] [2024-11-23 23:00:46,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:46,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:46,917 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 23:00:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:46,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861345625] [2024-11-23 23:00:46,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861345625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:46,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:46,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251120137] [2024-11-23 23:00:46,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:46,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:46,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:46,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:46,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:46,919 INFO L87 Difference]: Start difference. First operand 18105 states and 25463 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:47,068 INFO L93 Difference]: Finished difference Result 34345 states and 48129 transitions. [2024-11-23 23:00:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-23 23:00:47,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:47,109 INFO L225 Difference]: With dead ends: 34345 [2024-11-23 23:00:47,110 INFO L226 Difference]: Without dead ends: 16343 [2024-11-23 23:00:47,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:47,125 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 52 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:47,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:47,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16343 states. [2024-11-23 23:00:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16343 to 15837. [2024-11-23 23:00:47,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15837 states, 15836 states have (on average 1.385135135135135) internal successors, (21935), 15836 states have internal predecessors, (21935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15837 states to 15837 states and 21935 transitions. [2024-11-23 23:00:47,431 INFO L78 Accepts]: Start accepts. Automaton has 15837 states and 21935 transitions. Word has length 123 [2024-11-23 23:00:47,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:47,432 INFO L471 AbstractCegarLoop]: Abstraction has 15837 states and 21935 transitions. [2024-11-23 23:00:47,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15837 states and 21935 transitions. [2024-11-23 23:00:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:00:47,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:47,437 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:47,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 23:00:47,437 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:47,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1620536471, now seen corresponding path program 1 times [2024-11-23 23:00:47,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:47,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530324341] [2024-11-23 23:00:47,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:00:47,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:47,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530324341] [2024-11-23 23:00:47,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530324341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:47,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:47,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:47,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047894885] [2024-11-23 23:00:47,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:47,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:47,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:47,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:47,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:47,653 INFO L87 Difference]: Start difference. First operand 15837 states and 21935 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:47,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:47,791 INFO L93 Difference]: Finished difference Result 45457 states and 62561 transitions. [2024-11-23 23:00:47,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:47,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-23 23:00:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:47,866 INFO L225 Difference]: With dead ends: 45457 [2024-11-23 23:00:47,867 INFO L226 Difference]: Without dead ends: 29723 [2024-11-23 23:00:47,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:47,882 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 45 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:47,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 313 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29723 states. [2024-11-23 23:00:48,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29723 to 27369. [2024-11-23 23:00:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27369 states, 27368 states have (on average 1.3656460099386145) internal successors, (37375), 27368 states have internal predecessors, (37375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27369 states to 27369 states and 37375 transitions. [2024-11-23 23:00:48,372 INFO L78 Accepts]: Start accepts. Automaton has 27369 states and 37375 transitions. Word has length 124 [2024-11-23 23:00:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:48,372 INFO L471 AbstractCegarLoop]: Abstraction has 27369 states and 37375 transitions. [2024-11-23 23:00:48,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 27369 states and 37375 transitions. [2024-11-23 23:00:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:00:48,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:48,377 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:48,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 23:00:48,378 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:48,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1131627674, now seen corresponding path program 1 times [2024-11-23 23:00:48,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:48,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782805473] [2024-11-23 23:00:48,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:48,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:49,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:49,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782805473] [2024-11-23 23:00:49,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782805473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:49,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713450328] [2024-11-23 23:00:49,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:49,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:49,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:49,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:00:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:49,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-23 23:00:49,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:01:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 23:01:01,192 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:01:01,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713450328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:01,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:01:01,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [11] total 39 [2024-11-23 23:01:01,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718031570] [2024-11-23 23:01:01,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:01,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-23 23:01:01,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:01,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-23 23:01:01,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1340, Unknown=0, NotChecked=0, Total=1560 [2024-11-23 23:01:01,195 INFO L87 Difference]: Start difference. First operand 27369 states and 37375 transitions. Second operand has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:10,904 INFO L93 Difference]: Finished difference Result 79345 states and 108417 transitions. [2024-11-23 23:01:10,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 23:01:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-23 23:01:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:11,003 INFO L225 Difference]: With dead ends: 79345 [2024-11-23 23:01:11,003 INFO L226 Difference]: Without dead ends: 54665 [2024-11-23 23:01:11,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=451, Invalid=2518, Unknown=1, NotChecked=0, Total=2970 [2024-11-23 23:01:11,030 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 403 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:11,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 964 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-23 23:01:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54665 states. [2024-11-23 23:01:11,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54665 to 27377. [2024-11-23 23:01:11,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27377 states, 27376 states have (on average 1.3655756867329047) internal successors, (37384), 27376 states have internal predecessors, (37384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:11,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27377 states to 27377 states and 37384 transitions. [2024-11-23 23:01:11,703 INFO L78 Accepts]: Start accepts. Automaton has 27377 states and 37384 transitions. Word has length 125 [2024-11-23 23:01:11,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:11,704 INFO L471 AbstractCegarLoop]: Abstraction has 27377 states and 37384 transitions. [2024-11-23 23:01:11,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 27377 states and 37384 transitions. [2024-11-23 23:01:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 23:01:11,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:11,710 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:11,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:01:11,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:01:11,911 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:11,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:11,912 INFO L85 PathProgramCache]: Analyzing trace with hash 127944595, now seen corresponding path program 1 times [2024-11-23 23:01:11,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:11,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159619427] [2024-11-23 23:01:11,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:11,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:12,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:12,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159619427] [2024-11-23 23:01:12,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159619427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:01:12,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709650257] [2024-11-23 23:01:12,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:12,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:01:12,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:01:12,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:01:12,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:01:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:12,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 23:01:12,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:01:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:14,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:01:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709650257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:01:15,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:01:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2024-11-23 23:01:15,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787725204] [2024-11-23 23:01:15,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:01:15,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-23 23:01:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:15,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-23 23:01:15,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-11-23 23:01:15,914 INFO L87 Difference]: Start difference. First operand 27377 states and 37384 transitions. Second operand has 29 states, 29 states have (on average 11.344827586206897) internal successors, (329), 28 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:20,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:20,392 INFO L93 Difference]: Finished difference Result 179195 states and 242260 transitions. [2024-11-23 23:01:20,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-23 23:01:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.344827586206897) internal successors, (329), 28 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-23 23:01:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:20,793 INFO L225 Difference]: With dead ends: 179195 [2024-11-23 23:01:20,793 INFO L226 Difference]: Without dead ends: 151929 [2024-11-23 23:01:20,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1998 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1715, Invalid=5767, Unknown=0, NotChecked=0, Total=7482 [2024-11-23 23:01:20,826 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 2645 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:20,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 1696 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:01:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151929 states. [2024-11-23 23:01:21,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151929 to 65519. [2024-11-23 23:01:22,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65519 states, 65518 states have (on average 1.3615189718855887) internal successors, (89204), 65518 states have internal predecessors, (89204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65519 states to 65519 states and 89204 transitions. [2024-11-23 23:01:22,123 INFO L78 Accepts]: Start accepts. Automaton has 65519 states and 89204 transitions. Word has length 126 [2024-11-23 23:01:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:22,123 INFO L471 AbstractCegarLoop]: Abstraction has 65519 states and 89204 transitions. [2024-11-23 23:01:22,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.344827586206897) internal successors, (329), 28 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 65519 states and 89204 transitions. [2024-11-23 23:01:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 23:01:22,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:22,131 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:22,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:01:22,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-23 23:01:22,332 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:22,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -612030348, now seen corresponding path program 1 times [2024-11-23 23:01:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858566772] [2024-11-23 23:01:22,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:23,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:23,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858566772] [2024-11-23 23:01:23,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858566772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:01:23,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882110197] [2024-11-23 23:01:23,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:23,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:01:23,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:01:23,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:01:23,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:01:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:23,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 23:01:23,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:01:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:24,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:01:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:26,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882110197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:01:26,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:01:26,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-11-23 23:01:26,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123286442] [2024-11-23 23:01:26,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:01:26,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-23 23:01:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:26,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-23 23:01:26,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:01:26,634 INFO L87 Difference]: Start difference. First operand 65519 states and 89204 transitions. Second operand has 32 states, 32 states have (on average 10.6875) internal successors, (342), 31 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:43,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:43,126 INFO L93 Difference]: Finished difference Result 578112 states and 779011 transitions. [2024-11-23 23:01:43,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-11-23 23:01:43,127 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.6875) internal successors, (342), 31 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-23 23:01:43,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:44,368 INFO L225 Difference]: With dead ends: 578112 [2024-11-23 23:01:44,368 INFO L226 Difference]: Without dead ends: 512734 [2024-11-23 23:01:44,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10634 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=4730, Invalid=28212, Unknown=0, NotChecked=0, Total=32942 [2024-11-23 23:01:44,457 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 2988 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 4676 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:44,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 3491 Invalid, 4729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 4676 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-23 23:01:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512734 states. [2024-11-23 23:01:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512734 to 317638. [2024-11-23 23:01:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317638 states, 317637 states have (on average 1.353104329785258) internal successors, (429796), 317637 states have internal predecessors, (429796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317638 states to 317638 states and 429796 transitions. [2024-11-23 23:01:51,193 INFO L78 Accepts]: Start accepts. Automaton has 317638 states and 429796 transitions. Word has length 126 [2024-11-23 23:01:51,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:51,194 INFO L471 AbstractCegarLoop]: Abstraction has 317638 states and 429796 transitions. [2024-11-23 23:01:51,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.6875) internal successors, (342), 31 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:01:51,194 INFO L276 IsEmpty]: Start isEmpty. Operand 317638 states and 429796 transitions. [2024-11-23 23:01:51,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 23:01:51,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:51,220 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:51,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:01:51,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-23 23:01:51,421 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:51,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:51,423 INFO L85 PathProgramCache]: Analyzing trace with hash -887349454, now seen corresponding path program 1 times [2024-11-23 23:01:51,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:51,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737165347] [2024-11-23 23:01:51,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:51,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:52,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737165347] [2024-11-23 23:01:52,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737165347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:01:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122564619] [2024-11-23 23:01:52,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:52,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:01:52,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:01:52,348 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:01:52,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:01:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:52,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 23:01:52,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:01:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:53,950 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:01:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:01:57,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122564619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:01:57,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:01:57,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2024-11-23 23:01:57,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77587328] [2024-11-23 23:01:57,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:01:57,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-23 23:01:57,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:57,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-23 23:01:57,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2024-11-23 23:01:57,201 INFO L87 Difference]: Start difference. First operand 317638 states and 429796 transitions. Second operand has 29 states, 29 states have (on average 11.96551724137931) internal successors, (347), 28 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:18,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:18,073 INFO L93 Difference]: Finished difference Result 1656401 states and 2229299 transitions. [2024-11-23 23:02:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2024-11-23 23:02:18,074 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.96551724137931) internal successors, (347), 28 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-23 23:02:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:20,912 INFO L225 Difference]: With dead ends: 1656401 [2024-11-23 23:02:20,912 INFO L226 Difference]: Without dead ends: 1348021 [2024-11-23 23:02:21,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11779 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=4113, Invalid=30297, Unknown=0, NotChecked=0, Total=34410 [2024-11-23 23:02:21,123 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 3717 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 5452 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 5513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 5452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:21,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 2839 Invalid, 5513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 5452 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-23 23:02:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348021 states. [2024-11-23 23:02:32,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348021 to 543011. [2024-11-23 23:02:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543011 states, 543010 states have (on average 1.344413546711847) internal successors, (730030), 543010 states have internal predecessors, (730030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543011 states to 543011 states and 730030 transitions. [2024-11-23 23:02:35,178 INFO L78 Accepts]: Start accepts. Automaton has 543011 states and 730030 transitions. Word has length 126 [2024-11-23 23:02:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:35,178 INFO L471 AbstractCegarLoop]: Abstraction has 543011 states and 730030 transitions. [2024-11-23 23:02:35,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.96551724137931) internal successors, (347), 28 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 543011 states and 730030 transitions. [2024-11-23 23:02:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 23:02:35,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:35,203 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:35,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:02:35,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-23 23:02:35,403 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:35,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:35,404 INFO L85 PathProgramCache]: Analyzing trace with hash 626177035, now seen corresponding path program 1 times [2024-11-23 23:02:35,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:35,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510093668] [2024-11-23 23:02:35,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:35,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:02:36,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:36,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510093668] [2024-11-23 23:02:36,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510093668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:02:36,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555380923] [2024-11-23 23:02:36,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:36,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:36,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:36,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:36,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e75307f-cfe2-4c30-afbc-198bd500b5d7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:02:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:36,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:02:36,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:02:38,684 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:02:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:02:40,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555380923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:02:40,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:02:40,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 34 [2024-11-23 23:02:40,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497395724] [2024-11-23 23:02:40,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:02:40,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-23 23:02:40,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:40,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-23 23:02:40,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-23 23:02:40,928 INFO L87 Difference]: Start difference. First operand 543011 states and 730030 transitions. Second operand has 35 states, 35 states have (on average 9.371428571428572) internal successors, (328), 34 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:02:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:53,532 INFO L93 Difference]: Finished difference Result 2271500 states and 3036665 transitions. [2024-11-23 23:02:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-23 23:02:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 9.371428571428572) internal successors, (328), 34 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-23 23:02:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted.