./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.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_BER_test9-1.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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:08:01,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:08:01,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 05:08:01,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:08:01,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:08:01,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:08:01,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:08:01,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:08:01,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 05:08:01,583 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 05:08:01,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:08:01,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:08:01,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:08:01,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:08:01,587 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:08:01,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:08:01,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:08:01,588 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:08:01,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:08:01,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:08:01,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:08:01,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:08:01,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:08:01,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:08:01,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:08:01,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:08:01,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:08:01,593 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:08:01,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:08:01,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:08:01,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 05:08:01,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:08:01,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:08:01,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:08:01,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:08:01,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:08:01,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:08:01,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:08:01,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:08:01,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:08:01,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:08:01,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:08:01,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2024-11-19 05:08:01,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:08:01,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:08:01,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:08:01,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:08:01,885 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:08:01,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2024-11-19 05:08:03,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:08:03,820 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:08:03,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2024-11-19 05:08:03,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd6cece38/38c2d065a60843aeaac1e16e8ae5f7b2/FLAGfd2529f2d [2024-11-19 05:08:03,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd6cece38/38c2d065a60843aeaac1e16e8ae5f7b2 [2024-11-19 05:08:03,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:08:03,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:08:03,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:08:03,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:08:03,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:08:03,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:03" (1/1) ... [2024-11-19 05:08:03,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108196b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:03, skipping insertion in model container [2024-11-19 05:08:03,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:03" (1/1) ... [2024-11-19 05:08:03,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:08:04,511 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_BER_test9-1.i[33021,33034] [2024-11-19 05:08:04,732 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_BER_test9-1.i[84583,84596] [2024-11-19 05:08:04,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:08:04,752 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:08:04,795 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_BER_test9-1.i[33021,33034] [2024-11-19 05:08:04,898 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_BER_test9-1.i[84583,84596] [2024-11-19 05:08:04,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:08:04,937 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:08:04,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04 WrapperNode [2024-11-19 05:08:04,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:08:04,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:08:04,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:08:04,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:08:04,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:04,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,151 INFO L138 Inliner]: procedures = 177, calls = 722, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3282 [2024-11-19 05:08:05,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:08:05,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:08:05,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:08:05,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:08:05,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,243 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 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, 42, 4]. [2024-11-19 05:08:05,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:08:05,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:08:05,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:08:05,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:08:05,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (1/1) ... [2024-11-19 05:08:05,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:08:05,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:08:05,431 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 05:08:05,433 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 05:08:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 05:08:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 05:08:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 05:08:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 05:08:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 05:08:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 05:08:05,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 05:08:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 05:08:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:08:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 05:08:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 05:08:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 05:08:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 05:08:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 05:08:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:08:05,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:08:05,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:08:05,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:08:08,251 INFO L? ?]: Removed 797 outVars from TransFormulas that were not future-live. [2024-11-19 05:08:08,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:08:08,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:08:08,289 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-19 05:08:08,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:08 BoogieIcfgContainer [2024-11-19 05:08:08,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:08:08,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:08:08,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:08:08,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:08:08,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:08:03" (1/3) ... [2024-11-19 05:08:08,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db66685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:08:08, skipping insertion in model container [2024-11-19 05:08:08,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:04" (2/3) ... [2024-11-19 05:08:08,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db66685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:08:08, skipping insertion in model container [2024-11-19 05:08:08,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:08" (3/3) ... [2024-11-19 05:08:08,301 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2024-11-19 05:08:08,317 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:08:08,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 05:08:08,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:08:08,428 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;@5bb697a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:08:08,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 05:08:08,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 1371 states, 863 states have (on average 1.8389339513325609) internal successors, (1587), 1365 states have internal predecessors, (1587), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:08:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 05:08:08,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:08,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:08:08,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:08,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1749759959, now seen corresponding path program 1 times [2024-11-19 05:08:08,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676256654] [2024-11-19 05:08:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:08,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:08,642 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 05:08:08,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:08,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676256654] [2024-11-19 05:08:08,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676256654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:08,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:08,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:08:08,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136641264] [2024-11-19 05:08:08,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:08,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:08:08,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:08:08,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:08:08,681 INFO L87 Difference]: Start difference. First operand has 1371 states, 863 states have (on average 1.8389339513325609) internal successors, (1587), 1365 states have internal predecessors, (1587), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) 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 05:08:08,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:08,872 INFO L93 Difference]: Finished difference Result 2740 states and 5684 transitions. [2024-11-19 05:08:08,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:08:08,874 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 05:08:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:08,917 INFO L225 Difference]: With dead ends: 2740 [2024-11-19 05:08:08,917 INFO L226 Difference]: Without dead ends: 1367 [2024-11-19 05:08:08,933 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 05:08:08,936 INFO L432 NwaCegarLoop]: 2533 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, 2533 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 05:08:08,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 05:08:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-19 05:08:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2024-11-19 05:08:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 860 states have (on average 1.7709302325581395) internal successors, (1523), 1361 states have internal predecessors, (1523), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:08:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 2529 transitions. [2024-11-19 05:08:09,323 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 2529 transitions. Word has length 9 [2024-11-19 05:08:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:09,323 INFO L471 AbstractCegarLoop]: Abstraction has 1367 states and 2529 transitions. [2024-11-19 05:08:09,323 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 05:08:09,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 2529 transitions. [2024-11-19 05:08:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 05:08:09,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:09,331 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 05:08:09,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:08:09,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:09,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:09,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2144823555, now seen corresponding path program 1 times [2024-11-19 05:08:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:09,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666035559] [2024-11-19 05:08:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:09,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:09,840 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 05:08:09,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:09,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666035559] [2024-11-19 05:08:09,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666035559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:09,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:09,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:08:09,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237933730] [2024-11-19 05:08:09,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:09,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:08:09,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:09,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:08:09,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:08:09,846 INFO L87 Difference]: Start difference. First operand 1367 states and 2529 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 05:08:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:10,754 INFO L93 Difference]: Finished difference Result 3887 states and 7286 transitions. [2024-11-19 05:08:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 05:08:10,755 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 05:08:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:10,776 INFO L225 Difference]: With dead ends: 3887 [2024-11-19 05:08:10,776 INFO L226 Difference]: Without dead ends: 2721 [2024-11-19 05:08:10,783 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 05:08:10,784 INFO L432 NwaCegarLoop]: 2755 mSDtfsCounter, 1508 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:10,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 7514 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 05:08:10,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2024-11-19 05:08:11,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1369. [2024-11-19 05:08:11,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 862 states have (on average 1.7691415313225058) internal successors, (1525), 1363 states have internal predecessors, (1525), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:08:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2531 transitions. [2024-11-19 05:08:11,203 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2531 transitions. Word has length 64 [2024-11-19 05:08:11,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:11,203 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 2531 transitions. [2024-11-19 05:08:11,203 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 05:08:11,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2531 transitions. [2024-11-19 05:08:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 05:08:11,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:11,210 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 05:08:11,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:08:11,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:11,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:11,215 INFO L85 PathProgramCache]: Analyzing trace with hash 799809380, now seen corresponding path program 1 times [2024-11-19 05:08:11,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:11,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157913805] [2024-11-19 05:08:11,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:11,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:11,618 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 05:08:11,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157913805] [2024-11-19 05:08:11,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157913805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:11,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:11,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:08:11,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755571946] [2024-11-19 05:08:11,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:11,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:08:11,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:11,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:08:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:08:11,623 INFO L87 Difference]: Start difference. First operand 1369 states and 2531 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 05:08:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:11,777 INFO L93 Difference]: Finished difference Result 2692 states and 4992 transitions. [2024-11-19 05:08:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:08:11,778 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 05:08:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:11,791 INFO L225 Difference]: With dead ends: 2692 [2024-11-19 05:08:11,791 INFO L226 Difference]: Without dead ends: 1327 [2024-11-19 05:08:11,798 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 05:08:11,801 INFO L432 NwaCegarLoop]: 2427 mSDtfsCounter, 30 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7262 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 05:08:11,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7262 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:08:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-19 05:08:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1327. [2024-11-19 05:08:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 820 states have (on average 1.7658536585365854) internal successors, (1448), 1321 states have internal predecessors, (1448), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:08:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2454 transitions. [2024-11-19 05:08:11,942 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2454 transitions. Word has length 140 [2024-11-19 05:08:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:11,942 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2454 transitions. [2024-11-19 05:08:11,943 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 05:08:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2454 transitions. [2024-11-19 05:08:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 05:08:11,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:11,948 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 05:08:11,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:08:11,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:11,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1221636368, now seen corresponding path program 1 times [2024-11-19 05:08:11,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314678544] [2024-11-19 05:08:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:12,120 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 05:08:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:12,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314678544] [2024-11-19 05:08:12,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314678544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:12,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:12,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:08:12,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437844132] [2024-11-19 05:08:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:12,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:08:12,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:12,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:08:12,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:08:12,123 INFO L87 Difference]: Start difference. First operand 1327 states and 2454 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 05:08:12,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:12,283 INFO L93 Difference]: Finished difference Result 3875 states and 7228 transitions. [2024-11-19 05:08:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:08:12,284 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 05:08:12,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:12,304 INFO L225 Difference]: With dead ends: 3875 [2024-11-19 05:08:12,304 INFO L226 Difference]: Without dead ends: 2552 [2024-11-19 05:08:12,311 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 05:08:12,312 INFO L432 NwaCegarLoop]: 2900 mSDtfsCounter, 1261 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:12,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 5332 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 05:08:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-19 05:08:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-11-19 05:08:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 1543 states have (on average 1.7945560596241088) internal successors, (2769), 2544 states have internal predecessors, (2769), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-19 05:08:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 4775 transitions. [2024-11-19 05:08:12,651 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 4775 transitions. Word has length 140 [2024-11-19 05:08:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:12,653 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 4775 transitions. [2024-11-19 05:08:12,653 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 05:08:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 4775 transitions. [2024-11-19 05:08:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 05:08:12,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:12,659 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 05:08:12,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:08:12,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:12,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:12,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2036857608, now seen corresponding path program 1 times [2024-11-19 05:08:12,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:12,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096911646] [2024-11-19 05:08:12,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:12,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:13,078 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 05:08:13,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:13,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096911646] [2024-11-19 05:08:13,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096911646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:13,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:13,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:08:13,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087486770] [2024-11-19 05:08:13,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:13,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:08:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:13,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:08:13,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:08:13,084 INFO L87 Difference]: Start difference. First operand 2550 states and 4775 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 05:08:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:13,251 INFO L93 Difference]: Finished difference Result 4767 states and 9085 transitions. [2024-11-19 05:08:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:08:13,252 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 05:08:13,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:13,275 INFO L225 Difference]: With dead ends: 4767 [2024-11-19 05:08:13,275 INFO L226 Difference]: Without dead ends: 2466 [2024-11-19 05:08:13,287 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 05:08:13,288 INFO L432 NwaCegarLoop]: 2344 mSDtfsCounter, 30 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7013 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 05:08:13,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7013 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:08:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2024-11-19 05:08:13,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2466. [2024-11-19 05:08:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 1459 states have (on average 1.792323509252913) internal successors, (2615), 2460 states have internal predecessors, (2615), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-19 05:08:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 4621 transitions. [2024-11-19 05:08:13,583 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 4621 transitions. Word has length 155 [2024-11-19 05:08:13,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:13,584 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 4621 transitions. [2024-11-19 05:08:13,584 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 05:08:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 4621 transitions. [2024-11-19 05:08:13,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 05:08:13,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:13,586 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 05:08:13,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:08:13,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:13,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:13,587 INFO L85 PathProgramCache]: Analyzing trace with hash 865343484, now seen corresponding path program 1 times [2024-11-19 05:08:13,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:13,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592836486] [2024-11-19 05:08:13,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:13,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:13,891 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 05:08:13,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:13,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592836486] [2024-11-19 05:08:13,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592836486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:13,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:13,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:08:13,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552384373] [2024-11-19 05:08:13,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:13,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 05:08:13,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:13,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 05:08:13,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:08:13,893 INFO L87 Difference]: Start difference. First operand 2466 states and 4621 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 05:08:15,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:15,701 INFO L93 Difference]: Finished difference Result 4920 states and 9226 transitions. [2024-11-19 05:08:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:08:15,702 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 05:08:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:15,725 INFO L225 Difference]: With dead ends: 4920 [2024-11-19 05:08:15,726 INFO L226 Difference]: Without dead ends: 2545 [2024-11-19 05:08:15,739 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 05:08:15,742 INFO L432 NwaCegarLoop]: 2690 mSDtfsCounter, 3770 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4271 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:15,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4271 Valid, 5758 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 05:08:15,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-11-19 05:08:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1372. [2024-11-19 05:08:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 865 states have (on average 1.7190751445086705) internal successors, (1487), 1366 states have internal predecessors, (1487), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:08:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 2493 transitions. [2024-11-19 05:08:16,059 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 2493 transitions. Word has length 155 [2024-11-19 05:08:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:16,060 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 2493 transitions. [2024-11-19 05:08:16,061 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 05:08:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 2493 transitions. [2024-11-19 05:08:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-19 05:08:16,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:16,063 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 05:08:16,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:08:16,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:16,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1967797584, now seen corresponding path program 1 times [2024-11-19 05:08:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:16,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933790245] [2024-11-19 05:08:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:16,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:16,978 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 05:08:16,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:16,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933790245] [2024-11-19 05:08:16,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933790245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:08:16,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017741418] [2024-11-19 05:08:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:16,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:08:16,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:08:16,982 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 05:08:16,984 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 05:08:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:17,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 05:08:17,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:08:17,403 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 11 treesize of output 7 [2024-11-19 05:08:17,632 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 19 treesize of output 11 [2024-11-19 05:08:17,658 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 05:08:17,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:08:17,861 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 05:08:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017741418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:08:17,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:08:17,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 12 [2024-11-19 05:08:17,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638738425] [2024-11-19 05:08:17,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:08:17,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 05:08:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:17,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 05:08:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-19 05:08:17,864 INFO L87 Difference]: Start difference. First operand 1372 states and 2493 transitions. Second operand has 12 states, 12 states have (on average 27.25) internal successors, (327), 12 states have internal predecessors, (327), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 05:08:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:23,477 INFO L93 Difference]: Finished difference Result 5225 states and 9629 transitions. [2024-11-19 05:08:23,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 05:08:23,477 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 27.25) internal successors, (327), 12 states have internal predecessors, (327), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 165 [2024-11-19 05:08:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:23,503 INFO L225 Difference]: With dead ends: 5225 [2024-11-19 05:08:23,503 INFO L226 Difference]: Without dead ends: 4101 [2024-11-19 05:08:23,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 322 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-19 05:08:23,509 INFO L432 NwaCegarLoop]: 2028 mSDtfsCounter, 4948 mSDsluCounter, 11587 mSDsCounter, 0 mSdLazyCounter, 5628 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 13615 SdHoareTripleChecker+Invalid, 6135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 5628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:23,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5952 Valid, 13615 Invalid, 6135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [507 Valid, 5628 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-19 05:08:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2024-11-19 05:08:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 1719. [2024-11-19 05:08:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1208 states have (on average 1.609271523178808) internal successors, (1944), 1709 states have internal predecessors, (1944), 506 states have call successors, (506), 3 states have call predecessors, (506), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2024-11-19 05:08:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2956 transitions. [2024-11-19 05:08:23,913 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2956 transitions. Word has length 165 [2024-11-19 05:08:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:23,914 INFO L471 AbstractCegarLoop]: Abstraction has 1719 states and 2956 transitions. [2024-11-19 05:08:23,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.25) internal successors, (327), 12 states have internal predecessors, (327), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 05:08:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2956 transitions. [2024-11-19 05:08:23,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-19 05:08:23,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:23,920 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 05:08:23,940 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 05:08:24,123 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 05:08:24,124 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:24,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash -386748745, now seen corresponding path program 1 times [2024-11-19 05:08:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:24,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003924564] [2024-11-19 05:08:24,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:24,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:27,708 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 05:08:27,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003924564] [2024-11-19 05:08:27,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003924564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:08:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559905765] [2024-11-19 05:08:27,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:27,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:08:27,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:08:27,712 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 05:08:27,713 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 05:08:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:28,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 05:08:28,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:08:28,381 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 11 treesize of output 7 [2024-11-19 05:08:28,571 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 19 treesize of output 11 [2024-11-19 05:08:28,689 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 19 treesize of output 11 [2024-11-19 05:08:28,805 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 19 treesize of output 11 [2024-11-19 05:08:28,922 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 19 treesize of output 11 [2024-11-19 05:08:28,939 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 05:08:28,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:08:29,455 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 05:08:29,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559905765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:08:29,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:08:29,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 24 [2024-11-19 05:08:29,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532997587] [2024-11-19 05:08:29,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:08:29,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 05:08:29,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:29,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 05:08:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2024-11-19 05:08:29,461 INFO L87 Difference]: Start difference. First operand 1719 states and 2956 transitions. Second operand has 24 states, 24 states have (on average 42.125) internal successors, (1011), 24 states have internal predecessors, (1011), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 05:08:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:51,364 INFO L93 Difference]: Finished difference Result 10557 states and 19414 transitions. [2024-11-19 05:08:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 05:08:51,364 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 42.125) internal successors, (1011), 24 states have internal predecessors, (1011), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 393 [2024-11-19 05:08:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:51,425 INFO L225 Difference]: With dead ends: 10557 [2024-11-19 05:08:51,425 INFO L226 Difference]: Without dead ends: 9433 [2024-11-19 05:08:51,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 775 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=738, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 05:08:51,435 INFO L432 NwaCegarLoop]: 6863 mSDtfsCounter, 16259 mSDsluCounter, 45701 mSDsCounter, 0 mSdLazyCounter, 26595 mSolverCounterSat, 3019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19269 SdHoareTripleChecker+Valid, 52564 SdHoareTripleChecker+Invalid, 29614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3019 IncrementalHoareTripleChecker+Valid, 26595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:51,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19269 Valid, 52564 Invalid, 29614 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3019 Valid, 26595 Invalid, 0 Unknown, 0 Unchecked, 20.2s Time] [2024-11-19 05:08:51,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9433 states. [2024-11-19 05:08:52,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9433 to 2583. [2024-11-19 05:08:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2066 states have (on average 1.4956437560503388) internal successors, (3090), 2567 states have internal predecessors, (3090), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:08:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 4114 transitions. [2024-11-19 05:08:52,384 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 4114 transitions. Word has length 393 [2024-11-19 05:08:52,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:52,385 INFO L471 AbstractCegarLoop]: Abstraction has 2583 states and 4114 transitions. [2024-11-19 05:08:52,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 42.125) internal successors, (1011), 24 states have internal predecessors, (1011), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 05:08:52,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 4114 transitions. [2024-11-19 05:08:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-19 05:08:52,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:52,407 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 05:08:52,432 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 05:08:52,607 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 05:08:52,608 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:52,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1177753669, now seen corresponding path program 2 times [2024-11-19 05:08:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:52,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322231099] [2024-11-19 05:08:52,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:08:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:52,940 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:08:52,941 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:08:53,270 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 05:08:53,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:53,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322231099] [2024-11-19 05:08:53,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322231099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:53,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:53,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 05:08:53,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314634040] [2024-11-19 05:08:53,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:53,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 05:08:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:53,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 05:08:53,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:08:53,276 INFO L87 Difference]: Start difference. First operand 2583 states and 4114 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 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 05:08:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:53,974 INFO L93 Difference]: Finished difference Result 3721 states and 6296 transitions. [2024-11-19 05:08:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:08:53,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 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 05:08:53,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:53,994 INFO L225 Difference]: With dead ends: 3721 [2024-11-19 05:08:53,996 INFO L226 Difference]: Without dead ends: 2598 [2024-11-19 05:08:54,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 05:08:54,005 INFO L432 NwaCegarLoop]: 2347 mSDtfsCounter, 52 mSDsluCounter, 11376 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 13723 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:54,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 13723 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 05:08:54,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2024-11-19 05:08:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2594. [2024-11-19 05:08:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2077 states have (on average 1.4930187770823302) internal successors, (3101), 2578 states have internal predecessors, (3101), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:08:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 4125 transitions. [2024-11-19 05:08:54,278 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 4125 transitions. Word has length 849 [2024-11-19 05:08:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:54,280 INFO L471 AbstractCegarLoop]: Abstraction has 2594 states and 4125 transitions. [2024-11-19 05:08:54,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 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 05:08:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 4125 transitions. [2024-11-19 05:08:54,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-19 05:08:54,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:54,299 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 05:08:54,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:08:54,300 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:54,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:54,300 INFO L85 PathProgramCache]: Analyzing trace with hash -65268636, now seen corresponding path program 1 times [2024-11-19 05:08:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:54,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028972885] [2024-11-19 05:08:54,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:54,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:08:57,509 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 05:08:57,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:08:57,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028972885] [2024-11-19 05:08:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028972885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:08:57,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:08:57,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 05:08:57,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646419043] [2024-11-19 05:08:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:08:57,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 05:08:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:08:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 05:08:57,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 05:08:57,513 INFO L87 Difference]: Start difference. First operand 2594 states and 4125 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 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 05:08:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:08:57,972 INFO L93 Difference]: Finished difference Result 3733 states and 6305 transitions. [2024-11-19 05:08:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 05:08:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 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 05:08:57,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:08:57,993 INFO L225 Difference]: With dead ends: 3733 [2024-11-19 05:08:57,993 INFO L226 Difference]: Without dead ends: 2599 [2024-11-19 05:08:58,000 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 05:08:58,001 INFO L432 NwaCegarLoop]: 2354 mSDtfsCounter, 21 mSDsluCounter, 9109 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 11463 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:08:58,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 11463 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:08:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-19 05:08:58,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2598. [2024-11-19 05:08:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2081 states have (on average 1.4925516578567997) internal successors, (3106), 2582 states have internal predecessors, (3106), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:08:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 4130 transitions. [2024-11-19 05:08:58,275 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 4130 transitions. Word has length 850 [2024-11-19 05:08:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:08:58,277 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 4130 transitions. [2024-11-19 05:08:58,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 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 05:08:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 4130 transitions. [2024-11-19 05:08:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-19 05:08:58,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:08:58,298 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 05:08:58,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:08:58,299 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:08:58,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:08:58,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1296354824, now seen corresponding path program 1 times [2024-11-19 05:08:58,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:08:58,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417686641] [2024-11-19 05:08:58,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:08:58,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:08:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:09:00,993 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 05:09:00,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:09:00,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417686641] [2024-11-19 05:09:00,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417686641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:09:00,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:09:00,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 05:09:00,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081805199] [2024-11-19 05:09:00,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:09:00,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 05:09:00,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:09:00,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 05:09:00,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:09:00,996 INFO L87 Difference]: Start difference. First operand 2598 states and 4130 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 05:09:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:09:01,438 INFO L93 Difference]: Finished difference Result 3744 states and 6319 transitions. [2024-11-19 05:09:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:09:01,438 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 05:09:01,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:09:01,452 INFO L225 Difference]: With dead ends: 3744 [2024-11-19 05:09:01,452 INFO L226 Difference]: Without dead ends: 2606 [2024-11-19 05:09:01,458 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 05:09:01,460 INFO L432 NwaCegarLoop]: 2347 mSDtfsCounter, 24 mSDsluCounter, 13661 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 16008 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:09:01,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 16008 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:09:01,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2024-11-19 05:09:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2598. [2024-11-19 05:09:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2081 states have (on average 1.4925516578567997) internal successors, (3106), 2582 states have internal predecessors, (3106), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:09:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 4130 transitions. [2024-11-19 05:09:01,754 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 4130 transitions. Word has length 850 [2024-11-19 05:09:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:09:01,755 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 4130 transitions. [2024-11-19 05:09:01,756 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 05:09:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 4130 transitions. [2024-11-19 05:09:01,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-19 05:09:01,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:09:01,764 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 05:09:01,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:09:01,765 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:09:01,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:09:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 546779409, now seen corresponding path program 1 times [2024-11-19 05:09:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:09:01,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163286566] [2024-11-19 05:09:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:09:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:09:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:09:04,089 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 05:09:04,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:09:04,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163286566] [2024-11-19 05:09:04,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163286566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:09:04,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:09:04,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:09:04,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163472601] [2024-11-19 05:09:04,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:09:04,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:09:04,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:09:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:09:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:09:04,093 INFO L87 Difference]: Start difference. First operand 2598 states and 4130 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 05:09:04,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:09:04,629 INFO L93 Difference]: Finished difference Result 3747 states and 6324 transitions. [2024-11-19 05:09:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:09:04,630 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 05:09:04,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:09:04,642 INFO L225 Difference]: With dead ends: 3747 [2024-11-19 05:09:04,642 INFO L226 Difference]: Without dead ends: 2609 [2024-11-19 05:09:04,647 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 05:09:04,648 INFO L432 NwaCegarLoop]: 2348 mSDtfsCounter, 32 mSDsluCounter, 16019 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 18367 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:09:04,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 18367 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:09:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2024-11-19 05:09:04,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2606. [2024-11-19 05:09:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2089 states have (on average 1.4916227860220201) internal successors, (3116), 2590 states have internal predecessors, (3116), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:09:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 4140 transitions. [2024-11-19 05:09:04,953 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 4140 transitions. Word has length 851 [2024-11-19 05:09:04,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:09:04,954 INFO L471 AbstractCegarLoop]: Abstraction has 2606 states and 4140 transitions. [2024-11-19 05:09:04,954 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 05:09:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 4140 transitions. [2024-11-19 05:09:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-19 05:09:04,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:09:04,962 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 05:09:04,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:09:04,962 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:09:04,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:09:04,963 INFO L85 PathProgramCache]: Analyzing trace with hash -973442373, now seen corresponding path program 1 times [2024-11-19 05:09:04,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:09:04,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492113542] [2024-11-19 05:09:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:09:04,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:09:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat