./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0afd03d96250b15a3092af5b8545562faa42b0b4fabe531d4bd1ca219b78fa15 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:36:08,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:36:08,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:36:08,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:36:08,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:36:08,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:36:08,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:36:08,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:36:08,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:36:08,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:36:08,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:36:08,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:36:08,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:36:08,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:36:08,511 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:36:08,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:36:08,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:36:08,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:36:08,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:36:08,513 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:36:08,513 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:36:08,513 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:36:08,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:36:08,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:36:08,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:36:08,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:36:08,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:36:08,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:36:08,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:36:08,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:36:08,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:36:08,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:36:08,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:36:08,518 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:36:08,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:36:08,520 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_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0afd03d96250b15a3092af5b8545562faa42b0b4fabe531d4bd1ca219b78fa15 [2024-11-23 18:36:08,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:36:08,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:36:08,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:36:08,912 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:36:08,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:36:08,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i [2024-11-23 18:36:12,644 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/data/ef5dac6ba/0cb71aefcebd42679e812794ba3e2561/FLAG8b092cf71 [2024-11-23 18:36:12,932 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:36:12,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i [2024-11-23 18:36:12,942 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/data/ef5dac6ba/0cb71aefcebd42679e812794ba3e2561/FLAG8b092cf71 [2024-11-23 18:36:12,959 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/data/ef5dac6ba/0cb71aefcebd42679e812794ba3e2561 [2024-11-23 18:36:12,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:36:12,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:36:12,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:36:12,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:36:12,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:36:12,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:36:12" (1/1) ... [2024-11-23 18:36:12,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ad7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:12, skipping insertion in model container [2024-11-23 18:36:12,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:36:12" (1/1) ... [2024-11-23 18:36:12,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:36:13,192 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_ec8db747-8e8e-4fb0-8a02-198f04621dd4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i[919,932] [2024-11-23 18:36:13,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:36:13,298 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:36:13,313 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_ec8db747-8e8e-4fb0-8a02-198f04621dd4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i[919,932] [2024-11-23 18:36:13,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:36:13,382 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:36:13,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13 WrapperNode [2024-11-23 18:36:13,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:36:13,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:36:13,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:36:13,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:36:13,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,439 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 214 [2024-11-23 18:36:13,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:36:13,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:36:13,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:36:13,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:36:13,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,493 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:36:13,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:36:13,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:36:13,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:36:13,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:36:13,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (1/1) ... [2024-11-23 18:36:13,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:36:13,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:13,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:36:13,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:36:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:36:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:36:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:36:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:36:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:36:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:36:13,713 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:36:13,715 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:36:14,378 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-23 18:36:14,379 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:36:14,401 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:36:14,401 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:36:14,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:36:14 BoogieIcfgContainer [2024-11-23 18:36:14,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:36:14,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:36:14,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:36:14,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:36:14,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:36:12" (1/3) ... [2024-11-23 18:36:14,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c0a8b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:36:14, skipping insertion in model container [2024-11-23 18:36:14,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:13" (2/3) ... [2024-11-23 18:36:14,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c0a8b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:36:14, skipping insertion in model container [2024-11-23 18:36:14,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:36:14" (3/3) ... [2024-11-23 18:36:14,419 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i [2024-11-23 18:36:14,440 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:36:14,442 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-64.i that has 2 procedures, 90 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:36:14,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:36:14,561 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;@5c20e26a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:36:14,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:36:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 59 states have (on average 1.423728813559322) internal successors, (84), 60 states have internal predecessors, (84), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:36:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 18:36:14,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:14,591 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:14,594 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:14,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1202833957, now seen corresponding path program 1 times [2024-11-23 18:36:14,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:14,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948953537] [2024-11-23 18:36:14,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:14,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2024-11-23 18:36:15,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948953537] [2024-11-23 18:36:15,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948953537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:15,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462212286] [2024-11-23 18:36:15,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:15,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:15,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:15,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:15,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:36:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:15,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:36:15,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:36:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2024-11-23 18:36:15,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:36:15,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462212286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:15,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:36:15,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:36:15,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196036706] [2024-11-23 18:36:15,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:15,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:36:15,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:15,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:36:15,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:36:15,589 INFO L87 Difference]: Start difference. First operand has 90 states, 59 states have (on average 1.423728813559322) internal successors, (84), 60 states have internal predecessors, (84), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-23 18:36:15,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:15,628 INFO L93 Difference]: Finished difference Result 173 states and 302 transitions. [2024-11-23 18:36:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:36:15,630 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 183 [2024-11-23 18:36:15,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:15,639 INFO L225 Difference]: With dead ends: 173 [2024-11-23 18:36:15,639 INFO L226 Difference]: Without dead ends: 86 [2024-11-23 18:36:15,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:36:15,647 INFO L435 NwaCegarLoop]: 133 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, 133 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 [2024-11-23 18:36:15,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:36:15,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-23 18:36:15,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-23 18:36:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.375) internal successors, (77), 56 states have internal predecessors, (77), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:36:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 133 transitions. [2024-11-23 18:36:15,725 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 133 transitions. Word has length 183 [2024-11-23 18:36:15,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:15,726 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 133 transitions. [2024-11-23 18:36:15,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-23 18:36:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 133 transitions. [2024-11-23 18:36:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 18:36:15,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:15,731 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:15,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:36:15,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec8db747-8e8e-4fb0-8a02-198f04621dd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:36:15,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:15,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:15,933 INFO L85 PathProgramCache]: Analyzing trace with hash 42587369, now seen corresponding path program 1 times [2024-11-23 18:36:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:15,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414951482] [2024-11-23 18:36:15,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:15,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-23 18:36:17,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414951482] [2024-11-23 18:36:17,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414951482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:17,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:17,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:36:17,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832087681] [2024-11-23 18:36:17,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:17,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:36:17,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:17,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:36:17,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:36:17,119 INFO L87 Difference]: Start difference. First operand 86 states and 133 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:36:17,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:17,673 INFO L93 Difference]: Finished difference Result 261 states and 401 transitions. [2024-11-23 18:36:17,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:36:17,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2024-11-23 18:36:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:17,682 INFO L225 Difference]: With dead ends: 261 [2024-11-23 18:36:17,682 INFO L226 Difference]: Without dead ends: 178 [2024-11-23 18:36:17,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:36:17,687 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 143 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:17,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 621 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:36:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-23 18:36:17,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 90. [2024-11-23 18:36:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 60 states have internal predecessors, (83), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:36:17,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 139 transitions. [2024-11-23 18:36:17,723 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 139 transitions. Word has length 183 [2024-11-23 18:36:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:17,728 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 139 transitions. [2024-11-23 18:36:17,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:36:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 139 transitions. [2024-11-23 18:36:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 18:36:17,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:17,734 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:17,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:36:17,735 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:17,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:17,735 INFO L85 PathProgramCache]: Analyzing trace with hash -766759257, now seen corresponding path program 1 times [2024-11-23 18:36:17,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:17,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445139464] [2024-11-23 18:36:17,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:17,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-23 18:36:18,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:18,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445139464] [2024-11-23 18:36:18,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445139464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:18,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:18,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:36:18,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067843314] [2024-11-23 18:36:18,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:18,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:36:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:18,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:36:18,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:36:18,372 INFO L87 Difference]: Start difference. First operand 90 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:36:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:18,713 INFO L93 Difference]: Finished difference Result 265 states and 406 transitions. [2024-11-23 18:36:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:36:18,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2024-11-23 18:36:18,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:18,718 INFO L225 Difference]: With dead ends: 265 [2024-11-23 18:36:18,718 INFO L226 Difference]: Without dead ends: 178 [2024-11-23 18:36:18,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:36:18,721 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 133 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:18,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 782 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:36:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-23 18:36:18,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 90. [2024-11-23 18:36:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 60 states have internal predecessors, (83), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:36:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 139 transitions. [2024-11-23 18:36:18,746 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 139 transitions. Word has length 183 [2024-11-23 18:36:18,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:18,749 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 139 transitions. [2024-11-23 18:36:18,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:36:18,750 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 139 transitions. [2024-11-23 18:36:18,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 18:36:18,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:18,758 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:18,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:36:18,758 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:18,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash -474565655, now seen corresponding path program 1 times [2024-11-23 18:36:18,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:18,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002847807] [2024-11-23 18:36:18,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:18,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-23 18:36:24,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:24,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002847807] [2024-11-23 18:36:24,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002847807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:24,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:24,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:36:24,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849757510] [2024-11-23 18:36:24,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:24,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:36:24,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:24,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:36:24,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:36:24,030 INFO L87 Difference]: Start difference. First operand 90 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:36:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:24,713 INFO L93 Difference]: Finished difference Result 311 states and 483 transitions. [2024-11-23 18:36:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:36:24,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2024-11-23 18:36:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:24,718 INFO L225 Difference]: With dead ends: 311 [2024-11-23 18:36:24,718 INFO L226 Difference]: Without dead ends: 224 [2024-11-23 18:36:24,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:36:24,720 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 174 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:24,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 615 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:36:24,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-23 18:36:24,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 86. [2024-11-23 18:36:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:36:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 132 transitions. [2024-11-23 18:36:24,741 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 132 transitions. Word has length 183 [2024-11-23 18:36:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:24,742 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 132 transitions. [2024-11-23 18:36:24,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:36:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 132 transitions. [2024-11-23 18:36:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 18:36:24,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:24,746 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:36:24,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:36:24,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:24,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:24,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1723302596, now seen corresponding path program 1 times [2024-11-23 18:36:24,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:24,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514022431] [2024-11-23 18:36:24,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:48:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-23 18:48:56,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:48:56,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514022431] [2024-11-23 18:48:56,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514022431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:48:56,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:48:56,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 18:48:56,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261678264] [2024-11-23 18:48:56,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:48:56,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 18:48:56,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:48:56,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 18:48:56,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:48:56,009 INFO L87 Difference]: Start difference. First operand 86 states and 132 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:49:06,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:49:06,006 INFO L93 Difference]: Finished difference Result 190 states and 275 transitions. [2024-11-23 18:49:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:49:06,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 185 [2024-11-23 18:49:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:49:06,010 INFO L225 Difference]: With dead ends: 190 [2024-11-23 18:49:06,010 INFO L226 Difference]: Without dead ends: 188 [2024-11-23 18:49:06,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:49:06,012 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 170 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:49:06,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 850 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 18:49:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-23 18:49:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 138. [2024-11-23 18:49:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 99 states have (on average 1.404040404040404) internal successors, (139), 100 states have internal predecessors, (139), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:49:06,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 211 transitions. [2024-11-23 18:49:06,052 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 211 transitions. Word has length 185 [2024-11-23 18:49:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:49:06,053 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 211 transitions. [2024-11-23 18:49:06,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-23 18:49:06,054 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 211 transitions. [2024-11-23 18:49:06,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 18:49:06,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:49:06,057 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:49:06,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:49:06,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:49:06,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:49:06,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1981468034, now seen corresponding path program 1 times [2024-11-23 18:49:06,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:49:06,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072509319] [2024-11-23 18:49:06,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:49:06,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:49:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat