./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:13:04,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:13:04,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 05:13:04,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:13:04,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:13:04,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:13:04,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:13:04,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:13:04,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 05:13:04,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 05:13:04,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:13:04,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:13:04,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:13:04,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:13:04,127 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:13:04,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:13:04,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:13:04,128 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:13:04,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:13:04,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:13:04,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:13:04,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:13:04,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:13:04,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:13:04,131 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:13:04,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:13:04,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:13:04,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:13:04,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:13:04,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:13:04,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 05:13:04,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:13:04,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:13:04,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:13:04,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:13:04,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:13:04,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:13:04,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:13:04,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:13:04,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:13:04,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:13:04,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:13:04,137 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2024-11-19 05:13:04,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:13:04,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:13:04,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:13:04,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:13:04,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:13:04,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2024-11-19 05:13:05,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:13:06,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:13:06,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2024-11-19 05:13:06,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4d3ad9e/5c8ecccb6571473bbbb15fd2db0b45a1/FLAG10c0d6aea [2024-11-19 05:13:06,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4d3ad9e/5c8ecccb6571473bbbb15fd2db0b45a1 [2024-11-19 05:13:06,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:13:06,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:13:06,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:13:06,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:13:06,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:13:06,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:06" (1/1) ... [2024-11-19 05:13:06,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3907fa81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:06, skipping insertion in model container [2024-11-19 05:13:06,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:06" (1/1) ... [2024-11-19 05:13:06,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:13:06,784 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i[37019,37032] [2024-11-19 05:13:06,908 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i[47352,47365] [2024-11-19 05:13:06,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:13:06,927 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:13:06,971 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i[37019,37032] [2024-11-19 05:13:07,046 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i[47352,47365] [2024-11-19 05:13:07,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:13:07,098 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:13:07,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07 WrapperNode [2024-11-19 05:13:07,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:13:07,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:13:07,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:13:07,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:13:07,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,230 INFO L138 Inliner]: procedures = 208, calls = 227, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1302 [2024-11-19 05:13:07,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:13:07,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:13:07,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:13:07,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:13:07,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,331 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-19 05:13:07,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:13:07,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:13:07,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:13:07,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:13:07,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (1/1) ... [2024-11-19 05:13:07,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:13:07,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:13:07,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:13:07,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:13:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 05:13:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 05:13:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 05:13:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 05:13:07,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 05:13:07,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 05:13:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:13:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 05:13:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 05:13:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 05:13:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 05:13:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 05:13:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 05:13:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:13:07,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:13:07,741 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:13:07,743 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:13:09,060 INFO L? ?]: Removed 302 outVars from TransFormulas that were not future-live. [2024-11-19 05:13:09,061 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:13:09,085 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:13:09,088 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-19 05:13:09,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:09 BoogieIcfgContainer [2024-11-19 05:13:09,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:13:09,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:13:09,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:13:09,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:13:09,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:06" (1/3) ... [2024-11-19 05:13:09,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a97527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:09, skipping insertion in model container [2024-11-19 05:13:09,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:07" (2/3) ... [2024-11-19 05:13:09,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a97527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:09, skipping insertion in model container [2024-11-19 05:13:09,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:09" (3/3) ... [2024-11-19 05:13:09,097 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2024-11-19 05:13:09,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:13:09,171 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 05:13:09,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:13:09,251 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;@28b67a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:13:09,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 05:13:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 381 states, 368 states have (on average 1.622282608695652) internal successors, (597), 375 states have internal predecessors, (597), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 05:13:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 05:13:09,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:09,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:09,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:09,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:09,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1749664919, now seen corresponding path program 1 times [2024-11-19 05:13:09,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:09,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117697386] [2024-11-19 05:13:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:09,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:13:09,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117697386] [2024-11-19 05:13:09,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117697386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:09,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:09,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:13:09,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57926465] [2024-11-19 05:13:09,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:09,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:13:09,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:13:09,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:13:09,482 INFO L87 Difference]: Start difference. First operand has 381 states, 368 states have (on average 1.622282608695652) internal successors, (597), 375 states have internal predecessors, (597), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:09,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:09,555 INFO L93 Difference]: Finished difference Result 760 states and 1229 transitions. [2024-11-19 05:13:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:13:09,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-19 05:13:09,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:09,570 INFO L225 Difference]: With dead ends: 760 [2024-11-19 05:13:09,570 INFO L226 Difference]: Without dead ends: 377 [2024-11-19 05:13:09,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:13:09,579 INFO L432 NwaCegarLoop]: 553 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, 553 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 [2024-11-19 05:13:09,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 05:13:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-19 05:13:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2024-11-19 05:13:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.4602739726027398) internal successors, (533), 371 states have internal predecessors, (533), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 05:13:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 549 transitions. [2024-11-19 05:13:09,650 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 549 transitions. Word has length 9 [2024-11-19 05:13:09,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:09,650 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 549 transitions. [2024-11-19 05:13:09,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 549 transitions. [2024-11-19 05:13:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 05:13:09,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:09,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:09,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:13:09,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:09,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2144728515, now seen corresponding path program 1 times [2024-11-19 05:13:09,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948694105] [2024-11-19 05:13:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:09,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:13:10,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:10,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948694105] [2024-11-19 05:13:10,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948694105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:10,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:10,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:13:10,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019887746] [2024-11-19 05:13:10,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:10,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:13:10,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:10,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:13:10,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:13:10,167 INFO L87 Difference]: Start difference. First operand 377 states and 549 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:10,321 INFO L93 Difference]: Finished difference Result 917 states and 1346 transitions. [2024-11-19 05:13:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 05:13:10,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 05:13:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:10,327 INFO L225 Difference]: With dead ends: 917 [2024-11-19 05:13:10,328 INFO L226 Difference]: Without dead ends: 741 [2024-11-19 05:13:10,329 INFO L431 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 [2024-11-19 05:13:10,332 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 518 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:10,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1669 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:13:10,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-19 05:13:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 379. [2024-11-19 05:13:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 367 states have (on average 1.457765667574932) internal successors, (535), 373 states have internal predecessors, (535), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 05:13:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 551 transitions. [2024-11-19 05:13:10,368 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 551 transitions. Word has length 64 [2024-11-19 05:13:10,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:10,369 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 551 transitions. [2024-11-19 05:13:10,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 551 transitions. [2024-11-19 05:13:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 05:13:10,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:10,374 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:10,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:13:10,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:10,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 799714340, now seen corresponding path program 1 times [2024-11-19 05:13:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:10,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282126585] [2024-11-19 05:13:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:10,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:13:10,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:10,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282126585] [2024-11-19 05:13:10,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282126585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:10,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:10,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:13:10,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368983847] [2024-11-19 05:13:10,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:10,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:13:10,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:10,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:13:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:13:10,798 INFO L87 Difference]: Start difference. First operand 379 states and 551 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:10,922 INFO L93 Difference]: Finished difference Result 712 states and 1032 transitions. [2024-11-19 05:13:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:13:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-19 05:13:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:10,925 INFO L225 Difference]: With dead ends: 712 [2024-11-19 05:13:10,926 INFO L226 Difference]: Without dead ends: 337 [2024-11-19 05:13:10,929 INFO L431 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 [2024-11-19 05:13:10,930 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 30 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:10,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1322 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:13:10,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-19 05:13:10,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-19 05:13:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 325 states have (on average 1.4092307692307693) internal successors, (458), 331 states have internal predecessors, (458), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 05:13:10,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 474 transitions. [2024-11-19 05:13:10,951 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 474 transitions. Word has length 140 [2024-11-19 05:13:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:10,951 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 474 transitions. [2024-11-19 05:13:10,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 474 transitions. [2024-11-19 05:13:10,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 05:13:10,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:10,956 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:10,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:13:10,956 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:10,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1221731408, now seen corresponding path program 1 times [2024-11-19 05:13:10,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:10,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948937573] [2024-11-19 05:13:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:10,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:13:11,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948937573] [2024-11-19 05:13:11,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948937573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:11,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:13:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239738167] [2024-11-19 05:13:11,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:11,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:13:11,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:13:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:13:11,169 INFO L87 Difference]: Start difference. First operand 337 states and 474 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:11,252 INFO L93 Difference]: Finished difference Result 905 states and 1288 transitions. [2024-11-19 05:13:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:13:11,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-19 05:13:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:11,259 INFO L225 Difference]: With dead ends: 905 [2024-11-19 05:13:11,260 INFO L226 Difference]: Without dead ends: 572 [2024-11-19 05:13:11,261 INFO L431 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 [2024-11-19 05:13:11,262 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 271 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:11,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:13:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-19 05:13:11,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 570. [2024-11-19 05:13:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 553 states have (on average 1.426763110307414) internal successors, (789), 564 states have internal predecessors, (789), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 05:13:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 815 transitions. [2024-11-19 05:13:11,289 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 815 transitions. Word has length 140 [2024-11-19 05:13:11,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:11,290 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 815 transitions. [2024-11-19 05:13:11,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:13:11,291 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 815 transitions. [2024-11-19 05:13:11,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 05:13:11,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:11,295 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:11,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:13:11,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:11,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash -572234936, now seen corresponding path program 1 times [2024-11-19 05:13:11,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:11,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468963594] [2024-11-19 05:13:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:11,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 05:13:11,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:11,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468963594] [2024-11-19 05:13:11,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468963594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:11,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:11,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:13:11,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252857897] [2024-11-19 05:13:11,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:11,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:13:11,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:11,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:13:11,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:13:11,686 INFO L87 Difference]: Start difference. First operand 570 states and 815 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:11,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:11,791 INFO L93 Difference]: Finished difference Result 807 states and 1165 transitions. [2024-11-19 05:13:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:13:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-19 05:13:11,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:11,796 INFO L225 Difference]: With dead ends: 807 [2024-11-19 05:13:11,797 INFO L226 Difference]: Without dead ends: 486 [2024-11-19 05:13:11,798 INFO L431 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 [2024-11-19 05:13:11,799 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 30 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:11,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1073 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:13:11,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-19 05:13:11,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-19 05:13:11,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 469 states have (on average 1.3539445628997868) internal successors, (635), 480 states have internal predecessors, (635), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 05:13:11,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 661 transitions. [2024-11-19 05:13:11,817 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 661 transitions. Word has length 155 [2024-11-19 05:13:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:11,819 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 661 transitions. [2024-11-19 05:13:11,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 661 transitions. [2024-11-19 05:13:11,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 05:13:11,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:11,821 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:11,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:13:11,824 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:11,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1743749060, now seen corresponding path program 1 times [2024-11-19 05:13:11,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:11,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732941976] [2024-11-19 05:13:11,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:11,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:12,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:12,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732941976] [2024-11-19 05:13:12,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732941976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:12,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:12,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:13:12,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104797647] [2024-11-19 05:13:12,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:12,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 05:13:12,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:12,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 05:13:12,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:13:12,160 INFO L87 Difference]: Start difference. First operand 486 states and 661 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:12,501 INFO L93 Difference]: Finished difference Result 960 states and 1306 transitions. [2024-11-19 05:13:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:13:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-19 05:13:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:12,505 INFO L225 Difference]: With dead ends: 960 [2024-11-19 05:13:12,505 INFO L226 Difference]: Without dead ends: 565 [2024-11-19 05:13:12,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:13:12,507 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 1098 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:12,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 951 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:13:12,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-19 05:13:12,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 382. [2024-11-19 05:13:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 370 states have (on average 1.3432432432432433) internal successors, (497), 376 states have internal predecessors, (497), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 05:13:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 513 transitions. [2024-11-19 05:13:12,527 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 513 transitions. Word has length 155 [2024-11-19 05:13:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:12,528 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 513 transitions. [2024-11-19 05:13:12,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 513 transitions. [2024-11-19 05:13:12,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-19 05:13:12,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:12,530 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:12,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:13:12,530 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:12,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:12,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1312150256, now seen corresponding path program 1 times [2024-11-19 05:13:12,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:12,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92874799] [2024-11-19 05:13:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:12,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:13,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:13,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92874799] [2024-11-19 05:13:13,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92874799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:13:13,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129943280] [2024-11-19 05:13:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:13,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:13:13,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:13:13,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:13:13,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:13:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:13,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:13:13,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:13:13,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 05:13:14,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:13:14,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 05:13:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:14,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:13:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129943280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:13:14,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:13:14,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-11-19 05:13:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052122665] [2024-11-19 05:13:14,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:13:14,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 05:13:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 05:13:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-19 05:13:14,458 INFO L87 Difference]: Start difference. First operand 382 states and 513 transitions. Second operand has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:13:14,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:14,749 INFO L93 Difference]: Finished difference Result 1265 states and 1709 transitions. [2024-11-19 05:13:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 05:13:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 165 [2024-11-19 05:13:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:14,755 INFO L225 Difference]: With dead ends: 1265 [2024-11-19 05:13:14,756 INFO L226 Difference]: Without dead ends: 1131 [2024-11-19 05:13:14,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 323 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-19 05:13:14,758 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1760 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:14,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 2246 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 05:13:14,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2024-11-19 05:13:14,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 729. [2024-11-19 05:13:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 713 states have (on average 1.338008415147265) internal successors, (954), 719 states have internal predecessors, (954), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-19 05:13:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 976 transitions. [2024-11-19 05:13:14,789 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 976 transitions. Word has length 165 [2024-11-19 05:13:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:14,789 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 976 transitions. [2024-11-19 05:13:14,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:13:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 976 transitions. [2024-11-19 05:13:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-19 05:13:14,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:14,796 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:14,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:13:14,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:13:14,997 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:14,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:14,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1280903433, now seen corresponding path program 1 times [2024-11-19 05:13:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:14,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33301583] [2024-11-19 05:13:14,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:14,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:19,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33301583] [2024-11-19 05:13:19,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33301583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:13:19,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102063535] [2024-11-19 05:13:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:19,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:13:19,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:13:19,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:13:19,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:13:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:20,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 05:13:20,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:13:20,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 05:13:20,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:13:20,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:13:20,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:13:20,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:13:20,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 05:13:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:20,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:13:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:13:21,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102063535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:13:21,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:13:21,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2024-11-19 05:13:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944621061] [2024-11-19 05:13:21,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:13:21,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 05:13:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:21,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 05:13:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2024-11-19 05:13:21,565 INFO L87 Difference]: Start difference. First operand 729 states and 976 transitions. Second operand has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:13:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:22,267 INFO L93 Difference]: Finished difference Result 2510 states and 3398 transitions. [2024-11-19 05:13:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 05:13:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 393 [2024-11-19 05:13:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:22,281 INFO L225 Difference]: With dead ends: 2510 [2024-11-19 05:13:22,282 INFO L226 Difference]: Without dead ends: 2376 [2024-11-19 05:13:22,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 778 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=426, Unknown=0, NotChecked=0, Total=650 [2024-11-19 05:13:22,285 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 4446 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4483 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:22,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4483 Valid, 4923 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 05:13:22,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2024-11-19 05:13:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1593. [2024-11-19 05:13:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1571 states have (on average 1.336728198599618) internal successors, (2100), 1577 states have internal predecessors, (2100), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 05:13:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2134 transitions. [2024-11-19 05:13:22,365 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2134 transitions. Word has length 393 [2024-11-19 05:13:22,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:22,366 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2134 transitions. [2024-11-19 05:13:22,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:13:22,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2134 transitions. [2024-11-19 05:13:22,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-19 05:13:22,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:22,386 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:22,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 05:13:22,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-19 05:13:22,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:22,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1645223803, now seen corresponding path program 2 times [2024-11-19 05:13:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:22,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374346378] [2024-11-19 05:13:22,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:13:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:22,980 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:13:22,981 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:13:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:13:23,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:23,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374346378] [2024-11-19 05:13:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374346378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:23,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:23,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 05:13:23,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101014407] [2024-11-19 05:13:23,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:23,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 05:13:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:23,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 05:13:23,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 05:13:23,359 INFO L87 Difference]: Start difference. First operand 1593 states and 2134 transitions. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:23,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:23,776 INFO L93 Difference]: Finished difference Result 1737 states and 2329 transitions. [2024-11-19 05:13:23,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 05:13:23,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 849 [2024-11-19 05:13:23,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:23,785 INFO L225 Difference]: With dead ends: 1737 [2024-11-19 05:13:23,786 INFO L226 Difference]: Without dead ends: 1604 [2024-11-19 05:13:23,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:13:23,789 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 21 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:23,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1563 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:13:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-19 05:13:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1597. [2024-11-19 05:13:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1575 states have (on average 1.3358730158730159) internal successors, (2104), 1581 states have internal predecessors, (2104), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 05:13:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2138 transitions. [2024-11-19 05:13:23,849 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2138 transitions. Word has length 849 [2024-11-19 05:13:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:23,851 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 2138 transitions. [2024-11-19 05:13:23,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2138 transitions. [2024-11-19 05:13:23,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-19 05:13:23,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:23,874 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:23,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:13:23,874 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:23,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:23,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1388507960, now seen corresponding path program 1 times [2024-11-19 05:13:23,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:23,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179611499] [2024-11-19 05:13:23,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:23,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:13:27,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:27,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179611499] [2024-11-19 05:13:27,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179611499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:27,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:27,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 05:13:27,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899620848] [2024-11-19 05:13:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:27,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 05:13:27,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:27,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 05:13:27,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:13:27,027 INFO L87 Difference]: Start difference. First operand 1597 states and 2138 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:27,502 INFO L93 Difference]: Finished difference Result 1749 states and 2343 transitions. [2024-11-19 05:13:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:13:27,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 850 [2024-11-19 05:13:27,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:27,513 INFO L225 Difference]: With dead ends: 1749 [2024-11-19 05:13:27,514 INFO L226 Difference]: Without dead ends: 1612 [2024-11-19 05:13:27,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:13:27,516 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 24 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:27,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2148 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 05:13:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-19 05:13:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1601. [2024-11-19 05:13:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1579 states have (on average 1.3356554781507284) internal successors, (2109), 1585 states have internal predecessors, (2109), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 05:13:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2143 transitions. [2024-11-19 05:13:27,585 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2143 transitions. Word has length 850 [2024-11-19 05:13:27,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:27,587 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2143 transitions. [2024-11-19 05:13:27,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2143 transitions. [2024-11-19 05:13:27,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-19 05:13:27,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:27,669 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:27,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:13:27,669 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:27,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2118969007, now seen corresponding path program 1 times [2024-11-19 05:13:27,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:27,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843107546] [2024-11-19 05:13:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:27,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:13:31,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:31,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843107546] [2024-11-19 05:13:31,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843107546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:31,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:31,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:13:31,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670526276] [2024-11-19 05:13:31,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:31,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:13:31,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:13:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:13:31,023 INFO L87 Difference]: Start difference. First operand 1601 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:31,567 INFO L93 Difference]: Finished difference Result 1753 states and 2350 transitions. [2024-11-19 05:13:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:13:31,570 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-19 05:13:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:31,579 INFO L225 Difference]: With dead ends: 1753 [2024-11-19 05:13:31,579 INFO L226 Difference]: Without dead ends: 1612 [2024-11-19 05:13:31,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 05:13:31,582 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 32 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:31,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2531 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 05:13:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-19 05:13:31,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1609. [2024-11-19 05:13:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1587 states have (on average 1.3352236925015752) internal successors, (2119), 1593 states have internal predecessors, (2119), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 05:13:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2153 transitions. [2024-11-19 05:13:31,643 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2153 transitions. Word has length 851 [2024-11-19 05:13:31,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:31,645 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2153 transitions. [2024-11-19 05:13:31,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2153 transitions. [2024-11-19 05:13:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-19 05:13:31,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:31,654 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:31,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:13:31,655 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:31,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1894244950, now seen corresponding path program 1 times [2024-11-19 05:13:31,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:31,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709663201] [2024-11-19 05:13:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:13:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:13:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:13:34,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:13:34,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709663201] [2024-11-19 05:13:34,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709663201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:13:34,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:13:34,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 05:13:34,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665630106] [2024-11-19 05:13:34,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:13:34,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 05:13:34,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:13:34,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 05:13:34,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 05:13:34,386 INFO L87 Difference]: Start difference. First operand 1609 states and 2153 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:13:34,659 INFO L93 Difference]: Finished difference Result 1767 states and 2364 transitions. [2024-11-19 05:13:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 05:13:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-19 05:13:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:13:34,668 INFO L225 Difference]: With dead ends: 1767 [2024-11-19 05:13:34,668 INFO L226 Difference]: Without dead ends: 1618 [2024-11-19 05:13:34,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 05:13:34,670 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 16 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 05:13:34,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1307 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 05:13:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-11-19 05:13:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1612. [2024-11-19 05:13:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1590 states have (on average 1.3345911949685534) internal successors, (2122), 1596 states have internal predecessors, (2122), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 05:13:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2156 transitions. [2024-11-19 05:13:34,730 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2156 transitions. Word has length 851 [2024-11-19 05:13:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:13:34,731 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2156 transitions. [2024-11-19 05:13:34,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:13:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2156 transitions. [2024-11-19 05:13:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-19 05:13:34,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:13:34,739 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:13:34,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:13:34,739 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:13:34,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:13:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2004413445, now seen corresponding path program 1 times [2024-11-19 05:13:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:13:34,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572270608] [2024-11-19 05:13:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:13:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms