./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.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_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/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_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/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_552909de-de37-4aa1-8731-5463ac38351b/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 bb7f3b8fa32d5493bfca7086e69548af9d6372d67a054dd07846784fcdf24eca --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:10:03,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:10:03,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:10:03,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:10:03,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:10:03,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:10:03,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:10:03,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:10:03,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:10:03,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:10:03,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:10:03,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:10:03,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:10:03,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:10:03,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:10:03,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:10:03,642 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:10:03,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:03,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:03,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:03,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:03,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:10:03,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:10:03,646 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:10:03,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:10:03,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:10:03,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:10:03,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:10:03,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:10:03,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:10:03,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:10:03,647 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_552909de-de37-4aa1-8731-5463ac38351b/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 -> bb7f3b8fa32d5493bfca7086e69548af9d6372d67a054dd07846784fcdf24eca [2024-11-24 00:10:04,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:10:04,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:10:04,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:10:04,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:10:04,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:10:04,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-24 00:10:07,431 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/data/f5c00eea9/2d6411ee6c9544c6830c0a412bfecec8/FLAGbc0eecf07 [2024-11-24 00:10:07,812 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:10:07,813 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-24 00:10:07,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/data/f5c00eea9/2d6411ee6c9544c6830c0a412bfecec8/FLAGbc0eecf07 [2024-11-24 00:10:07,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/data/f5c00eea9/2d6411ee6c9544c6830c0a412bfecec8 [2024-11-24 00:10:07,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:10:07,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:10:07,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:07,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:10:07,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:10:07,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:07" (1/1) ... [2024-11-24 00:10:07,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265f18e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:07, skipping insertion in model container [2024-11-24 00:10:07,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:07" (1/1) ... [2024-11-24 00:10:07,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:10:08,371 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_552909de-de37-4aa1-8731-5463ac38351b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[9241,9254] [2024-11-24 00:10:08,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:08,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:10:08,653 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_552909de-de37-4aa1-8731-5463ac38351b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[9241,9254] [2024-11-24 00:10:08,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:08,720 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:10:08,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08 WrapperNode [2024-11-24 00:10:08,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:08,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:08,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:10:08,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:10:08,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,830 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 809 [2024-11-24 00:10:08,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:08,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:10:08,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:10:08,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:10:08,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,892 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]. [2024-11-24 00:10:08,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,915 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:10:08,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:10:08,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:10:08,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:10:08,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (1/1) ... [2024-11-24 00:10:08,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:08,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:08,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:10:08,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:10:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:10:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:10:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:10:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:10:09,214 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:10:09,217 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:10:10,406 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-24 00:10:10,406 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:10:10,436 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:10:10,436 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:10:10,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:10 BoogieIcfgContainer [2024-11-24 00:10:10,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:10:10,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:10:10,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:10:10,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:10:10,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:10:07" (1/3) ... [2024-11-24 00:10:10,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df33ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:10, skipping insertion in model container [2024-11-24 00:10:10,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:08" (2/3) ... [2024-11-24 00:10:10,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df33ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:10, skipping insertion in model container [2024-11-24 00:10:10,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:10" (3/3) ... [2024-11-24 00:10:10,452 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-24 00:10:10,472 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:10:10,477 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c that has 1 procedures, 178 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:10:10,568 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:10:10,584 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;@401c2199, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:10:10,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:10:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7613636363636365) internal successors, (310), 177 states have internal predecessors, (310), 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) [2024-11-24 00:10:10,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 00:10:10,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:10,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:10,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:10,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2136906399, now seen corresponding path program 1 times [2024-11-24 00:10:10,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:10,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825310847] [2024-11-24 00:10:10,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:10,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825310847] [2024-11-24 00:10:11,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825310847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:11,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:11,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:11,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359962265] [2024-11-24 00:10:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:11,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:11,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:11,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:11,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:12,001 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7613636363636365) internal successors, (310), 177 states have internal predecessors, (310), 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 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:12,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:12,860 INFO L93 Difference]: Finished difference Result 1147 states and 1843 transitions. [2024-11-24 00:10:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:10:12,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-24 00:10:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:12,886 INFO L225 Difference]: With dead ends: 1147 [2024-11-24 00:10:12,886 INFO L226 Difference]: Without dead ends: 1037 [2024-11-24 00:10:12,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:10:12,897 INFO L435 NwaCegarLoop]: 719 mSDtfsCounter, 2029 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:12,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 3789 Invalid, 315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:12,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-24 00:10:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 270. [2024-11-24 00:10:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 269 states have (on average 1.449814126394052) internal successors, (390), 269 states have internal predecessors, (390), 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) [2024-11-24 00:10:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 390 transitions. [2024-11-24 00:10:13,000 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 390 transitions. Word has length 91 [2024-11-24 00:10:13,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:13,001 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 390 transitions. [2024-11-24 00:10:13,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 390 transitions. [2024-11-24 00:10:13,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:13,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:13,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:13,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:10:13,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:13,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:13,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1446649810, now seen corresponding path program 1 times [2024-11-24 00:10:13,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:13,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226507746] [2024-11-24 00:10:13,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:13,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:13,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:13,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226507746] [2024-11-24 00:10:13,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226507746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:13,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:13,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:13,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096841456] [2024-11-24 00:10:13,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:13,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:13,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:13,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:13,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:13,505 INFO L87 Difference]: Start difference. First operand 270 states and 390 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:13,942 INFO L93 Difference]: Finished difference Result 1236 states and 1911 transitions. [2024-11-24 00:10:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:13,950 INFO L225 Difference]: With dead ends: 1236 [2024-11-24 00:10:13,950 INFO L226 Difference]: Without dead ends: 1096 [2024-11-24 00:10:13,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:13,952 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 1353 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:13,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2091 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:10:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-11-24 00:10:14,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 429. [2024-11-24 00:10:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.5) internal successors, (642), 428 states have internal predecessors, (642), 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) [2024-11-24 00:10:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 642 transitions. [2024-11-24 00:10:14,032 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 642 transitions. Word has length 93 [2024-11-24 00:10:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:14,036 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 642 transitions. [2024-11-24 00:10:14,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 642 transitions. [2024-11-24 00:10:14,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:14,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:14,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:14,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:10:14,039 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:14,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:14,042 INFO L85 PathProgramCache]: Analyzing trace with hash 529896762, now seen corresponding path program 1 times [2024-11-24 00:10:14,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:14,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699519664] [2024-11-24 00:10:14,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:14,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699519664] [2024-11-24 00:10:14,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699519664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:14,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:14,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:14,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376991432] [2024-11-24 00:10:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:14,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:14,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:14,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:14,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:14,562 INFO L87 Difference]: Start difference. First operand 429 states and 642 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:14,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:14,980 INFO L93 Difference]: Finished difference Result 1390 states and 2155 transitions. [2024-11-24 00:10:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:14,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:14,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:14,988 INFO L225 Difference]: With dead ends: 1390 [2024-11-24 00:10:14,988 INFO L226 Difference]: Without dead ends: 1250 [2024-11-24 00:10:14,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:14,990 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 1559 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:14,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1786 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:14,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-24 00:10:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 652. [2024-11-24 00:10:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 651 states have (on average 1.5284178187403994) internal successors, (995), 651 states have internal predecessors, (995), 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) [2024-11-24 00:10:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 995 transitions. [2024-11-24 00:10:15,045 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 995 transitions. Word has length 93 [2024-11-24 00:10:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:15,046 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 995 transitions. [2024-11-24 00:10:15,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 995 transitions. [2024-11-24 00:10:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:15,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:15,053 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:15,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:10:15,053 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:15,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:15,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1234930226, now seen corresponding path program 1 times [2024-11-24 00:10:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:15,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184513474] [2024-11-24 00:10:15,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:15,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:15,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:15,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184513474] [2024-11-24 00:10:15,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184513474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:15,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:15,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:15,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329366536] [2024-11-24 00:10:15,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:15,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:15,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:15,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:15,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:15,492 INFO L87 Difference]: Start difference. First operand 652 states and 995 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:15,864 INFO L93 Difference]: Finished difference Result 1539 states and 2391 transitions. [2024-11-24 00:10:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:15,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:15,871 INFO L225 Difference]: With dead ends: 1539 [2024-11-24 00:10:15,871 INFO L226 Difference]: Without dead ends: 1399 [2024-11-24 00:10:15,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:15,874 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 1757 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:15,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 1934 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:15,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-24 00:10:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 796. [2024-11-24 00:10:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 1.538364779874214) internal successors, (1223), 795 states have internal predecessors, (1223), 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) [2024-11-24 00:10:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1223 transitions. [2024-11-24 00:10:15,924 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1223 transitions. Word has length 93 [2024-11-24 00:10:15,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:15,925 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1223 transitions. [2024-11-24 00:10:15,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:15,926 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1223 transitions. [2024-11-24 00:10:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:15,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:15,927 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:15,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:10:15,927 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:15,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:15,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1576423674, now seen corresponding path program 1 times [2024-11-24 00:10:15,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:15,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845692037] [2024-11-24 00:10:15,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:15,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:16,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845692037] [2024-11-24 00:10:16,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845692037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:16,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:16,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:16,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730837554] [2024-11-24 00:10:16,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:16,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:16,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:16,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:16,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:16,255 INFO L87 Difference]: Start difference. First operand 796 states and 1223 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:16,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:16,592 INFO L93 Difference]: Finished difference Result 1678 states and 2611 transitions. [2024-11-24 00:10:16,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:16,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:16,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:16,600 INFO L225 Difference]: With dead ends: 1678 [2024-11-24 00:10:16,600 INFO L226 Difference]: Without dead ends: 1538 [2024-11-24 00:10:16,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:16,602 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 1864 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:16,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 1808 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2024-11-24 00:10:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 935. [2024-11-24 00:10:16,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.544967880085653) internal successors, (1443), 934 states have internal predecessors, (1443), 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) [2024-11-24 00:10:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1443 transitions. [2024-11-24 00:10:16,644 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1443 transitions. Word has length 93 [2024-11-24 00:10:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:16,644 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1443 transitions. [2024-11-24 00:10:16,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1443 transitions. [2024-11-24 00:10:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:16,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:16,646 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:16,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:10:16,646 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:16,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:16,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1813331907, now seen corresponding path program 1 times [2024-11-24 00:10:16,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:16,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442439949] [2024-11-24 00:10:16,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:16,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:17,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:17,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442439949] [2024-11-24 00:10:17,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442439949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:17,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:17,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:17,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175749774] [2024-11-24 00:10:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:17,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:17,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:17,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:17,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:17,345 INFO L87 Difference]: Start difference. First operand 935 states and 1443 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:17,820 INFO L93 Difference]: Finished difference Result 1698 states and 2650 transitions. [2024-11-24 00:10:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:17,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:17,825 INFO L225 Difference]: With dead ends: 1698 [2024-11-24 00:10:17,826 INFO L226 Difference]: Without dead ends: 937 [2024-11-24 00:10:17,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:10:17,828 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 448 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:17,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 956 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:17,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-24 00:10:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 935. [2024-11-24 00:10:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.5385438972162742) internal successors, (1437), 934 states have internal predecessors, (1437), 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) [2024-11-24 00:10:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1437 transitions. [2024-11-24 00:10:17,867 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1437 transitions. Word has length 93 [2024-11-24 00:10:17,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:17,867 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1437 transitions. [2024-11-24 00:10:17,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1437 transitions. [2024-11-24 00:10:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:17,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:17,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:17,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:10:17,869 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:17,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1570207556, now seen corresponding path program 1 times [2024-11-24 00:10:17,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:17,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769013705] [2024-11-24 00:10:17,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:18,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769013705] [2024-11-24 00:10:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769013705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:18,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:18,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:10:18,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902397426] [2024-11-24 00:10:18,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:18,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:10:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:18,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:10:18,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:10:18,010 INFO L87 Difference]: Start difference. First operand 935 states and 1437 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:18,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:18,063 INFO L93 Difference]: Finished difference Result 2386 states and 3718 transitions. [2024-11-24 00:10:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:10:18,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:18,071 INFO L225 Difference]: With dead ends: 2386 [2024-11-24 00:10:18,072 INFO L226 Difference]: Without dead ends: 1625 [2024-11-24 00:10:18,074 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 [2024-11-24 00:10:18,075 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 99 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 562 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 [2024-11-24 00:10:18,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 562 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2024-11-24 00:10:18,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1623. [2024-11-24 00:10:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1622 states have (on average 1.5382244143033292) internal successors, (2495), 1622 states have internal predecessors, (2495), 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) [2024-11-24 00:10:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2495 transitions. [2024-11-24 00:10:18,138 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2495 transitions. Word has length 93 [2024-11-24 00:10:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:18,139 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2495 transitions. [2024-11-24 00:10:18,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2495 transitions. [2024-11-24 00:10:18,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:18,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:18,142 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:18,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:10:18,143 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:18,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:18,143 INFO L85 PathProgramCache]: Analyzing trace with hash -906608998, now seen corresponding path program 1 times [2024-11-24 00:10:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:18,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130661973] [2024-11-24 00:10:18,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:18,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:18,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130661973] [2024-11-24 00:10:18,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130661973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:18,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:18,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:18,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042023380] [2024-11-24 00:10:18,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:18,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:18,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:18,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:18,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:18,509 INFO L87 Difference]: Start difference. First operand 1623 states and 2495 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:18,869 INFO L93 Difference]: Finished difference Result 3260 states and 5043 transitions. [2024-11-24 00:10:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:18,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:18,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:18,883 INFO L225 Difference]: With dead ends: 3260 [2024-11-24 00:10:18,883 INFO L226 Difference]: Without dead ends: 2995 [2024-11-24 00:10:18,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:18,887 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 1630 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:18,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 2500 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-11-24 00:10:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1897. [2024-11-24 00:10:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1896 states have (on average 1.5411392405063291) internal successors, (2922), 1896 states have internal predecessors, (2922), 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) [2024-11-24 00:10:18,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2922 transitions. [2024-11-24 00:10:18,972 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2922 transitions. Word has length 93 [2024-11-24 00:10:18,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:18,972 INFO L471 AbstractCegarLoop]: Abstraction has 1897 states and 2922 transitions. [2024-11-24 00:10:18,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:18,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2922 transitions. [2024-11-24 00:10:18,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:10:18,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:18,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:18,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:10:18,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:18,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash 861848230, now seen corresponding path program 1 times [2024-11-24 00:10:18,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:18,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007832123] [2024-11-24 00:10:18,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:18,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:19,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:19,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007832123] [2024-11-24 00:10:19,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007832123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:19,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:19,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:19,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314786407] [2024-11-24 00:10:19,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:19,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:19,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:19,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:19,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:19,324 INFO L87 Difference]: Start difference. First operand 1897 states and 2922 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:19,685 INFO L93 Difference]: Finished difference Result 3544 states and 5486 transitions. [2024-11-24 00:10:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:19,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-24 00:10:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:19,699 INFO L225 Difference]: With dead ends: 3544 [2024-11-24 00:10:19,700 INFO L226 Difference]: Without dead ends: 3279 [2024-11-24 00:10:19,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:19,702 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 1746 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:19,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2267 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:19,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-11-24 00:10:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2181. [2024-11-24 00:10:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5435779816513762) internal successors, (3365), 2180 states have internal predecessors, (3365), 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) [2024-11-24 00:10:19,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3365 transitions. [2024-11-24 00:10:19,795 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3365 transitions. Word has length 93 [2024-11-24 00:10:19,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:19,796 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3365 transitions. [2024-11-24 00:10:19,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:19,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3365 transitions. [2024-11-24 00:10:19,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:10:19,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:19,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:19,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:10:19,798 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:19,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:19,799 INFO L85 PathProgramCache]: Analyzing trace with hash 376805043, now seen corresponding path program 1 times [2024-11-24 00:10:19,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:19,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471015240] [2024-11-24 00:10:19,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:19,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471015240] [2024-11-24 00:10:19,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471015240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:19,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:19,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:19,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100442017] [2024-11-24 00:10:19,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:19,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:19,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:19,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:19,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:19,991 INFO L87 Difference]: Start difference. First operand 2181 states and 3365 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:20,226 INFO L93 Difference]: Finished difference Result 4311 states and 6677 transitions. [2024-11-24 00:10:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-24 00:10:20,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:20,235 INFO L225 Difference]: With dead ends: 4311 [2024-11-24 00:10:20,235 INFO L226 Difference]: Without dead ends: 2181 [2024-11-24 00:10:20,237 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 [2024-11-24 00:10:20,238 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 648 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:20,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 139 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-24 00:10:20,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-24 00:10:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5293577981651376) internal successors, (3334), 2180 states have internal predecessors, (3334), 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) [2024-11-24 00:10:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3334 transitions. [2024-11-24 00:10:20,301 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3334 transitions. Word has length 94 [2024-11-24 00:10:20,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:20,301 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3334 transitions. [2024-11-24 00:10:20,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:20,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3334 transitions. [2024-11-24 00:10:20,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:10:20,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:20,303 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:20,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:10:20,304 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:20,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1521549230, now seen corresponding path program 1 times [2024-11-24 00:10:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:20,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500644469] [2024-11-24 00:10:20,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:20,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:20,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:20,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500644469] [2024-11-24 00:10:20,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500644469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:20,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:20,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:20,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611365525] [2024-11-24 00:10:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:20,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:20,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:20,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:20,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:20,480 INFO L87 Difference]: Start difference. First operand 2181 states and 3334 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:20,679 INFO L93 Difference]: Finished difference Result 4315 states and 6620 transitions. [2024-11-24 00:10:20,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:20,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-24 00:10:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:20,687 INFO L225 Difference]: With dead ends: 4315 [2024-11-24 00:10:20,688 INFO L226 Difference]: Without dead ends: 2181 [2024-11-24 00:10:20,690 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 [2024-11-24 00:10:20,690 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 653 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:20,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 131 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-24 00:10:20,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-24 00:10:20,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.515137614678899) internal successors, (3303), 2180 states have internal predecessors, (3303), 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) [2024-11-24 00:10:20,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3303 transitions. [2024-11-24 00:10:20,750 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3303 transitions. Word has length 95 [2024-11-24 00:10:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:20,750 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3303 transitions. [2024-11-24 00:10:20,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:10:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3303 transitions. [2024-11-24 00:10:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:10:20,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:20,752 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:20,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:10:20,752 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:20,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash -824700769, now seen corresponding path program 1 times [2024-11-24 00:10:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:20,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200584399] [2024-11-24 00:10:20,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:20,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:20,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200584399] [2024-11-24 00:10:20,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200584399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:20,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:20,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:20,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262262088] [2024-11-24 00:10:20,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:20,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:20,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:20,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:20,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:20,912 INFO L87 Difference]: Start difference. First operand 2181 states and 3303 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-24 00:10:21,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:21,109 INFO L93 Difference]: Finished difference Result 4299 states and 6540 transitions. [2024-11-24 00:10:21,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:21,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2024-11-24 00:10:21,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:21,116 INFO L225 Difference]: With dead ends: 4299 [2024-11-24 00:10:21,116 INFO L226 Difference]: Without dead ends: 2181 [2024-11-24 00:10:21,119 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 [2024-11-24 00:10:21,119 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 601 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:21,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 163 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-24 00:10:21,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-24 00:10:21,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5009174311926605) internal successors, (3272), 2180 states have internal predecessors, (3272), 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) [2024-11-24 00:10:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3272 transitions. [2024-11-24 00:10:21,180 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3272 transitions. Word has length 96 [2024-11-24 00:10:21,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:21,180 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3272 transitions. [2024-11-24 00:10:21,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-24 00:10:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3272 transitions. [2024-11-24 00:10:21,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:10:21,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:21,182 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:21,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:10:21,182 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:21,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:21,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1248287654, now seen corresponding path program 1 times [2024-11-24 00:10:21,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:21,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178676168] [2024-11-24 00:10:21,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:21,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:21,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178676168] [2024-11-24 00:10:21,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178676168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:21,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:21,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:21,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55084142] [2024-11-24 00:10:21,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:21,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:21,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:21,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:21,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:21,357 INFO L87 Difference]: Start difference. First operand 2181 states and 3272 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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) [2024-11-24 00:10:21,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:21,550 INFO L93 Difference]: Finished difference Result 4303 states and 6483 transitions. [2024-11-24 00:10:21,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:21,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 [2024-11-24 00:10:21,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:21,557 INFO L225 Difference]: With dead ends: 4303 [2024-11-24 00:10:21,557 INFO L226 Difference]: Without dead ends: 2181 [2024-11-24 00:10:21,559 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 [2024-11-24 00:10:21,560 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 606 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:21,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 155 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:21,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-24 00:10:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-24 00:10:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.486697247706422) internal successors, (3241), 2180 states have internal predecessors, (3241), 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) [2024-11-24 00:10:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3241 transitions. [2024-11-24 00:10:21,653 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3241 transitions. Word has length 97 [2024-11-24 00:10:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:21,653 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3241 transitions. [2024-11-24 00:10:21,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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) [2024-11-24 00:10:21,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3241 transitions. [2024-11-24 00:10:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:10:21,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:21,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:21,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:10:21,655 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:21,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:21,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1071880717, now seen corresponding path program 1 times [2024-11-24 00:10:21,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:21,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480358399] [2024-11-24 00:10:21,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480358399] [2024-11-24 00:10:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480358399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:21,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386865438] [2024-11-24 00:10:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:21,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:21,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:21,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:21,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:21,809 INFO L87 Difference]: Start difference. First operand 2181 states and 3241 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-24 00:10:21,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:21,997 INFO L93 Difference]: Finished difference Result 4307 states and 6426 transitions. [2024-11-24 00:10:21,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:21,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2024-11-24 00:10:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:22,004 INFO L225 Difference]: With dead ends: 4307 [2024-11-24 00:10:22,004 INFO L226 Difference]: Without dead ends: 2181 [2024-11-24 00:10:22,006 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 [2024-11-24 00:10:22,007 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 611 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:22,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 147 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-24 00:10:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-24 00:10:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4724770642201834) internal successors, (3210), 2180 states have internal predecessors, (3210), 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) [2024-11-24 00:10:22,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3210 transitions. [2024-11-24 00:10:22,053 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3210 transitions. Word has length 98 [2024-11-24 00:10:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:22,053 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3210 transitions. [2024-11-24 00:10:22,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-24 00:10:22,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3210 transitions. [2024-11-24 00:10:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:10:22,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:22,055 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:22,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:10:22,055 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:22,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:22,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2092778770, now seen corresponding path program 1 times [2024-11-24 00:10:22,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:22,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97725294] [2024-11-24 00:10:22,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:22,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:22,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:22,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97725294] [2024-11-24 00:10:22,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97725294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:22,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:22,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:22,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115977246] [2024-11-24 00:10:22,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:22,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:22,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:22,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:22,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:22,200 INFO L87 Difference]: Start difference. First operand 2181 states and 3210 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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) [2024-11-24 00:10:22,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:22,389 INFO L93 Difference]: Finished difference Result 4295 states and 6352 transitions. [2024-11-24 00:10:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:22,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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 [2024-11-24 00:10:22,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:22,396 INFO L225 Difference]: With dead ends: 4295 [2024-11-24 00:10:22,396 INFO L226 Difference]: Without dead ends: 2181 [2024-11-24 00:10:22,398 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 [2024-11-24 00:10:22,399 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 569 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:22,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 171 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-24 00:10:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-24 00:10:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4582568807339449) internal successors, (3179), 2180 states have internal predecessors, (3179), 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) [2024-11-24 00:10:22,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3179 transitions. [2024-11-24 00:10:22,461 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3179 transitions. Word has length 99 [2024-11-24 00:10:22,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:22,461 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3179 transitions. [2024-11-24 00:10:22,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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) [2024-11-24 00:10:22,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3179 transitions. [2024-11-24 00:10:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:10:22,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:22,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:22,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:10:22,467 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:22,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:22,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1190401161, now seen corresponding path program 1 times [2024-11-24 00:10:22,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:22,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58576578] [2024-11-24 00:10:22,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:23,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:23,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58576578] [2024-11-24 00:10:23,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58576578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:23,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:23,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:10:23,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537765439] [2024-11-24 00:10:23,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:23,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:10:23,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:23,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:10:23,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:23,496 INFO L87 Difference]: Start difference. First operand 2181 states and 3179 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 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) [2024-11-24 00:10:24,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:24,644 INFO L93 Difference]: Finished difference Result 6290 states and 9185 transitions. [2024-11-24 00:10:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:10:24,644 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 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 100 [2024-11-24 00:10:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:24,655 INFO L225 Difference]: With dead ends: 6290 [2024-11-24 00:10:24,655 INFO L226 Difference]: Without dead ends: 4278 [2024-11-24 00:10:24,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:10:24,660 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 783 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:24,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 675 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:10:24,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-11-24 00:10:24,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 2181. [2024-11-24 00:10:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4555045871559633) internal successors, (3173), 2180 states have internal predecessors, (3173), 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) [2024-11-24 00:10:24,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3173 transitions. [2024-11-24 00:10:24,738 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3173 transitions. Word has length 100 [2024-11-24 00:10:24,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:24,738 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3173 transitions. [2024-11-24 00:10:24,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 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) [2024-11-24 00:10:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3173 transitions. [2024-11-24 00:10:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:10:24,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:24,740 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:24,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:10:24,740 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:24,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:24,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1807427751, now seen corresponding path program 1 times [2024-11-24 00:10:24,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:24,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912927750] [2024-11-24 00:10:24,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:25,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:25,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912927750] [2024-11-24 00:10:25,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912927750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:25,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:25,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:10:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925380838] [2024-11-24 00:10:25,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:25,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:10:25,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:25,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:10:25,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:25,575 INFO L87 Difference]: Start difference. First operand 2181 states and 3173 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 states have internal predecessors, (101), 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) [2024-11-24 00:10:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:26,679 INFO L93 Difference]: Finished difference Result 6365 states and 9289 transitions. [2024-11-24 00:10:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:10:26,680 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 states have internal predecessors, (101), 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 101 [2024-11-24 00:10:26,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:26,690 INFO L225 Difference]: With dead ends: 6365 [2024-11-24 00:10:26,690 INFO L226 Difference]: Without dead ends: 4308 [2024-11-24 00:10:26,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:10:26,694 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1165 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:26,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 759 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:10:26,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2024-11-24 00:10:26,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 2181. [2024-11-24 00:10:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4536697247706423) internal successors, (3169), 2180 states have internal predecessors, (3169), 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) [2024-11-24 00:10:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3169 transitions. [2024-11-24 00:10:26,761 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3169 transitions. Word has length 101 [2024-11-24 00:10:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:26,761 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3169 transitions. [2024-11-24 00:10:26,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 states have internal predecessors, (101), 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) [2024-11-24 00:10:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3169 transitions. [2024-11-24 00:10:26,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:10:26,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:26,763 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:26,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:10:26,764 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:26,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash -721716891, now seen corresponding path program 1 times [2024-11-24 00:10:26,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:26,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629375740] [2024-11-24 00:10:26,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:26,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:27,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:27,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629375740] [2024-11-24 00:10:27,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629375740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:27,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:27,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:10:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407528608] [2024-11-24 00:10:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:27,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:10:27,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:27,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:10:27,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:27,456 INFO L87 Difference]: Start difference. First operand 2181 states and 3169 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 states have internal predecessors, (101), 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) [2024-11-24 00:10:28,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:28,532 INFO L93 Difference]: Finished difference Result 6380 states and 9305 transitions. [2024-11-24 00:10:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:10:28,533 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 states have internal predecessors, (101), 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 101 [2024-11-24 00:10:28,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:28,543 INFO L225 Difference]: With dead ends: 6380 [2024-11-24 00:10:28,543 INFO L226 Difference]: Without dead ends: 4313 [2024-11-24 00:10:28,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:10:28,547 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1056 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:28,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 764 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:10:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-24 00:10:28,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 2181. [2024-11-24 00:10:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4527522935779817) internal successors, (3167), 2180 states have internal predecessors, (3167), 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) [2024-11-24 00:10:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3167 transitions. [2024-11-24 00:10:28,611 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3167 transitions. Word has length 101 [2024-11-24 00:10:28,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:28,612 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3167 transitions. [2024-11-24 00:10:28,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 12 states have internal predecessors, (101), 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) [2024-11-24 00:10:28,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3167 transitions. [2024-11-24 00:10:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:10:28,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:28,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:28,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:10:28,614 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:28,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:28,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1570910188, now seen corresponding path program 1 times [2024-11-24 00:10:28,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:28,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542227590] [2024-11-24 00:10:28,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:28,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:29,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:29,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542227590] [2024-11-24 00:10:29,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542227590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:29,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:29,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164523253] [2024-11-24 00:10:29,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:29,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:10:29,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:29,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:10:29,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:10:29,121 INFO L87 Difference]: Start difference. First operand 2181 states and 3167 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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) [2024-11-24 00:10:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:29,739 INFO L93 Difference]: Finished difference Result 6235 states and 9113 transitions. [2024-11-24 00:10:29,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:10:29,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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 102 [2024-11-24 00:10:29,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:29,749 INFO L225 Difference]: With dead ends: 6235 [2024-11-24 00:10:29,750 INFO L226 Difference]: Without dead ends: 4163 [2024-11-24 00:10:29,753 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 [2024-11-24 00:10:29,754 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 770 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:29,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 546 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:10:29,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2024-11-24 00:10:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 2181. [2024-11-24 00:10:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4522935779816515) internal successors, (3166), 2180 states have internal predecessors, (3166), 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) [2024-11-24 00:10:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3166 transitions. [2024-11-24 00:10:29,827 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3166 transitions. Word has length 102 [2024-11-24 00:10:29,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:29,828 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3166 transitions. [2024-11-24 00:10:29,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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) [2024-11-24 00:10:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3166 transitions. [2024-11-24 00:10:29,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:10:29,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:29,830 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:29,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:10:29,830 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:29,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:29,831 INFO L85 PathProgramCache]: Analyzing trace with hash 755224923, now seen corresponding path program 1 times [2024-11-24 00:10:29,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:29,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106776069] [2024-11-24 00:10:29,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:29,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:30,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:30,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:30,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106776069] [2024-11-24 00:10:30,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106776069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:30,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:30,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:10:30,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090385221] [2024-11-24 00:10:30,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:30,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:10:30,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:30,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:10:30,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:10:30,466 INFO L87 Difference]: Start difference. First operand 2181 states and 3166 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-24 00:10:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:31,594 INFO L93 Difference]: Finished difference Result 6335 states and 9234 transitions. [2024-11-24 00:10:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:10:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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 103 [2024-11-24 00:10:31,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:31,605 INFO L225 Difference]: With dead ends: 6335 [2024-11-24 00:10:31,606 INFO L226 Difference]: Without dead ends: 4298 [2024-11-24 00:10:31,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:10:31,611 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 810 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:31,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 942 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:10:31,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2024-11-24 00:10:31,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 2181. [2024-11-24 00:10:31,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.45) internal successors, (3161), 2180 states have internal predecessors, (3161), 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) [2024-11-24 00:10:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3161 transitions. [2024-11-24 00:10:31,684 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3161 transitions. Word has length 103 [2024-11-24 00:10:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:31,684 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3161 transitions. [2024-11-24 00:10:31,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-24 00:10:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3161 transitions. [2024-11-24 00:10:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:10:31,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:31,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:31,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:10:31,687 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:31,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:31,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1394810664, now seen corresponding path program 1 times [2024-11-24 00:10:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:31,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175899764] [2024-11-24 00:10:31,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:32,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:32,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175899764] [2024-11-24 00:10:32,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175899764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:32,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:32,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:10:32,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415215312] [2024-11-24 00:10:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:32,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:10:32,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:32,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:10:32,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:32,768 INFO L87 Difference]: Start difference. First operand 2181 states and 3161 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 12 states have internal predecessors, (104), 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) [2024-11-24 00:10:34,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:34,334 INFO L93 Difference]: Finished difference Result 11328 states and 16379 transitions. [2024-11-24 00:10:34,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:10:34,335 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 12 states have internal predecessors, (104), 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 104 [2024-11-24 00:10:34,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:34,354 INFO L225 Difference]: With dead ends: 11328 [2024-11-24 00:10:34,354 INFO L226 Difference]: Without dead ends: 9346 [2024-11-24 00:10:34,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:10:34,359 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 2481 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:34,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 817 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:10:34,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2024-11-24 00:10:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 2199. [2024-11-24 00:10:34,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 2198 states have (on average 1.4458598726114649) internal successors, (3178), 2198 states have internal predecessors, (3178), 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) [2024-11-24 00:10:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 3178 transitions. [2024-11-24 00:10:34,464 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 3178 transitions. Word has length 104 [2024-11-24 00:10:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:34,464 INFO L471 AbstractCegarLoop]: Abstraction has 2199 states and 3178 transitions. [2024-11-24 00:10:34,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 12 states have internal predecessors, (104), 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) [2024-11-24 00:10:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 3178 transitions. [2024-11-24 00:10:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:10:34,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:34,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:34,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:10:34,467 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:34,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:34,468 INFO L85 PathProgramCache]: Analyzing trace with hash -294873708, now seen corresponding path program 1 times [2024-11-24 00:10:34,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:34,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863945134] [2024-11-24 00:10:34,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:34,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:34,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:34,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863945134] [2024-11-24 00:10:34,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863945134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:34,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:34,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:10:34,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156929388] [2024-11-24 00:10:34,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:34,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:10:34,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:34,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:10:34,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:10:34,989 INFO L87 Difference]: Start difference. First operand 2199 states and 3178 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 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) [2024-11-24 00:10:35,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:35,871 INFO L93 Difference]: Finished difference Result 6237 states and 9074 transitions. [2024-11-24 00:10:35,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:10:35,872 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 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 105 [2024-11-24 00:10:35,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:35,881 INFO L225 Difference]: With dead ends: 6237 [2024-11-24 00:10:35,882 INFO L226 Difference]: Without dead ends: 4256 [2024-11-24 00:10:35,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:10:35,887 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 675 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:35,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1054 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:10:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2024-11-24 00:10:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 2181. [2024-11-24 00:10:35,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.4467889908256881) internal successors, (3154), 2180 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) [2024-11-24 00:10:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3154 transitions. [2024-11-24 00:10:35,937 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3154 transitions. Word has length 105 [2024-11-24 00:10:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:35,937 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3154 transitions. [2024-11-24 00:10:35,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 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) [2024-11-24 00:10:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3154 transitions. [2024-11-24 00:10:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:10:35,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:35,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:35,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:10:35,939 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:35,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:35,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1475383422, now seen corresponding path program 1 times [2024-11-24 00:10:35,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:35,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503318542] [2024-11-24 00:10:35,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:35,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:37,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:37,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503318542] [2024-11-24 00:10:37,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503318542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:37,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:10:37,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786466434] [2024-11-24 00:10:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:37,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:10:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:37,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:10:37,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:10:37,079 INFO L87 Difference]: Start difference. First operand 2181 states and 3154 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-24 00:10:38,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:38,769 INFO L93 Difference]: Finished difference Result 8879 states and 12958 transitions. [2024-11-24 00:10:38,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:10:38,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 105 [2024-11-24 00:10:38,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:38,790 INFO L225 Difference]: With dead ends: 8879 [2024-11-24 00:10:38,790 INFO L226 Difference]: Without dead ends: 8309 [2024-11-24 00:10:38,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:10:38,795 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 816 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:38,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 5621 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:10:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2024-11-24 00:10:38,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 2155. [2024-11-24 00:10:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.44661095636026) internal successors, (3116), 2154 states have internal predecessors, (3116), 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) [2024-11-24 00:10:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3116 transitions. [2024-11-24 00:10:38,878 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3116 transitions. Word has length 105 [2024-11-24 00:10:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:38,879 INFO L471 AbstractCegarLoop]: Abstraction has 2155 states and 3116 transitions. [2024-11-24 00:10:38,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-24 00:10:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3116 transitions. [2024-11-24 00:10:38,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:10:38,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:38,881 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:38,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:10:38,881 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:38,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:38,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1499355903, now seen corresponding path program 1 times [2024-11-24 00:10:38,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:38,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487553655] [2024-11-24 00:10:38,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:38,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:40,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:40,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487553655] [2024-11-24 00:10:40,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487553655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:40,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:40,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:10:40,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446854209] [2024-11-24 00:10:40,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:40,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:10:40,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:40,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:10:40,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:10:40,017 INFO L87 Difference]: Start difference. First operand 2155 states and 3116 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-24 00:10:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:41,366 INFO L93 Difference]: Finished difference Result 8750 states and 12777 transitions. [2024-11-24 00:10:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:10:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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 105 [2024-11-24 00:10:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:41,383 INFO L225 Difference]: With dead ends: 8750 [2024-11-24 00:10:41,383 INFO L226 Difference]: Without dead ends: 8200 [2024-11-24 00:10:41,386 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 [2024-11-24 00:10:41,387 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 1148 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:41,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 4572 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:10:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2024-11-24 00:10:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 2144. [2024-11-24 00:10:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2144 states, 2143 states have (on average 1.4451703219785348) internal successors, (3097), 2143 states have internal predecessors, (3097), 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) [2024-11-24 00:10:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 3097 transitions. [2024-11-24 00:10:41,520 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 3097 transitions. Word has length 105 [2024-11-24 00:10:41,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:41,520 INFO L471 AbstractCegarLoop]: Abstraction has 2144 states and 3097 transitions. [2024-11-24 00:10:41,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-11-24 00:10:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 3097 transitions. [2024-11-24 00:10:41,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:10:41,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:41,522 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:41,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:10:41,523 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:41,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:41,524 INFO L85 PathProgramCache]: Analyzing trace with hash -285463969, now seen corresponding path program 1 times [2024-11-24 00:10:41,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:41,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3207503] [2024-11-24 00:10:41,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:42,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:42,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3207503] [2024-11-24 00:10:42,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3207503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:42,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:42,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:10:42,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436310420] [2024-11-24 00:10:42,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:42,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:10:42,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:42,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:10:42,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:42,406 INFO L87 Difference]: Start difference. First operand 2144 states and 3097 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 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) [2024-11-24 00:10:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:43,259 INFO L93 Difference]: Finished difference Result 4672 states and 6803 transitions. [2024-11-24 00:10:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:10:43,259 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 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 105 [2024-11-24 00:10:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:43,268 INFO L225 Difference]: With dead ends: 4672 [2024-11-24 00:10:43,268 INFO L226 Difference]: Without dead ends: 4142 [2024-11-24 00:10:43,270 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 [2024-11-24 00:10:43,270 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 1112 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:43,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 1316 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:10:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2024-11-24 00:10:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 2143. [2024-11-24 00:10:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 2142 states have (on average 1.4430438842203548) internal successors, (3091), 2142 states have internal predecessors, (3091), 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) [2024-11-24 00:10:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 3091 transitions. [2024-11-24 00:10:43,314 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 3091 transitions. Word has length 105 [2024-11-24 00:10:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:43,314 INFO L471 AbstractCegarLoop]: Abstraction has 2143 states and 3091 transitions. [2024-11-24 00:10:43,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 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) [2024-11-24 00:10:43,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 3091 transitions. [2024-11-24 00:10:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:10:43,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:43,316 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:43,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:10:43,316 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:43,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash -344221858, now seen corresponding path program 1 times [2024-11-24 00:10:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140949694] [2024-11-24 00:10:43,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:44,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:44,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:44,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140949694] [2024-11-24 00:10:44,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140949694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:44,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:44,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:10:44,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631633350] [2024-11-24 00:10:44,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:44,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:10:44,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:44,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:10:44,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:44,161 INFO L87 Difference]: Start difference. First operand 2143 states and 3091 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 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) [2024-11-24 00:10:45,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:45,193 INFO L93 Difference]: Finished difference Result 4706 states and 6839 transitions. [2024-11-24 00:10:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:10:45,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 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 105 [2024-11-24 00:10:45,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:45,203 INFO L225 Difference]: With dead ends: 4706 [2024-11-24 00:10:45,203 INFO L226 Difference]: Without dead ends: 4146 [2024-11-24 00:10:45,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:10:45,206 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 803 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:45,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2147 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4146 states. [2024-11-24 00:10:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4146 to 2117. [2024-11-24 00:10:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.444234404536862) internal successors, (3056), 2116 states have internal predecessors, (3056), 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) [2024-11-24 00:10:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3056 transitions. [2024-11-24 00:10:45,255 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3056 transitions. Word has length 105 [2024-11-24 00:10:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:45,256 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 3056 transitions. [2024-11-24 00:10:45,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 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) [2024-11-24 00:10:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3056 transitions. [2024-11-24 00:10:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:10:45,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:45,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:45,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:10:45,257 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:45,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash 716052892, now seen corresponding path program 1 times [2024-11-24 00:10:45,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:45,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449476272] [2024-11-24 00:10:45,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:45,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:46,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:46,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449476272] [2024-11-24 00:10:46,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449476272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:46,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:46,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:10:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914652323] [2024-11-24 00:10:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:46,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:10:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:46,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:10:46,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:10:46,153 INFO L87 Difference]: Start difference. First operand 2117 states and 3056 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 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) [2024-11-24 00:10:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:47,220 INFO L93 Difference]: Finished difference Result 8606 states and 12568 transitions. [2024-11-24 00:10:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:10:47,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 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 105 [2024-11-24 00:10:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:47,238 INFO L225 Difference]: With dead ends: 8606 [2024-11-24 00:10:47,238 INFO L226 Difference]: Without dead ends: 8046 [2024-11-24 00:10:47,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:10:47,242 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 1020 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:47,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2931 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:10:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8046 states. [2024-11-24 00:10:47,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8046 to 2085. [2024-11-24 00:10:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.4472168905950096) internal successors, (3016), 2084 states have internal predecessors, (3016), 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) [2024-11-24 00:10:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3016 transitions. [2024-11-24 00:10:47,319 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3016 transitions. Word has length 105 [2024-11-24 00:10:47,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:47,319 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 3016 transitions. [2024-11-24 00:10:47,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 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) [2024-11-24 00:10:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3016 transitions. [2024-11-24 00:10:47,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:10:47,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:47,320 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:47,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:10:47,321 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:47,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:47,321 INFO L85 PathProgramCache]: Analyzing trace with hash 392357586, now seen corresponding path program 1 times [2024-11-24 00:10:47,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:47,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254410803] [2024-11-24 00:10:47,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:47,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:10:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254410803] [2024-11-24 00:10:51,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254410803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:51,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:51,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2024-11-24 00:10:51,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490969194] [2024-11-24 00:10:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:51,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-24 00:10:51,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:51,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-24 00:10:51,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1255, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:10:51,381 INFO L87 Difference]: Start difference. First operand 2085 states and 3016 transitions. Second operand has 37 states, 37 states have (on average 2.864864864864865) internal successors, (106), 37 states have internal predecessors, (106), 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) [2024-11-24 00:11:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:04,913 INFO L93 Difference]: Finished difference Result 16043 states and 23464 transitions. [2024-11-24 00:11:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-24 00:11:04,914 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.864864864864865) internal successors, (106), 37 states have internal predecessors, (106), 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 106 [2024-11-24 00:11:04,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:04,937 INFO L225 Difference]: With dead ends: 16043 [2024-11-24 00:11:04,937 INFO L226 Difference]: Without dead ends: 14066 [2024-11-24 00:11:04,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=640, Invalid=4190, Unknown=0, NotChecked=0, Total=4830 [2024-11-24 00:11:04,943 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 1913 mSDsluCounter, 14690 mSDsCounter, 0 mSdLazyCounter, 9748 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 15338 SdHoareTripleChecker+Invalid, 9764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 9748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:04,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 15338 Invalid, 9764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 9748 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-24 00:11:04,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14066 states. [2024-11-24 00:11:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14066 to 2110. [2024-11-24 00:11:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2110 states, 2109 states have (on average 1.4442863916548128) internal successors, (3046), 2109 states have internal predecessors, (3046), 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) [2024-11-24 00:11:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 3046 transitions. [2024-11-24 00:11:05,055 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 3046 transitions. Word has length 106 [2024-11-24 00:11:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:05,055 INFO L471 AbstractCegarLoop]: Abstraction has 2110 states and 3046 transitions. [2024-11-24 00:11:05,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.864864864864865) internal successors, (106), 37 states have internal predecessors, (106), 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) [2024-11-24 00:11:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 3046 transitions. [2024-11-24 00:11:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:11:05,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:05,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:05,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:11:05,057 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:05,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -835958753, now seen corresponding path program 1 times [2024-11-24 00:11:05,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:05,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310129801] [2024-11-24 00:11:05,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:05,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:05,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:05,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:05,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310129801] [2024-11-24 00:11:05,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310129801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:05,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:05,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:11:05,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985646296] [2024-11-24 00:11:05,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:05,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:11:05,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:05,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:11:05,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:11:05,925 INFO L87 Difference]: Start difference. First operand 2110 states and 3046 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 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) [2024-11-24 00:11:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:07,295 INFO L93 Difference]: Finished difference Result 8586 states and 12543 transitions. [2024-11-24 00:11:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:11:07,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 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 107 [2024-11-24 00:11:07,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:07,309 INFO L225 Difference]: With dead ends: 8586 [2024-11-24 00:11:07,310 INFO L226 Difference]: Without dead ends: 8048 [2024-11-24 00:11:07,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:11:07,314 INFO L435 NwaCegarLoop]: 497 mSDtfsCounter, 752 mSDsluCounter, 3855 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 4352 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:07,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 4352 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:11:07,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2024-11-24 00:11:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 2099. [2024-11-24 00:11:07,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2098 states have (on average 1.4451858913250715) internal successors, (3032), 2098 states have internal predecessors, (3032), 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) [2024-11-24 00:11:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 3032 transitions. [2024-11-24 00:11:07,383 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 3032 transitions. Word has length 107 [2024-11-24 00:11:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:07,383 INFO L471 AbstractCegarLoop]: Abstraction has 2099 states and 3032 transitions. [2024-11-24 00:11:07,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 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) [2024-11-24 00:11:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 3032 transitions. [2024-11-24 00:11:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:11:07,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:07,385 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:07,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:11:07,385 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:07,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash -246539873, now seen corresponding path program 1 times [2024-11-24 00:11:07,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:07,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394219502] [2024-11-24 00:11:07,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:07,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:07,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394219502] [2024-11-24 00:11:07,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394219502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:07,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:07,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:11:07,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814616892] [2024-11-24 00:11:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:07,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:11:07,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:07,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:11:07,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:11:07,675 INFO L87 Difference]: Start difference. First operand 2099 states and 3032 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-24 00:11:07,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:07,714 INFO L93 Difference]: Finished difference Result 2115 states and 3054 transitions. [2024-11-24 00:11:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:11:07,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 107 [2024-11-24 00:11:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:07,718 INFO L225 Difference]: With dead ends: 2115 [2024-11-24 00:11:07,718 INFO L226 Difference]: Without dead ends: 2113 [2024-11-24 00:11:07,719 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 [2024-11-24 00:11:07,720 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 837 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 [2024-11-24 00:11:07,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 837 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-11-24 00:11:07,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2113. [2024-11-24 00:11:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2113 states, 2112 states have (on average 1.4384469696969697) internal successors, (3038), 2112 states have internal predecessors, (3038), 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) [2024-11-24 00:11:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2113 states to 2113 states and 3038 transitions. [2024-11-24 00:11:07,749 INFO L78 Accepts]: Start accepts. Automaton has 2113 states and 3038 transitions. Word has length 107 [2024-11-24 00:11:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:07,749 INFO L471 AbstractCegarLoop]: Abstraction has 2113 states and 3038 transitions. [2024-11-24 00:11:07,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-24 00:11:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states and 3038 transitions. [2024-11-24 00:11:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:11:07,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:07,750 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:07,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:11:07,751 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:07,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1041143963, now seen corresponding path program 1 times [2024-11-24 00:11:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:07,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389252510] [2024-11-24 00:11:07,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:07,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:07,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389252510] [2024-11-24 00:11:07,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389252510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:07,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:07,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:11:07,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845618537] [2024-11-24 00:11:07,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:07,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:11:07,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:07,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:11:07,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:07,917 INFO L87 Difference]: Start difference. First operand 2113 states and 3038 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-24 00:11:07,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:07,956 INFO L93 Difference]: Finished difference Result 4930 states and 7153 transitions. [2024-11-24 00:11:07,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:11:07,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 107 [2024-11-24 00:11:07,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:07,962 INFO L225 Difference]: With dead ends: 4930 [2024-11-24 00:11:07,962 INFO L226 Difference]: Without dead ends: 2941 [2024-11-24 00:11:07,964 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 [2024-11-24 00:11:07,965 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 103 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 518 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 [2024-11-24 00:11:07,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 518 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:07,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2024-11-24 00:11:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2939. [2024-11-24 00:11:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 1.439074200136147) internal successors, (4228), 2938 states have internal predecessors, (4228), 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) [2024-11-24 00:11:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 4228 transitions. [2024-11-24 00:11:08,007 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 4228 transitions. Word has length 107 [2024-11-24 00:11:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:08,008 INFO L471 AbstractCegarLoop]: Abstraction has 2939 states and 4228 transitions. [2024-11-24 00:11:08,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-24 00:11:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 4228 transitions. [2024-11-24 00:11:08,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 00:11:08,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:08,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:08,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:11:08,010 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:08,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:08,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1624576542, now seen corresponding path program 1 times [2024-11-24 00:11:08,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:08,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854087633] [2024-11-24 00:11:08,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:08,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:08,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:08,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854087633] [2024-11-24 00:11:08,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854087633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:08,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:08,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537043065] [2024-11-24 00:11:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:08,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:08,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:08,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:08,161 INFO L87 Difference]: Start difference. First operand 2939 states and 4228 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-11-24 00:11:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:08,201 INFO L93 Difference]: Finished difference Result 6060 states and 8760 transitions. [2024-11-24 00:11:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 139 [2024-11-24 00:11:08,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:08,208 INFO L225 Difference]: With dead ends: 6060 [2024-11-24 00:11:08,209 INFO L226 Difference]: Without dead ends: 4071 [2024-11-24 00:11:08,211 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 [2024-11-24 00:11:08,212 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 98 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 470 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 [2024-11-24 00:11:08,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 470 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2024-11-24 00:11:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 3945. [2024-11-24 00:11:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3944 states have (on average 1.4373732251521298) internal successors, (5669), 3944 states have internal predecessors, (5669), 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) [2024-11-24 00:11:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5669 transitions. [2024-11-24 00:11:08,273 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5669 transitions. Word has length 139 [2024-11-24 00:11:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:08,274 INFO L471 AbstractCegarLoop]: Abstraction has 3945 states and 5669 transitions. [2024-11-24 00:11:08,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-11-24 00:11:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5669 transitions. [2024-11-24 00:11:08,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:11:08,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:08,275 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:08,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:11:08,276 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:08,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:08,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1544847095, now seen corresponding path program 1 times [2024-11-24 00:11:08,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:08,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676491201] [2024-11-24 00:11:08,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:08,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:08,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:08,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676491201] [2024-11-24 00:11:08,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676491201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:08,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:08,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111938328] [2024-11-24 00:11:08,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:08,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:11:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:08,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:11:08,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:08,481 INFO L87 Difference]: Start difference. First operand 3945 states and 5669 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:08,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:08,859 INFO L93 Difference]: Finished difference Result 10598 states and 15381 transitions. [2024-11-24 00:11:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:11:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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 141 [2024-11-24 00:11:08,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:08,866 INFO L225 Difference]: With dead ends: 10598 [2024-11-24 00:11:08,866 INFO L226 Difference]: Without dead ends: 6786 [2024-11-24 00:11:08,870 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 [2024-11-24 00:11:08,870 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 1037 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:08,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 499 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2024-11-24 00:11:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 4224. [2024-11-24 00:11:08,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4224 states, 4223 states have (on average 1.4304996448022733) internal successors, (6041), 4223 states have internal predecessors, (6041), 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) [2024-11-24 00:11:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4224 states to 4224 states and 6041 transitions. [2024-11-24 00:11:08,939 INFO L78 Accepts]: Start accepts. Automaton has 4224 states and 6041 transitions. Word has length 141 [2024-11-24 00:11:08,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:08,940 INFO L471 AbstractCegarLoop]: Abstraction has 4224 states and 6041 transitions. [2024-11-24 00:11:08,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 4224 states and 6041 transitions. [2024-11-24 00:11:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:11:08,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:08,941 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:08,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:11:08,941 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:08,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1628702113, now seen corresponding path program 1 times [2024-11-24 00:11:08,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:08,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286629692] [2024-11-24 00:11:08,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:08,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:09,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:09,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286629692] [2024-11-24 00:11:09,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286629692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:09,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:09,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113204147] [2024-11-24 00:11:09,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:09,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:11:09,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:09,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:11:09,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:09,118 INFO L87 Difference]: Start difference. First operand 4224 states and 6041 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:09,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:09,528 INFO L93 Difference]: Finished difference Result 14824 states and 21409 transitions. [2024-11-24 00:11:09,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:11:09,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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 141 [2024-11-24 00:11:09,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:09,540 INFO L225 Difference]: With dead ends: 14824 [2024-11-24 00:11:09,540 INFO L226 Difference]: Without dead ends: 10742 [2024-11-24 00:11:09,545 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 [2024-11-24 00:11:09,546 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1058 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:09,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 411 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2024-11-24 00:11:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8884. [2024-11-24 00:11:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8884 states, 8883 states have (on average 1.4339750084430936) internal successors, (12738), 8883 states have internal predecessors, (12738), 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) [2024-11-24 00:11:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8884 states to 8884 states and 12738 transitions. [2024-11-24 00:11:09,669 INFO L78 Accepts]: Start accepts. Automaton has 8884 states and 12738 transitions. Word has length 141 [2024-11-24 00:11:09,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:09,669 INFO L471 AbstractCegarLoop]: Abstraction has 8884 states and 12738 transitions. [2024-11-24 00:11:09,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:09,670 INFO L276 IsEmpty]: Start isEmpty. Operand 8884 states and 12738 transitions. [2024-11-24 00:11:09,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:11:09,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:09,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:09,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:11:09,672 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:09,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:09,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1701848944, now seen corresponding path program 1 times [2024-11-24 00:11:09,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:09,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191969699] [2024-11-24 00:11:09,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:09,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:09,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:09,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191969699] [2024-11-24 00:11:09,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191969699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:09,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:09,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:09,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018544276] [2024-11-24 00:11:09,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:09,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:11:09,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:09,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:11:09,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:09,854 INFO L87 Difference]: Start difference. First operand 8884 states and 12738 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:10,388 INFO L93 Difference]: Finished difference Result 28920 states and 41616 transitions. [2024-11-24 00:11:10,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:11:10,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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 141 [2024-11-24 00:11:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:10,415 INFO L225 Difference]: With dead ends: 28920 [2024-11-24 00:11:10,416 INFO L226 Difference]: Without dead ends: 20178 [2024-11-24 00:11:10,427 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 [2024-11-24 00:11:10,428 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 973 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:10,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 409 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:11:10,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20178 states. [2024-11-24 00:11:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20178 to 18784. [2024-11-24 00:11:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18784 states, 18783 states have (on average 1.4344886333386573) internal successors, (26944), 18783 states have internal predecessors, (26944), 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) [2024-11-24 00:11:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18784 states to 18784 states and 26944 transitions. [2024-11-24 00:11:10,697 INFO L78 Accepts]: Start accepts. Automaton has 18784 states and 26944 transitions. Word has length 141 [2024-11-24 00:11:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:10,697 INFO L471 AbstractCegarLoop]: Abstraction has 18784 states and 26944 transitions. [2024-11-24 00:11:10,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 18784 states and 26944 transitions. [2024-11-24 00:11:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:11:10,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:10,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:10,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:11:10,700 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:10,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:10,701 INFO L85 PathProgramCache]: Analyzing trace with hash 182297884, now seen corresponding path program 1 times [2024-11-24 00:11:10,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:10,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938230178] [2024-11-24 00:11:10,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:10,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:10,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938230178] [2024-11-24 00:11:10,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938230178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:10,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:10,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:10,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477832006] [2024-11-24 00:11:10,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:10,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:11:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:10,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:11:10,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:10,904 INFO L87 Difference]: Start difference. First operand 18784 states and 26944 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:11,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:11,512 INFO L93 Difference]: Finished difference Result 67668 states and 97690 transitions. [2024-11-24 00:11:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:11:11,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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 141 [2024-11-24 00:11:11,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:11,590 INFO L225 Difference]: With dead ends: 67668 [2024-11-24 00:11:11,590 INFO L226 Difference]: Without dead ends: 49026 [2024-11-24 00:11:11,615 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 [2024-11-24 00:11:11,615 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1143 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:11,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 413 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:11:11,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49026 states. [2024-11-24 00:11:12,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49026 to 39744. [2024-11-24 00:11:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39744 states, 39743 states have (on average 1.4337115970107943) internal successors, (56980), 39743 states have internal predecessors, (56980), 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) [2024-11-24 00:11:12,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39744 states to 39744 states and 56980 transitions. [2024-11-24 00:11:12,297 INFO L78 Accepts]: Start accepts. Automaton has 39744 states and 56980 transitions. Word has length 141 [2024-11-24 00:11:12,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:12,297 INFO L471 AbstractCegarLoop]: Abstraction has 39744 states and 56980 transitions. [2024-11-24 00:11:12,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:12,297 INFO L276 IsEmpty]: Start isEmpty. Operand 39744 states and 56980 transitions. [2024-11-24 00:11:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:11:12,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:12,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:12,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:11:12,300 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:12,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:12,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2146985950, now seen corresponding path program 1 times [2024-11-24 00:11:12,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:12,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280633847] [2024-11-24 00:11:12,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:12,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:12,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:12,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280633847] [2024-11-24 00:11:12,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280633847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:12,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:12,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:12,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062278181] [2024-11-24 00:11:12,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:12,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:11:12,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:12,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:11:12,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:12,694 INFO L87 Difference]: Start difference. First operand 39744 states and 56980 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:13,559 INFO L93 Difference]: Finished difference Result 149108 states and 215174 transitions. [2024-11-24 00:11:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:11:13,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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 141 [2024-11-24 00:11:13,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:13,703 INFO L225 Difference]: With dead ends: 149108 [2024-11-24 00:11:13,703 INFO L226 Difference]: Without dead ends: 109506 [2024-11-24 00:11:13,737 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 [2024-11-24 00:11:13,738 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1228 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:13,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 415 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:13,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109506 states. [2024-11-24 00:11:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109506 to 83984. [2024-11-24 00:11:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83984 states, 83983 states have (on average 1.4324327542478834) internal successors, (120300), 83983 states have internal predecessors, (120300), 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) [2024-11-24 00:11:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83984 states to 83984 states and 120300 transitions. [2024-11-24 00:11:15,363 INFO L78 Accepts]: Start accepts. Automaton has 83984 states and 120300 transitions. Word has length 141 [2024-11-24 00:11:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:15,363 INFO L471 AbstractCegarLoop]: Abstraction has 83984 states and 120300 transitions. [2024-11-24 00:11:15,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-11-24 00:11:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 83984 states and 120300 transitions. [2024-11-24 00:11:15,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-24 00:11:15,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:15,383 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:15,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 00:11:15,383 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:15,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:15,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2131140626, now seen corresponding path program 1 times [2024-11-24 00:11:15,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:15,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013380938] [2024-11-24 00:11:15,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-24 00:11:15,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:15,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013380938] [2024-11-24 00:11:15,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013380938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:15,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:15,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:15,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572997163] [2024-11-24 00:11:15,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:15,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:15,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:15,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:15,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:15,621 INFO L87 Difference]: Start difference. First operand 83984 states and 120300 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2024-11-24 00:11:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:16,259 INFO L93 Difference]: Finished difference Result 162932 states and 232990 transitions. [2024-11-24 00:11:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:16,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 172 [2024-11-24 00:11:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:16,341 INFO L225 Difference]: With dead ends: 162932 [2024-11-24 00:11:16,341 INFO L226 Difference]: Without dead ends: 79087 [2024-11-24 00:11:16,376 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 [2024-11-24 00:11:16,377 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 92 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 457 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 [2024-11-24 00:11:16,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 457 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:16,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79087 states. [2024-11-24 00:11:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79087 to 77639. [2024-11-24 00:11:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77639 states, 77638 states have (on average 1.4226023339086529) internal successors, (110448), 77638 states have internal predecessors, (110448), 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) [2024-11-24 00:11:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77639 states to 77639 states and 110448 transitions. [2024-11-24 00:11:17,542 INFO L78 Accepts]: Start accepts. Automaton has 77639 states and 110448 transitions. Word has length 172 [2024-11-24 00:11:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:17,543 INFO L471 AbstractCegarLoop]: Abstraction has 77639 states and 110448 transitions. [2024-11-24 00:11:17,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2024-11-24 00:11:17,543 INFO L276 IsEmpty]: Start isEmpty. Operand 77639 states and 110448 transitions. [2024-11-24 00:11:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-24 00:11:17,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:17,563 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:17,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:11:17,563 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:17,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1214191698, now seen corresponding path program 1 times [2024-11-24 00:11:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:17,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732769192] [2024-11-24 00:11:17,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:17,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:11:17,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:17,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732769192] [2024-11-24 00:11:17,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732769192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:17,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:17,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:17,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488046580] [2024-11-24 00:11:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:17,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:17,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:17,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:17,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:17,815 INFO L87 Difference]: Start difference. First operand 77639 states and 110448 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-24 00:11:18,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:18,501 INFO L93 Difference]: Finished difference Result 150275 states and 213330 transitions. [2024-11-24 00:11:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:18,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 173 [2024-11-24 00:11:18,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:18,581 INFO L225 Difference]: With dead ends: 150275 [2024-11-24 00:11:18,581 INFO L226 Difference]: Without dead ends: 72769 [2024-11-24 00:11:18,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:18,609 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 85 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 458 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 [2024-11-24 00:11:18,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 458 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72769 states. [2024-11-24 00:11:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72769 to 71375. [2024-11-24 00:11:19,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71375 states, 71374 states have (on average 1.410933953540505) internal successors, (100704), 71374 states have internal predecessors, (100704), 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) [2024-11-24 00:11:19,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71375 states to 71375 states and 100704 transitions. [2024-11-24 00:11:19,508 INFO L78 Accepts]: Start accepts. Automaton has 71375 states and 100704 transitions. Word has length 173 [2024-11-24 00:11:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:19,508 INFO L471 AbstractCegarLoop]: Abstraction has 71375 states and 100704 transitions. [2024-11-24 00:11:19,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-24 00:11:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 71375 states and 100704 transitions. [2024-11-24 00:11:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 00:11:19,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:19,515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:19,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:11:19,515 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:19,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash 522773387, now seen corresponding path program 1 times [2024-11-24 00:11:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:19,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602901049] [2024-11-24 00:11:19,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-24 00:11:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:19,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602901049] [2024-11-24 00:11:19,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602901049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:19,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:19,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797031652] [2024-11-24 00:11:19,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:19,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:19,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:19,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:19,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:19,966 INFO L87 Difference]: Start difference. First operand 71375 states and 100704 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-11-24 00:11:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:20,283 INFO L93 Difference]: Finished difference Result 137747 states and 193842 transitions. [2024-11-24 00:11:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:20,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 174 [2024-11-24 00:11:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:20,340 INFO L225 Difference]: With dead ends: 137747 [2024-11-24 00:11:20,340 INFO L226 Difference]: Without dead ends: 66505 [2024-11-24 00:11:20,371 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 [2024-11-24 00:11:20,371 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 78 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 459 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 [2024-11-24 00:11:20,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 459 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66505 states. [2024-11-24 00:11:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66505 to 65111. [2024-11-24 00:11:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65111 states, 65110 states have (on average 1.3970204269697435) internal successors, (90960), 65110 states have internal predecessors, (90960), 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) [2024-11-24 00:11:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65111 states to 65111 states and 90960 transitions. [2024-11-24 00:11:21,640 INFO L78 Accepts]: Start accepts. Automaton has 65111 states and 90960 transitions. Word has length 174 [2024-11-24 00:11:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:21,640 INFO L471 AbstractCegarLoop]: Abstraction has 65111 states and 90960 transitions. [2024-11-24 00:11:21,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-11-24 00:11:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 65111 states and 90960 transitions. [2024-11-24 00:11:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:11:21,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:21,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:21,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:11:21,654 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:21,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1986955949, now seen corresponding path program 1 times [2024-11-24 00:11:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:21,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705176119] [2024-11-24 00:11:21,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:21,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:11:21,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:21,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705176119] [2024-11-24 00:11:21,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705176119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:21,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:21,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:21,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425931117] [2024-11-24 00:11:21,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:21,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:21,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:21,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:21,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:21,903 INFO L87 Difference]: Start difference. First operand 65111 states and 90960 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-24 00:11:22,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:22,430 INFO L93 Difference]: Finished difference Result 125219 states and 174354 transitions. [2024-11-24 00:11:22,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:22,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 175 [2024-11-24 00:11:22,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:22,478 INFO L225 Difference]: With dead ends: 125219 [2024-11-24 00:11:22,478 INFO L226 Difference]: Without dead ends: 60241 [2024-11-24 00:11:22,505 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 [2024-11-24 00:11:22,505 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 71 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 460 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 [2024-11-24 00:11:22,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 460 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:22,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60241 states. [2024-11-24 00:11:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60241 to 58847. [2024-11-24 00:11:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58847 states, 58846 states have (on average 1.3801447846922477) internal successors, (81216), 58846 states have internal predecessors, (81216), 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) [2024-11-24 00:11:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58847 states to 58847 states and 81216 transitions. [2024-11-24 00:11:23,381 INFO L78 Accepts]: Start accepts. Automaton has 58847 states and 81216 transitions. Word has length 175 [2024-11-24 00:11:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:23,381 INFO L471 AbstractCegarLoop]: Abstraction has 58847 states and 81216 transitions. [2024-11-24 00:11:23,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-24 00:11:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 58847 states and 81216 transitions. [2024-11-24 00:11:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:11:23,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:23,385 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:23,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:11:23,385 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:23,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1846313828, now seen corresponding path program 1 times [2024-11-24 00:11:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:23,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830656866] [2024-11-24 00:11:23,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:23,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:11:23,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:23,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830656866] [2024-11-24 00:11:23,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830656866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:23,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:23,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:23,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473460083] [2024-11-24 00:11:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:23,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:11:23,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:23,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:11:23,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:11:23,527 INFO L87 Difference]: Start difference. First operand 58847 states and 81216 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2024-11-24 00:11:23,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:23,908 INFO L93 Difference]: Finished difference Result 171171 states and 235010 transitions. [2024-11-24 00:11:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:11:23,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 176 [2024-11-24 00:11:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:24,020 INFO L225 Difference]: With dead ends: 171171 [2024-11-24 00:11:24,020 INFO L226 Difference]: Without dead ends: 112457 [2024-11-24 00:11:24,055 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 [2024-11-24 00:11:24,056 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 64 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 461 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 [2024-11-24 00:11:24,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 461 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112457 states. [2024-11-24 00:11:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112457 to 105959. [2024-11-24 00:11:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105959 states, 105958 states have (on average 1.3652201815813814) internal successors, (144656), 105958 states have internal predecessors, (144656), 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) [2024-11-24 00:11:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105959 states to 105959 states and 144656 transitions. [2024-11-24 00:11:25,989 INFO L78 Accepts]: Start accepts. Automaton has 105959 states and 144656 transitions. Word has length 176 [2024-11-24 00:11:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:25,990 INFO L471 AbstractCegarLoop]: Abstraction has 105959 states and 144656 transitions. [2024-11-24 00:11:25,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2024-11-24 00:11:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 105959 states and 144656 transitions. [2024-11-24 00:11:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:11:25,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:25,997 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:25,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:11:25,997 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:25,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1494574960, now seen corresponding path program 1 times [2024-11-24 00:11:25,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:25,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705690438] [2024-11-24 00:11:25,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:25,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:26,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705690438] [2024-11-24 00:11:26,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705690438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:26,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938552520] [2024-11-24 00:11:26,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:26,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:26,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:26,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:26,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:11:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:26,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:11:26,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:29,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:32,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938552520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:32,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:32,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-24 00:11:32,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179027594] [2024-11-24 00:11:32,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:32,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 00:11:32,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:32,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 00:11:32,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:11:32,062 INFO L87 Difference]: Start difference. First operand 105959 states and 144656 transitions. Second operand has 22 states, 22 states have (on average 20.318181818181817) internal successors, (447), 21 states have internal predecessors, (447), 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) [2024-11-24 00:11:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:34,942 INFO L93 Difference]: Finished difference Result 455539 states and 622997 transitions. [2024-11-24 00:11:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:11:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 20.318181818181817) internal successors, (447), 21 states have internal predecessors, (447), 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 177 [2024-11-24 00:11:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:35,417 INFO L225 Difference]: With dead ends: 455539 [2024-11-24 00:11:35,417 INFO L226 Difference]: Without dead ends: 349713 [2024-11-24 00:11:35,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=422, Invalid=1218, Unknown=0, NotChecked=0, Total=1640 [2024-11-24 00:11:35,525 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 1454 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:35,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 1658 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:11:35,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349713 states. [2024-11-24 00:11:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349713 to 250485. [2024-11-24 00:11:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250485 states, 250484 states have (on average 1.3619792082528226) internal successors, (341154), 250484 states have internal predecessors, (341154), 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) [2024-11-24 00:11:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250485 states to 250485 states and 341154 transitions. [2024-11-24 00:11:39,930 INFO L78 Accepts]: Start accepts. Automaton has 250485 states and 341154 transitions. Word has length 177 [2024-11-24 00:11:39,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:39,930 INFO L471 AbstractCegarLoop]: Abstraction has 250485 states and 341154 transitions. [2024-11-24 00:11:39,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 20.318181818181817) internal successors, (447), 21 states have internal predecessors, (447), 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) [2024-11-24 00:11:39,931 INFO L276 IsEmpty]: Start isEmpty. Operand 250485 states and 341154 transitions. [2024-11-24 00:11:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:11:39,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:39,950 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:39,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:11:40,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:40,155 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:40,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash -231623854, now seen corresponding path program 1 times [2024-11-24 00:11:40,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:40,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627038010] [2024-11-24 00:11:40,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:40,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:41,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:41,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627038010] [2024-11-24 00:11:41,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627038010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:41,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963864492] [2024-11-24 00:11:41,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:41,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:41,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:41,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:41,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552909de-de37-4aa1-8731-5463ac38351b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:11:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:41,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:11:41,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:43,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:11:47,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963864492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:47,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:47,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-11-24 00:11:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565473776] [2024-11-24 00:11:47,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:47,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 00:11:47,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:47,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 00:11:47,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:11:47,200 INFO L87 Difference]: Start difference. First operand 250485 states and 341154 transitions. Second operand has 30 states, 30 states have (on average 16.1) internal successors, (483), 29 states have internal predecessors, (483), 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) [2024-11-24 00:12:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:07,862 INFO L93 Difference]: Finished difference Result 2096668 states and 2856423 transitions. [2024-11-24 00:12:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2024-11-24 00:12:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 16.1) internal successors, (483), 29 states have internal predecessors, (483), 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 177 [2024-11-24 00:12:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:11,523 INFO L225 Difference]: With dead ends: 2096668 [2024-11-24 00:12:11,523 INFO L226 Difference]: Without dead ends: 1846346 [2024-11-24 00:12:11,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11208 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=4171, Invalid=29135, Unknown=0, NotChecked=0, Total=33306 [2024-11-24 00:12:11,894 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 7782 mSDsluCounter, 5778 mSDsCounter, 0 mSdLazyCounter, 6741 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7782 SdHoareTripleChecker+Valid, 6155 SdHoareTripleChecker+Invalid, 6822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 6741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:11,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7782 Valid, 6155 Invalid, 6822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 6741 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-24 00:12:13,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846346 states. [2024-11-24 00:12:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846346 to 628862. [2024-11-24 00:12:29,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628862 states, 628861 states have (on average 1.3593449108785567) internal successors, (854839), 628861 states have internal predecessors, (854839), 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)