./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-78.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b22aa97f1913ae3cfccd3ac43d88bdb4353913e6f399c17cfa9647d6764d2ff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:20:02,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:20:02,421 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:20:02,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:20:02,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:20:02,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:20:02,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:20:02,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:20:02,456 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:20:02,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:20:02,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:20:02,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:20:02,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:20:02,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:20:02,458 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:20:02,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:20:02,459 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:20:02,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:20:02,460 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:20:02,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:20:02,461 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:20:02,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:20:02,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:20:02,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:20:02,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:20:02,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:20:02,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:20:02,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:20:02,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:20:02,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:20:02,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:20:02,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:20:02,465 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b22aa97f1913ae3cfccd3ac43d88bdb4353913e6f399c17cfa9647d6764d2ff [2024-11-28 02:20:02,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:20:02,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:20:02,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:20:02,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:20:02,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:20:02,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-78.i [2024-11-28 02:20:06,011 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/data/05392cc7d/15f6bb5798534897927a56659b6fc1df/FLAGa646ce19e [2024-11-28 02:20:06,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:20:06,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-78.i [2024-11-28 02:20:06,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/data/05392cc7d/15f6bb5798534897927a56659b6fc1df/FLAGa646ce19e [2024-11-28 02:20:06,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/data/05392cc7d/15f6bb5798534897927a56659b6fc1df [2024-11-28 02:20:06,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:20:06,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:20:06,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:20:06,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:20:06,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:20:06,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:20:06" (1/1) ... [2024-11-28 02:20:06,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168a4424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:06, skipping insertion in model container [2024-11-28 02:20:06,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:20:06" (1/1) ... [2024-11-28 02:20:06,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:20:06,769 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_9f85326e-6567-44dc-a0d5-236d70312b20/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-78.i[916,929] [2024-11-28 02:20:06,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:20:06,974 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:20:06,986 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_9f85326e-6567-44dc-a0d5-236d70312b20/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-78.i[916,929] [2024-11-28 02:20:07,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:20:07,111 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:20:07,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07 WrapperNode [2024-11-28 02:20:07,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:20:07,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:20:07,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:20:07,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:20:07,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,224 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 522 [2024-11-28 02:20:07,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:20:07,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:20:07,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:20:07,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:20:07,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,313 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:20:07,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,406 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:20:07,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:20:07,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:20:07,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:20:07,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (1/1) ... [2024-11-28 02:20:07,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:20:07,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:20:07,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:20:07,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:20:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:20:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:20:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:20:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:20:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:20:07,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:20:07,696 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:20:07,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:20:09,113 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-28 02:20:09,113 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:20:09,138 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:20:09,139 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:20:09,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:20:09 BoogieIcfgContainer [2024-11-28 02:20:09,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:20:09,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:20:09,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:20:09,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:20:09,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:20:06" (1/3) ... [2024-11-28 02:20:09,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444a87a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:20:09, skipping insertion in model container [2024-11-28 02:20:09,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:07" (2/3) ... [2024-11-28 02:20:09,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444a87a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:20:09, skipping insertion in model container [2024-11-28 02:20:09,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:20:09" (3/3) ... [2024-11-28 02:20:09,153 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-78.i [2024-11-28 02:20:09,171 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:20:09,174 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-78.i that has 2 procedures, 217 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:20:09,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:20:09,273 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;@60343689, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:20:09,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:20:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 160 states have (on average 1.56875) internal successors, (251), 161 states have internal predecessors, (251), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:20:09,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 02:20:09,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:09,313 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:09,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:09,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:09,321 INFO L85 PathProgramCache]: Analyzing trace with hash 170346694, now seen corresponding path program 1 times [2024-11-28 02:20:09,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:09,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610459338] [2024-11-28 02:20:09,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:09,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2024-11-28 02:20:10,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:10,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610459338] [2024-11-28 02:20:10,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610459338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:20:10,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788297377] [2024-11-28 02:20:10,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:10,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:20:10,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:20:10,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:20:10,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:20:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:10,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:20:10,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:20:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2024-11-28 02:20:10,654 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:20:10,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788297377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:10,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:20:10,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:20:10,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023541090] [2024-11-28 02:20:10,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:10,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:20:10,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:10,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:20:10,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:20:10,691 INFO L87 Difference]: Start difference. First operand has 217 states, 160 states have (on average 1.56875) internal successors, (251), 161 states have internal predecessors, (251), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:20:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:10,751 INFO L93 Difference]: Finished difference Result 427 states and 766 transitions. [2024-11-28 02:20:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:20:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) Word has length 364 [2024-11-28 02:20:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:10,764 INFO L225 Difference]: With dead ends: 427 [2024-11-28 02:20:10,764 INFO L226 Difference]: Without dead ends: 213 [2024-11-28 02:20:10,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:20:10,771 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:10,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:20:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-28 02:20:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-28 02:20:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 157 states have (on average 1.5541401273885351) internal successors, (244), 157 states have internal predecessors, (244), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:20:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 352 transitions. [2024-11-28 02:20:10,869 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 352 transitions. Word has length 364 [2024-11-28 02:20:10,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:10,870 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 352 transitions. [2024-11-28 02:20:10,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:20:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 352 transitions. [2024-11-28 02:20:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 02:20:10,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:10,891 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:10,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:20:11,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:20:11,093 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:11,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:11,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1472724902, now seen corresponding path program 1 times [2024-11-28 02:20:11,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:11,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412624959] [2024-11-28 02:20:11,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:11,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:11,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:11,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412624959] [2024-11-28 02:20:11,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412624959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:11,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:11,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:20:11,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325052025] [2024-11-28 02:20:11,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:11,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:20:11,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:11,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:20:11,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:11,860 INFO L87 Difference]: Start difference. First operand 213 states and 352 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:12,018 INFO L93 Difference]: Finished difference Result 583 states and 965 transitions. [2024-11-28 02:20:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:20:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 364 [2024-11-28 02:20:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:12,026 INFO L225 Difference]: With dead ends: 583 [2024-11-28 02:20:12,027 INFO L226 Difference]: Without dead ends: 373 [2024-11-28 02:20:12,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:12,031 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 250 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:12,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 763 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:20:12,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-28 02:20:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 370. [2024-11-28 02:20:12,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 281 states have (on average 1.5480427046263345) internal successors, (435), 282 states have internal predecessors, (435), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 02:20:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 607 transitions. [2024-11-28 02:20:12,111 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 607 transitions. Word has length 364 [2024-11-28 02:20:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:12,114 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 607 transitions. [2024-11-28 02:20:12,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 607 transitions. [2024-11-28 02:20:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 02:20:12,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:12,126 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:12,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:20:12,126 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:12,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2120642520, now seen corresponding path program 1 times [2024-11-28 02:20:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:12,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5870755] [2024-11-28 02:20:12,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:12,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:12,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:12,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5870755] [2024-11-28 02:20:12,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5870755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:12,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:12,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:20:12,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845127152] [2024-11-28 02:20:12,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:12,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:20:12,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:12,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:20:12,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:12,919 INFO L87 Difference]: Start difference. First operand 370 states and 607 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:13,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:13,059 INFO L93 Difference]: Finished difference Result 740 states and 1213 transitions. [2024-11-28 02:20:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:20:13,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 364 [2024-11-28 02:20:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:13,064 INFO L225 Difference]: With dead ends: 740 [2024-11-28 02:20:13,064 INFO L226 Difference]: Without dead ends: 373 [2024-11-28 02:20:13,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:20:13,066 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 258 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:13,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1285 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:20:13,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-28 02:20:13,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 370. [2024-11-28 02:20:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 281 states have (on average 1.5444839857651245) internal successors, (434), 282 states have internal predecessors, (434), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 02:20:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 606 transitions. [2024-11-28 02:20:13,103 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 606 transitions. Word has length 364 [2024-11-28 02:20:13,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:13,105 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 606 transitions. [2024-11-28 02:20:13,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 606 transitions. [2024-11-28 02:20:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-28 02:20:13,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:13,113 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:13,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:20:13,113 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:13,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash 370418634, now seen corresponding path program 1 times [2024-11-28 02:20:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:13,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405804993] [2024-11-28 02:20:13,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:13,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405804993] [2024-11-28 02:20:13,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405804993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:13,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:13,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:20:13,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069786071] [2024-11-28 02:20:13,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:13,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:20:13,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:13,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:20:13,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:13,484 INFO L87 Difference]: Start difference. First operand 370 states and 606 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:13,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:13,587 INFO L93 Difference]: Finished difference Result 969 states and 1570 transitions. [2024-11-28 02:20:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:20:13,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 365 [2024-11-28 02:20:13,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:13,603 INFO L225 Difference]: With dead ends: 969 [2024-11-28 02:20:13,604 INFO L226 Difference]: Without dead ends: 602 [2024-11-28 02:20:13,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:13,608 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 206 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:13,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 692 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:20:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-28 02:20:13,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 599. [2024-11-28 02:20:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 427 states have (on average 1.4754098360655739) internal successors, (630), 430 states have internal predecessors, (630), 167 states have call successors, (167), 4 states have call predecessors, (167), 4 states have return successors, (167), 164 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-28 02:20:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 964 transitions. [2024-11-28 02:20:13,715 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 964 transitions. Word has length 365 [2024-11-28 02:20:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:13,718 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 964 transitions. [2024-11-28 02:20:13,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:13,719 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 964 transitions. [2024-11-28 02:20:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-28 02:20:13,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:13,729 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:13,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:20:13,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:13,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:13,730 INFO L85 PathProgramCache]: Analyzing trace with hash -139054456, now seen corresponding path program 1 times [2024-11-28 02:20:13,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:13,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761372540] [2024-11-28 02:20:13,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:13,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:14,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:14,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761372540] [2024-11-28 02:20:14,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761372540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:14,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:14,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:20:14,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701561046] [2024-11-28 02:20:14,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:14,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:20:14,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:14,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:20:14,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:14,077 INFO L87 Difference]: Start difference. First operand 599 states and 964 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:14,223 INFO L93 Difference]: Finished difference Result 1218 states and 1954 transitions. [2024-11-28 02:20:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:20:14,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 365 [2024-11-28 02:20:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:14,234 INFO L225 Difference]: With dead ends: 1218 [2024-11-28 02:20:14,234 INFO L226 Difference]: Without dead ends: 622 [2024-11-28 02:20:14,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:14,239 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 239 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:14,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 731 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:20:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-28 02:20:14,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 432. [2024-11-28 02:20:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 324 states have (on average 1.5) internal successors, (486), 325 states have internal predecessors, (486), 103 states have call successors, (103), 4 states have call predecessors, (103), 4 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 02:20:14,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 692 transitions. [2024-11-28 02:20:14,301 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 692 transitions. Word has length 365 [2024-11-28 02:20:14,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:14,302 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 692 transitions. [2024-11-28 02:20:14,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 692 transitions. [2024-11-28 02:20:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-28 02:20:14,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:14,310 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:14,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:20:14,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:14,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1725638072, now seen corresponding path program 1 times [2024-11-28 02:20:14,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:14,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472124218] [2024-11-28 02:20:14,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:14,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:14,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472124218] [2024-11-28 02:20:14,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472124218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:14,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:14,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:20:14,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632971087] [2024-11-28 02:20:14,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:14,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:20:14,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:14,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:20:14,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:14,818 INFO L87 Difference]: Start difference. First operand 432 states and 692 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:14,879 INFO L93 Difference]: Finished difference Result 861 states and 1381 transitions. [2024-11-28 02:20:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:20:14,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 365 [2024-11-28 02:20:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:14,885 INFO L225 Difference]: With dead ends: 861 [2024-11-28 02:20:14,885 INFO L226 Difference]: Without dead ends: 432 [2024-11-28 02:20:14,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:14,889 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 0 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:14,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1039 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:20:14,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-28 02:20:14,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-11-28 02:20:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 324 states have (on average 1.4938271604938271) internal successors, (484), 325 states have internal predecessors, (484), 103 states have call successors, (103), 4 states have call predecessors, (103), 4 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 02:20:14,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 690 transitions. [2024-11-28 02:20:14,938 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 690 transitions. Word has length 365 [2024-11-28 02:20:14,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:14,939 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 690 transitions. [2024-11-28 02:20:14,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:14,939 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 690 transitions. [2024-11-28 02:20:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-28 02:20:14,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:14,943 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:14,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:20:14,943 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash -461087842, now seen corresponding path program 1 times [2024-11-28 02:20:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325804306] [2024-11-28 02:20:14,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:14,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:15,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:15,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325804306] [2024-11-28 02:20:15,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325804306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:15,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:15,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:20:15,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608002704] [2024-11-28 02:20:15,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:15,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:20:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:15,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:20:15,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:15,498 INFO L87 Difference]: Start difference. First operand 432 states and 690 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:15,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:15,600 INFO L93 Difference]: Finished difference Result 1290 states and 2064 transitions. [2024-11-28 02:20:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:20:15,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 366 [2024-11-28 02:20:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:15,608 INFO L225 Difference]: With dead ends: 1290 [2024-11-28 02:20:15,608 INFO L226 Difference]: Without dead ends: 861 [2024-11-28 02:20:15,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:15,611 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 225 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:15,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 695 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:20:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-28 02:20:15,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 859. [2024-11-28 02:20:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 644 states have (on average 1.4906832298136645) internal successors, (960), 646 states have internal predecessors, (960), 206 states have call successors, (206), 8 states have call predecessors, (206), 8 states have return successors, (206), 204 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-28 02:20:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1372 transitions. [2024-11-28 02:20:15,732 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1372 transitions. Word has length 366 [2024-11-28 02:20:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:15,734 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1372 transitions. [2024-11-28 02:20:15,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:15,735 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1372 transitions. [2024-11-28 02:20:15,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-28 02:20:15,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:15,741 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:15,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:20:15,741 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:15,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:15,742 INFO L85 PathProgramCache]: Analyzing trace with hash -523127456, now seen corresponding path program 1 times [2024-11-28 02:20:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187913146] [2024-11-28 02:20:15,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:15,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:16,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:16,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187913146] [2024-11-28 02:20:16,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187913146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:16,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:16,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:20:16,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379595023] [2024-11-28 02:20:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:16,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:20:16,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:16,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:20:16,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:16,319 INFO L87 Difference]: Start difference. First operand 859 states and 1372 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:16,852 INFO L93 Difference]: Finished difference Result 2187 states and 3488 transitions. [2024-11-28 02:20:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:20:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 366 [2024-11-28 02:20:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:16,864 INFO L225 Difference]: With dead ends: 2187 [2024-11-28 02:20:16,864 INFO L226 Difference]: Without dead ends: 1331 [2024-11-28 02:20:16,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:20:16,868 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 363 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:16,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1010 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:20:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-28 02:20:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1269. [2024-11-28 02:20:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 997 states have (on average 1.510531594784353) internal successors, (1506), 999 states have internal predecessors, (1506), 260 states have call successors, (260), 11 states have call predecessors, (260), 11 states have return successors, (260), 258 states have call predecessors, (260), 260 states have call successors, (260) [2024-11-28 02:20:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2026 transitions. [2024-11-28 02:20:17,037 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2026 transitions. Word has length 366 [2024-11-28 02:20:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:17,038 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 2026 transitions. [2024-11-28 02:20:17,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2026 transitions. [2024-11-28 02:20:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-28 02:20:17,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:17,042 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:17,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:20:17,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:17,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2065029518, now seen corresponding path program 1 times [2024-11-28 02:20:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:17,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788651183] [2024-11-28 02:20:17,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:17,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:17,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788651183] [2024-11-28 02:20:17,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788651183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:17,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:17,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:20:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101327834] [2024-11-28 02:20:17,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:17,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:20:17,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:17,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:20:17,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:17,555 INFO L87 Difference]: Start difference. First operand 1269 states and 2026 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:18,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:18,132 INFO L93 Difference]: Finished difference Result 3127 states and 4977 transitions. [2024-11-28 02:20:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:20:18,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 367 [2024-11-28 02:20:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:18,149 INFO L225 Difference]: With dead ends: 3127 [2024-11-28 02:20:18,149 INFO L226 Difference]: Without dead ends: 2211 [2024-11-28 02:20:18,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:20:18,153 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 401 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:18,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1037 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:20:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2024-11-28 02:20:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2151. [2024-11-28 02:20:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 1665 states have (on average 1.4954954954954955) internal successors, (2490), 1669 states have internal predecessors, (2490), 466 states have call successors, (466), 19 states have call predecessors, (466), 19 states have return successors, (466), 462 states have call predecessors, (466), 466 states have call successors, (466) [2024-11-28 02:20:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3422 transitions. [2024-11-28 02:20:18,432 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3422 transitions. Word has length 367 [2024-11-28 02:20:18,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:18,433 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 3422 transitions. [2024-11-28 02:20:18,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:18,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3422 transitions. [2024-11-28 02:20:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-28 02:20:18,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:18,438 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:18,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:20:18,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:18,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:18,439 INFO L85 PathProgramCache]: Analyzing trace with hash 985219643, now seen corresponding path program 1 times [2024-11-28 02:20:18,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:18,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920818807] [2024-11-28 02:20:18,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:18,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:19,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:19,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920818807] [2024-11-28 02:20:19,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920818807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:19,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:19,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:20:19,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400662163] [2024-11-28 02:20:19,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:19,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:20:19,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:19,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:20:19,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:20:19,169 INFO L87 Difference]: Start difference. First operand 2151 states and 3422 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:20,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:20,080 INFO L93 Difference]: Finished difference Result 5947 states and 9406 transitions. [2024-11-28 02:20:20,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:20:20,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 368 [2024-11-28 02:20:20,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:20,112 INFO L225 Difference]: With dead ends: 5947 [2024-11-28 02:20:20,113 INFO L226 Difference]: Without dead ends: 4193 [2024-11-28 02:20:20,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:20:20,121 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 786 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:20,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2315 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:20:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2024-11-28 02:20:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3947. [2024-11-28 02:20:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3033 states have (on average 1.4909330695680845) internal successors, (4522), 3041 states have internal predecessors, (4522), 878 states have call successors, (878), 35 states have call predecessors, (878), 35 states have return successors, (878), 870 states have call predecessors, (878), 878 states have call successors, (878) [2024-11-28 02:20:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6278 transitions. [2024-11-28 02:20:20,678 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6278 transitions. Word has length 368 [2024-11-28 02:20:20,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:20,680 INFO L471 AbstractCegarLoop]: Abstraction has 3947 states and 6278 transitions. [2024-11-28 02:20:20,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6278 transitions. [2024-11-28 02:20:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-28 02:20:20,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:20,687 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:20,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:20:20,688 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:20,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:20,688 INFO L85 PathProgramCache]: Analyzing trace with hash 592192633, now seen corresponding path program 1 times [2024-11-28 02:20:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:20,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416926261] [2024-11-28 02:20:20,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:20,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:21,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:21,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416926261] [2024-11-28 02:20:21,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416926261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:21,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:20:21,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962849305] [2024-11-28 02:20:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:21,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:20:21,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:21,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:20:21,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:21,590 INFO L87 Difference]: Start difference. First operand 3947 states and 6278 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:22,367 INFO L93 Difference]: Finished difference Result 7783 states and 12316 transitions. [2024-11-28 02:20:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:20:22,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 368 [2024-11-28 02:20:22,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:22,397 INFO L225 Difference]: With dead ends: 7783 [2024-11-28 02:20:22,398 INFO L226 Difference]: Without dead ends: 4189 [2024-11-28 02:20:22,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:20:22,410 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 355 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:22,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1010 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:20:22,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2024-11-28 02:20:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 3979. [2024-11-28 02:20:22,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3979 states, 3065 states have (on average 1.4845024469820554) internal successors, (4550), 3073 states have internal predecessors, (4550), 878 states have call successors, (878), 35 states have call predecessors, (878), 35 states have return successors, (878), 870 states have call predecessors, (878), 878 states have call successors, (878) [2024-11-28 02:20:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 6306 transitions. [2024-11-28 02:20:22,882 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 6306 transitions. Word has length 368 [2024-11-28 02:20:22,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:22,883 INFO L471 AbstractCegarLoop]: Abstraction has 3979 states and 6306 transitions. [2024-11-28 02:20:22,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 6306 transitions. [2024-11-28 02:20:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-28 02:20:22,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:22,891 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:22,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:20:22,892 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:22,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1964386349, now seen corresponding path program 1 times [2024-11-28 02:20:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:22,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066474053] [2024-11-28 02:20:22,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:23,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:23,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:23,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066474053] [2024-11-28 02:20:23,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066474053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:23,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:23,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:20:23,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936689516] [2024-11-28 02:20:23,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:23,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:20:23,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:23,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:20:23,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:23,593 INFO L87 Difference]: Start difference. First operand 3979 states and 6306 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:24,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:24,768 INFO L93 Difference]: Finished difference Result 11361 states and 17914 transitions. [2024-11-28 02:20:24,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:20:24,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 369 [2024-11-28 02:20:24,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:24,813 INFO L225 Difference]: With dead ends: 11361 [2024-11-28 02:20:24,813 INFO L226 Difference]: Without dead ends: 7643 [2024-11-28 02:20:24,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:20:24,827 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 781 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:24,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 583 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:20:24,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2024-11-28 02:20:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6665. [2024-11-28 02:20:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6665 states, 4887 states have (on average 1.401268671986904) internal successors, (6848), 4911 states have internal predecessors, (6848), 1702 states have call successors, (1702), 75 states have call predecessors, (1702), 75 states have return successors, (1702), 1678 states have call predecessors, (1702), 1702 states have call successors, (1702) [2024-11-28 02:20:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6665 states to 6665 states and 10252 transitions. [2024-11-28 02:20:25,790 INFO L78 Accepts]: Start accepts. Automaton has 6665 states and 10252 transitions. Word has length 369 [2024-11-28 02:20:25,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:25,791 INFO L471 AbstractCegarLoop]: Abstraction has 6665 states and 10252 transitions. [2024-11-28 02:20:25,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6665 states and 10252 transitions. [2024-11-28 02:20:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-28 02:20:25,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:25,796 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:25,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:20:25,797 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:25,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:25,798 INFO L85 PathProgramCache]: Analyzing trace with hash 422002925, now seen corresponding path program 1 times [2024-11-28 02:20:25,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:25,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975315907] [2024-11-28 02:20:25,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:25,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:26,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:26,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975315907] [2024-11-28 02:20:26,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975315907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:26,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:26,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:20:26,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544321816] [2024-11-28 02:20:26,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:26,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:20:26,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:26,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:20:26,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:20:26,627 INFO L87 Difference]: Start difference. First operand 6665 states and 10252 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:28,126 INFO L93 Difference]: Finished difference Result 16599 states and 25475 transitions. [2024-11-28 02:20:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:20:28,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 369 [2024-11-28 02:20:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:28,208 INFO L225 Difference]: With dead ends: 16599 [2024-11-28 02:20:28,209 INFO L226 Difference]: Without dead ends: 10357 [2024-11-28 02:20:28,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:20:28,233 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 406 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:28,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1342 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:20:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10357 states. [2024-11-28 02:20:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10357 to 9681. [2024-11-28 02:20:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9681 states, 7043 states have (on average 1.39542808462303) internal successors, (9828), 7079 states have internal predecessors, (9828), 2526 states have call successors, (2526), 111 states have call predecessors, (2526), 111 states have return successors, (2526), 2490 states have call predecessors, (2526), 2526 states have call successors, (2526) [2024-11-28 02:20:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9681 states to 9681 states and 14880 transitions. [2024-11-28 02:20:29,816 INFO L78 Accepts]: Start accepts. Automaton has 9681 states and 14880 transitions. Word has length 369 [2024-11-28 02:20:29,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:29,818 INFO L471 AbstractCegarLoop]: Abstraction has 9681 states and 14880 transitions. [2024-11-28 02:20:29,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:29,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9681 states and 14880 transitions. [2024-11-28 02:20:29,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-28 02:20:29,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:29,825 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:29,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:20:29,825 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:29,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash 640857643, now seen corresponding path program 1 times [2024-11-28 02:20:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:29,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596113914] [2024-11-28 02:20:29,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:29,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:30,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:30,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596113914] [2024-11-28 02:20:30,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596113914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:30,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:30,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:20:30,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449323415] [2024-11-28 02:20:30,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:30,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:20:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:30,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:20:30,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:20:30,807 INFO L87 Difference]: Start difference. First operand 9681 states and 14880 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:31,935 INFO L93 Difference]: Finished difference Result 19653 states and 30246 transitions. [2024-11-28 02:20:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:20:31,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 369 [2024-11-28 02:20:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:31,995 INFO L225 Difference]: With dead ends: 19653 [2024-11-28 02:20:31,995 INFO L226 Difference]: Without dead ends: 10851 [2024-11-28 02:20:32,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:20:32,027 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 71 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:32,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1381 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:20:32,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2024-11-28 02:20:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10305. [2024-11-28 02:20:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10305 states, 7667 states have (on average 1.3935046302334682) internal successors, (10684), 7703 states have internal predecessors, (10684), 2526 states have call successors, (2526), 111 states have call predecessors, (2526), 111 states have return successors, (2526), 2490 states have call predecessors, (2526), 2526 states have call successors, (2526) [2024-11-28 02:20:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10305 states to 10305 states and 15736 transitions. [2024-11-28 02:20:33,199 INFO L78 Accepts]: Start accepts. Automaton has 10305 states and 15736 transitions. Word has length 369 [2024-11-28 02:20:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:33,200 INFO L471 AbstractCegarLoop]: Abstraction has 10305 states and 15736 transitions. [2024-11-28 02:20:33,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-28 02:20:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 10305 states and 15736 transitions. [2024-11-28 02:20:33,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-28 02:20:33,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:33,205 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:33,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:20:33,206 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:33,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1645529917, now seen corresponding path program 1 times [2024-11-28 02:20:33,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:33,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549579250] [2024-11-28 02:20:33,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:33,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 66 proven. 93 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-28 02:20:33,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:33,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549579250] [2024-11-28 02:20:33,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549579250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:20:33,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382385426] [2024-11-28 02:20:33,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:33,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:20:33,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:20:33,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:20:33,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:20:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:34,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:20:34,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:20:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 935 proven. 12 refuted. 0 times theorem prover too weak. 4777 trivial. 0 not checked. [2024-11-28 02:20:34,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:20:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 147 proven. 12 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-28 02:20:34,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382385426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:20:34,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:20:34,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 02:20:34,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593003451] [2024-11-28 02:20:34,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:20:34,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:20:34,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:34,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:20:34,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:20:34,777 INFO L87 Difference]: Start difference. First operand 10305 states and 15736 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2024-11-28 02:20:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:36,360 INFO L93 Difference]: Finished difference Result 16669 states and 25433 transitions. [2024-11-28 02:20:36,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:20:36,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 374 [2024-11-28 02:20:36,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:36,412 INFO L225 Difference]: With dead ends: 16669 [2024-11-28 02:20:36,412 INFO L226 Difference]: Without dead ends: 6599 [2024-11-28 02:20:36,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 745 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:20:36,445 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 455 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:36,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 890 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:20:36,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2024-11-28 02:20:37,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 6473. [2024-11-28 02:20:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6473 states, 5009 states have (on average 1.4262327809942104) internal successors, (7144), 5021 states have internal predecessors, (7144), 1350 states have call successors, (1350), 113 states have call predecessors, (1350), 113 states have return successors, (1350), 1338 states have call predecessors, (1350), 1350 states have call successors, (1350) [2024-11-28 02:20:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 9844 transitions. [2024-11-28 02:20:37,220 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 9844 transitions. Word has length 374 [2024-11-28 02:20:37,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:37,221 INFO L471 AbstractCegarLoop]: Abstraction has 6473 states and 9844 transitions. [2024-11-28 02:20:37,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2024-11-28 02:20:37,221 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 9844 transitions. [2024-11-28 02:20:37,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-28 02:20:37,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:37,228 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:37,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:20:37,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 02:20:37,429 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:37,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash 68115138, now seen corresponding path program 1 times [2024-11-28 02:20:37,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:37,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236628640] [2024-11-28 02:20:37,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:37,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:20:38,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050582536] [2024-11-28 02:20:38,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:38,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:20:38,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:20:38,310 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:20:38,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:20:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:38,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:20:38,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:20:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 2885 proven. 87 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2024-11-28 02:20:39,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:20:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 72 proven. 87 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-28 02:20:40,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236628640] [2024-11-28 02:20:40,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:20:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050582536] [2024-11-28 02:20:40,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050582536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:20:40,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:20:40,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-28 02:20:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887493926] [2024-11-28 02:20:40,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:20:40,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:20:40,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:40,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:20:40,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:20:40,123 INFO L87 Difference]: Start difference. First operand 6473 states and 9844 transitions. Second operand has 12 states, 12 states have (on average 12.25) internal successors, (147), 12 states have internal predecessors, (147), 3 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2024-11-28 02:20:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:44,686 INFO L93 Difference]: Finished difference Result 26127 states and 39354 transitions. [2024-11-28 02:20:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 02:20:44,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.25) internal successors, (147), 12 states have internal predecessors, (147), 3 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 375 [2024-11-28 02:20:44,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:44,780 INFO L225 Difference]: With dead ends: 26127 [2024-11-28 02:20:44,780 INFO L226 Difference]: Without dead ends: 19829 [2024-11-28 02:20:44,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2024-11-28 02:20:44,802 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 1301 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:44,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2194 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 02:20:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19829 states. [2024-11-28 02:20:46,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19829 to 12936. [2024-11-28 02:20:46,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12936 states, 10019 states have (on average 1.4170076853977442) internal successors, (14197), 10043 states have internal predecessors, (14197), 2646 states have call successors, (2646), 270 states have call predecessors, (2646), 270 states have return successors, (2646), 2622 states have call predecessors, (2646), 2646 states have call successors, (2646) [2024-11-28 02:20:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12936 states to 12936 states and 19489 transitions. [2024-11-28 02:20:46,627 INFO L78 Accepts]: Start accepts. Automaton has 12936 states and 19489 transitions. Word has length 375 [2024-11-28 02:20:46,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:20:46,628 INFO L471 AbstractCegarLoop]: Abstraction has 12936 states and 19489 transitions. [2024-11-28 02:20:46,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.25) internal successors, (147), 12 states have internal predecessors, (147), 3 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2024-11-28 02:20:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12936 states and 19489 transitions. [2024-11-28 02:20:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-28 02:20:46,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:46,634 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:46,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:20:46,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:20:46,839 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:46,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:46,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1693303262, now seen corresponding path program 1 times [2024-11-28 02:20:46,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:46,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244136423] [2024-11-28 02:20:46,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:47,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:20:47,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:47,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244136423] [2024-11-28 02:20:47,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244136423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:47,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:47,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:20:47,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127924002] [2024-11-28 02:20:47,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:47,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:20:47,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:47,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:20:47,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:20:47,589 INFO L87 Difference]: Start difference. First operand 12936 states and 19489 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:20:56,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:20:56,678 INFO L93 Difference]: Finished difference Result 97835 states and 146113 transitions. [2024-11-28 02:20:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:20:56,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 376 [2024-11-28 02:20:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:20:57,011 INFO L225 Difference]: With dead ends: 97835 [2024-11-28 02:20:57,012 INFO L226 Difference]: Without dead ends: 84658 [2024-11-28 02:20:57,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:20:57,052 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 2672 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:20:57,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 4158 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 02:20:57,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84658 states. [2024-11-28 02:21:04,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84658 to 65322. [2024-11-28 02:21:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65322 states, 50813 states have (on average 1.3979099836655975) internal successors, (71032), 51005 states have internal predecessors, (71032), 13206 states have call successors, (13206), 1302 states have call predecessors, (13206), 1302 states have return successors, (13206), 13014 states have call predecessors, (13206), 13206 states have call successors, (13206) [2024-11-28 02:21:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65322 states to 65322 states and 97444 transitions. [2024-11-28 02:21:04,948 INFO L78 Accepts]: Start accepts. Automaton has 65322 states and 97444 transitions. Word has length 376 [2024-11-28 02:21:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:04,949 INFO L471 AbstractCegarLoop]: Abstraction has 65322 states and 97444 transitions. [2024-11-28 02:21:04,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:21:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 65322 states and 97444 transitions. [2024-11-28 02:21:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-28 02:21:04,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:04,965 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:04,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:21:04,966 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:04,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:04,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1895127196, now seen corresponding path program 1 times [2024-11-28 02:21:04,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:04,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084890971] [2024-11-28 02:21:04,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:04,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:21:05,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020583367] [2024-11-28 02:21:05,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:05,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:21:05,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:21:05,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:21:05,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:21:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:05,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:21:05,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 659 proven. 150 refuted. 0 times theorem prover too weak. 4915 trivial. 0 not checked. [2024-11-28 02:21:07,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:21:09,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:09,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084890971] [2024-11-28 02:21:09,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:21:09,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020583367] [2024-11-28 02:21:09,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020583367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:21:09,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:21:09,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:21:09,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693811762] [2024-11-28 02:21:09,480 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:21:09,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:21:09,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:09,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:21:09,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:21:09,482 INFO L87 Difference]: Start difference. First operand 65322 states and 97444 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:21:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:19,010 INFO L93 Difference]: Finished difference Result 154662 states and 228579 transitions. [2024-11-28 02:21:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:21:19,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 376 [2024-11-28 02:21:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:19,593 INFO L225 Difference]: With dead ends: 154662 [2024-11-28 02:21:19,593 INFO L226 Difference]: Without dead ends: 112128 [2024-11-28 02:21:19,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:21:19,712 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 361 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:19,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1554 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:21:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112128 states. [2024-11-28 02:21:28,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112128 to 109738. [2024-11-28 02:21:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109738 states, 84755 states have (on average 1.386797239100938) internal successors, (117538), 85259 states have internal predecessors, (117538), 22342 states have call successors, (22342), 2640 states have call predecessors, (22342), 2640 states have return successors, (22342), 21838 states have call predecessors, (22342), 22342 states have call successors, (22342) [2024-11-28 02:21:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109738 states to 109738 states and 162222 transitions. [2024-11-28 02:21:29,472 INFO L78 Accepts]: Start accepts. Automaton has 109738 states and 162222 transitions. Word has length 376 [2024-11-28 02:21:29,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:29,477 INFO L471 AbstractCegarLoop]: Abstraction has 109738 states and 162222 transitions. [2024-11-28 02:21:29,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:21:29,477 INFO L276 IsEmpty]: Start isEmpty. Operand 109738 states and 162222 transitions. [2024-11-28 02:21:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-28 02:21:29,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:29,511 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:29,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:21:29,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f85326e-6567-44dc-a0d5-236d70312b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 02:21:29,716 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:29,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:29,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1937624872, now seen corresponding path program 1 times [2024-11-28 02:21:29,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:29,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874921408] [2024-11-28 02:21:29,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:29,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:21:30,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:30,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874921408] [2024-11-28 02:21:30,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874921408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:30,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:30,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:21:30,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569413097] [2024-11-28 02:21:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:30,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:21:30,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:30,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:21:30,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:21:30,380 INFO L87 Difference]: Start difference. First operand 109738 states and 162222 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54)