./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_test6-2.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 d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:08:08,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:08:08,704 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 17:08:08,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:08:08,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:08:08,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:08:08,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:08:08,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:08:08,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 17:08:08,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 17:08:08,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:08:08,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:08:08,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:08:08,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:08:08,755 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:08:08,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:08:08,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:08:08,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:08:08,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:08:08,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:08:08,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:08:08,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:08:08,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:08:08,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:08:08,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:08:08,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:08:08,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:08:08,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:08:08,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:08:08,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:08:08,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 17:08:08,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:08:08,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:08:08,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:08:08,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:08:08,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:08:08,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:08:08,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:08:08,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:08:08,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:08:08,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:08:08,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:08:08,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2024-11-22 17:08:08,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:08:09,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:08:09,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:08:09,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:08:09,015 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:08:09,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-11-22 17:08:10,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:08:10,638 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:08:10,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-11-22 17:08:10,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36920af22/32bd3983641a431aab84e28a99a091e7/FLAGd9f92d121 [2024-11-22 17:08:10,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36920af22/32bd3983641a431aab84e28a99a091e7 [2024-11-22 17:08:10,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:08:10,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:08:10,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:08:10,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:08:10,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:08:10,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:08:10" (1/1) ... [2024-11-22 17:08:10,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29126ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:10, skipping insertion in model container [2024-11-22 17:08:10,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:08:10" (1/1) ... [2024-11-22 17:08:10,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:08:11,154 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_test6-2.i[44118,44131] [2024-11-22 17:08:11,171 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_test6-2.i[44660,44673] [2024-11-22 17:08:11,342 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_test6-2.i[56247,56260] [2024-11-22 17:08:11,343 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_test6-2.i[56368,56381] [2024-11-22 17:08:11,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:08:11,369 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:08:11,395 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_test6-2.i[44118,44131] [2024-11-22 17:08:11,397 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_test6-2.i[44660,44673] [2024-11-22 17:08:11,430 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_test6-2.i[56247,56260] [2024-11-22 17:08:11,431 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_test6-2.i[56368,56381] [2024-11-22 17:08:11,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:08:11,501 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:08:11,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11 WrapperNode [2024-11-22 17:08:11,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:08:11,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:08:11,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:08:11,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:08:11,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,609 INFO L138 Inliner]: procedures = 282, calls = 349, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1647 [2024-11-22 17:08:11,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:08:11,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:08:11,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:08:11,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:08:11,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,714 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 34, 12, 270]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 62 writes are split as follows [0, 4, 1, 57]. [2024-11-22 17:08:11,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:08:11,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:08:11,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:08:11,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:08:11,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (1/1) ... [2024-11-22 17:08:11,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:08:11,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:08:11,845 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) [2024-11-22 17:08:11,855 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 [2024-11-22 17:08:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:08:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 17:08:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 17:08:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-22 17:08:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 17:08:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 17:08:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 17:08:11,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 17:08:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 17:08:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 17:08:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 17:08:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 17:08:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 17:08:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:08:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-22 17:08:11,891 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-22 17:08:11,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 17:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 17:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 17:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 17:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-22 17:08:11,892 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-22 17:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 17:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 17:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 17:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 17:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:08:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:08:12,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:08:12,072 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:08:13,230 INFO L? ?]: Removed 364 outVars from TransFormulas that were not future-live. [2024-11-22 17:08:13,230 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:08:13,255 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:08:13,256 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-22 17:08:13,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:08:13 BoogieIcfgContainer [2024-11-22 17:08:13,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:08:13,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:08:13,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:08:13,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:08:13,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:08:10" (1/3) ... [2024-11-22 17:08:13,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551283c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:08:13, skipping insertion in model container [2024-11-22 17:08:13,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:08:11" (2/3) ... [2024-11-22 17:08:13,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551283c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:08:13, skipping insertion in model container [2024-11-22 17:08:13,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:08:13" (3/3) ... [2024-11-22 17:08:13,264 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2024-11-22 17:08:13,277 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:08:13,277 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 17:08:13,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:08:13,338 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;@3c37aaeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:08:13,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 17:08:13,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 474 states, 450 states have (on average 1.5977777777777777) internal successors, (719), 454 states have internal predecessors, (719), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 17:08:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 17:08:13,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:13,349 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:13,349 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:13,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:13,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1705359720, now seen corresponding path program 1 times [2024-11-22 17:08:13,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:13,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655095466] [2024-11-22 17:08:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:13,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655095466] [2024-11-22 17:08:13,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655095466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:13,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:13,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:08:13,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775149029] [2024-11-22 17:08:13,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:13,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 17:08:13,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:13,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 17:08:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 17:08:13,560 INFO L87 Difference]: Start difference. First operand has 474 states, 450 states have (on average 1.5977777777777777) internal successors, (719), 454 states have internal predecessors, (719), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-22 17:08:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:13,632 INFO L93 Difference]: Finished difference Result 943 states and 1508 transitions. [2024-11-22 17:08:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 17:08:13,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-22 17:08:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:13,645 INFO L225 Difference]: With dead ends: 943 [2024-11-22 17:08:13,646 INFO L226 Difference]: Without dead ends: 467 [2024-11-22 17:08:13,651 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 [2024-11-22 17:08:13,656 INFO L432 NwaCegarLoop]: 667 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, 667 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 [2024-11-22 17:08:13,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 17:08:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-22 17:08:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-22 17:08:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 444 states have (on average 1.4256756756756757) internal successors, (633), 448 states have internal predecessors, (633), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 663 transitions. [2024-11-22 17:08:13,705 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 663 transitions. Word has length 8 [2024-11-22 17:08:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:13,705 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 663 transitions. [2024-11-22 17:08:13,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-22 17:08:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 663 transitions. [2024-11-22 17:08:13,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 17:08:13,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:13,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:13,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:08:13,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:13,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:13,707 INFO L85 PathProgramCache]: Analyzing trace with hash -68909494, now seen corresponding path program 1 times [2024-11-22 17:08:13,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:13,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379464705] [2024-11-22 17:08:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:13,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:13,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379464705] [2024-11-22 17:08:13,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379464705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:13,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:13,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:08:13,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435669281] [2024-11-22 17:08:13,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:13,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:08:13,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:08:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:08:13,871 INFO L87 Difference]: Start difference. First operand 467 states and 663 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-22 17:08:14,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:14,022 INFO L93 Difference]: Finished difference Result 1158 states and 1654 transitions. [2024-11-22 17:08:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 17:08:14,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-22 17:08:14,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:14,026 INFO L225 Difference]: With dead ends: 1158 [2024-11-22 17:08:14,026 INFO L226 Difference]: Without dead ends: 907 [2024-11-22 17:08:14,027 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 [2024-11-22 17:08:14,028 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 606 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:14,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 2113 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:08:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-22 17:08:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 469. [2024-11-22 17:08:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 446 states have (on average 1.4237668161434978) internal successors, (635), 450 states have internal predecessors, (635), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 665 transitions. [2024-11-22 17:08:14,056 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 665 transitions. Word has length 10 [2024-11-22 17:08:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:14,057 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 665 transitions. [2024-11-22 17:08:14,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-22 17:08:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 665 transitions. [2024-11-22 17:08:14,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 17:08:14,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:14,059 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, 1, 1] [2024-11-22 17:08:14,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:08:14,059 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:14,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:14,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2094545925, now seen corresponding path program 1 times [2024-11-22 17:08:14,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:14,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142900424] [2024-11-22 17:08:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:14,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:14,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142900424] [2024-11-22 17:08:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142900424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:14,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:14,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:08:14,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835319443] [2024-11-22 17:08:14,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:14,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:08:14,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:14,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:08:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:08:14,325 INFO L87 Difference]: Start difference. First operand 469 states and 665 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:14,397 INFO L93 Difference]: Finished difference Result 892 states and 1260 transitions. [2024-11-22 17:08:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 17:08:14,398 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-22 17:08:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:14,400 INFO L225 Difference]: With dead ends: 892 [2024-11-22 17:08:14,400 INFO L226 Difference]: Without dead ends: 427 [2024-11-22 17:08:14,401 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 [2024-11-22 17:08:14,401 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 36 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:14,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1660 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:08:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-22 17:08:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-22 17:08:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 404 states have (on average 1.381188118811881) internal successors, (558), 408 states have internal predecessors, (558), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 588 transitions. [2024-11-22 17:08:14,414 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 588 transitions. Word has length 66 [2024-11-22 17:08:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:14,414 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 588 transitions. [2024-11-22 17:08:14,414 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 588 transitions. [2024-11-22 17:08:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 17:08:14,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:14,416 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, 1, 1] [2024-11-22 17:08:14,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:08:14,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:14,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:14,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1762783129, now seen corresponding path program 1 times [2024-11-22 17:08:14,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:14,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702958517] [2024-11-22 17:08:14,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:14,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:14,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:14,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:14,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702958517] [2024-11-22 17:08:14,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702958517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:14,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:14,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:08:14,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117928609] [2024-11-22 17:08:14,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:14,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:08:14,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:08:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:08:14,572 INFO L87 Difference]: Start difference. First operand 427 states and 588 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:14,683 INFO L93 Difference]: Finished difference Result 844 states and 1166 transitions. [2024-11-22 17:08:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 17:08:14,684 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-22 17:08:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:14,688 INFO L225 Difference]: With dead ends: 844 [2024-11-22 17:08:14,688 INFO L226 Difference]: Without dead ends: 421 [2024-11-22 17:08:14,689 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 [2024-11-22 17:08:14,690 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 9 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:14,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1661 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:08:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-22 17:08:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-22 17:08:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 398 states have (on average 1.3768844221105527) internal successors, (548), 402 states have internal predecessors, (548), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 578 transitions. [2024-11-22 17:08:14,705 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 578 transitions. Word has length 66 [2024-11-22 17:08:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:14,705 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 578 transitions. [2024-11-22 17:08:14,706 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 578 transitions. [2024-11-22 17:08:14,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 17:08:14,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:14,709 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, 1, 1] [2024-11-22 17:08:14,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:08:14,710 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:14,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1018233745, now seen corresponding path program 1 times [2024-11-22 17:08:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080686139] [2024-11-22 17:08:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:15,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:15,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080686139] [2024-11-22 17:08:15,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080686139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:15,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:15,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 17:08:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219647182] [2024-11-22 17:08:15,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:15,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:08:15,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:15,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:08:15,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:08:15,084 INFO L87 Difference]: Start difference. First operand 421 states and 578 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:15,336 INFO L93 Difference]: Finished difference Result 843 states and 1160 transitions. [2024-11-22 17:08:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:08:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-22 17:08:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:15,340 INFO L225 Difference]: With dead ends: 843 [2024-11-22 17:08:15,341 INFO L226 Difference]: Without dead ends: 426 [2024-11-22 17:08:15,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:15,342 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 10 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:15,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2512 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 17:08:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-22 17:08:15,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 423. [2024-11-22 17:08:15,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 400 states have (on average 1.375) internal successors, (550), 404 states have internal predecessors, (550), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 580 transitions. [2024-11-22 17:08:15,352 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 580 transitions. Word has length 66 [2024-11-22 17:08:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:15,353 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 580 transitions. [2024-11-22 17:08:15,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:15,354 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 580 transitions. [2024-11-22 17:08:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 17:08:15,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:15,355 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, 1, 1, 1] [2024-11-22 17:08:15,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:08:15,356 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:15,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2097980756, now seen corresponding path program 1 times [2024-11-22 17:08:15,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:15,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875975370] [2024-11-22 17:08:15,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:15,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:15,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:15,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:15,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875975370] [2024-11-22 17:08:15,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875975370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:15,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:15,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:08:15,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145105693] [2024-11-22 17:08:15,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:15,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:08:15,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:15,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:08:15,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:08:15,596 INFO L87 Difference]: Start difference. First operand 423 states and 580 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:15,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:15,702 INFO L93 Difference]: Finished difference Result 842 states and 1156 transitions. [2024-11-22 17:08:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 17:08:15,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-22 17:08:15,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:15,705 INFO L225 Difference]: With dead ends: 842 [2024-11-22 17:08:15,705 INFO L226 Difference]: Without dead ends: 423 [2024-11-22 17:08:15,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:08:15,707 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 13 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:15,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1573 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:08:15,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-22 17:08:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2024-11-22 17:08:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 400 states have (on average 1.3725) internal successors, (549), 404 states have internal predecessors, (549), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 579 transitions. [2024-11-22 17:08:15,717 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 579 transitions. Word has length 67 [2024-11-22 17:08:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:15,717 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 579 transitions. [2024-11-22 17:08:15,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 579 transitions. [2024-11-22 17:08:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 17:08:15,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:15,718 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, 1, 1, 1] [2024-11-22 17:08:15,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:08:15,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:15,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash 362380824, now seen corresponding path program 1 times [2024-11-22 17:08:15,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:15,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290330957] [2024-11-22 17:08:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:15,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:15,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290330957] [2024-11-22 17:08:15,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290330957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:15,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:15,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:08:15,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255681527] [2024-11-22 17:08:15,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:15,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:08:15,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:15,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:08:15,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:15,896 INFO L87 Difference]: Start difference. First operand 423 states and 579 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:16,125 INFO L93 Difference]: Finished difference Result 847 states and 1162 transitions. [2024-11-22 17:08:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:08:16,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-22 17:08:16,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:16,128 INFO L225 Difference]: With dead ends: 847 [2024-11-22 17:08:16,128 INFO L226 Difference]: Without dead ends: 428 [2024-11-22 17:08:16,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:16,129 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 10 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:16,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3014 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 17:08:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-22 17:08:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427. [2024-11-22 17:08:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 404 states have (on average 1.3712871287128714) internal successors, (554), 408 states have internal predecessors, (554), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 584 transitions. [2024-11-22 17:08:16,137 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 584 transitions. Word has length 67 [2024-11-22 17:08:16,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:16,137 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 584 transitions. [2024-11-22 17:08:16,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 584 transitions. [2024-11-22 17:08:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 17:08:16,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:16,138 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, 1, 1, 1, 1] [2024-11-22 17:08:16,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:08:16,138 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:16,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:16,139 INFO L85 PathProgramCache]: Analyzing trace with hash 543599956, now seen corresponding path program 1 times [2024-11-22 17:08:16,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:16,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920148791] [2024-11-22 17:08:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:16,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:16,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:16,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920148791] [2024-11-22 17:08:16,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920148791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:16,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:16,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 17:08:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096623306] [2024-11-22 17:08:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:16,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:08:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:16,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:08:16,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:08:16,296 INFO L87 Difference]: Start difference. First operand 427 states and 584 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:16,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:16,455 INFO L93 Difference]: Finished difference Result 853 states and 1169 transitions. [2024-11-22 17:08:16,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:08:16,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-22 17:08:16,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:16,457 INFO L225 Difference]: With dead ends: 853 [2024-11-22 17:08:16,457 INFO L226 Difference]: Without dead ends: 430 [2024-11-22 17:08:16,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:08:16,458 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 4 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:16,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2061 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 17:08:16,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-22 17:08:16,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2024-11-22 17:08:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 407 states have (on average 1.3685503685503686) internal successors, (557), 411 states have internal predecessors, (557), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 587 transitions. [2024-11-22 17:08:16,465 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 587 transitions. Word has length 68 [2024-11-22 17:08:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:16,466 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 587 transitions. [2024-11-22 17:08:16,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 587 transitions. [2024-11-22 17:08:16,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 17:08:16,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:16,466 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, 1, 1, 1, 1] [2024-11-22 17:08:16,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:08:16,467 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:16,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:16,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2064596987, now seen corresponding path program 1 times [2024-11-22 17:08:16,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:16,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465295159] [2024-11-22 17:08:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:16,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:16,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:16,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465295159] [2024-11-22 17:08:16,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465295159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:16,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:16,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:08:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337556266] [2024-11-22 17:08:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:16,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 17:08:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 17:08:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:08:16,882 INFO L87 Difference]: Start difference. First operand 430 states and 587 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:17,226 INFO L93 Difference]: Finished difference Result 869 states and 1191 transitions. [2024-11-22 17:08:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:08:17,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-22 17:08:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:17,229 INFO L225 Difference]: With dead ends: 869 [2024-11-22 17:08:17,229 INFO L226 Difference]: Without dead ends: 443 [2024-11-22 17:08:17,230 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 [2024-11-22 17:08:17,230 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 30 mSDsluCounter, 3509 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:17,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 4065 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-22 17:08:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 440. [2024-11-22 17:08:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.369304556354916) internal successors, (571), 421 states have internal predecessors, (571), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 601 transitions. [2024-11-22 17:08:17,242 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 601 transitions. Word has length 68 [2024-11-22 17:08:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:17,242 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 601 transitions. [2024-11-22 17:08:17,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 601 transitions. [2024-11-22 17:08:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 17:08:17,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:17,245 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, 1, 1, 1, 1] [2024-11-22 17:08:17,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:08:17,245 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:17,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:17,246 INFO L85 PathProgramCache]: Analyzing trace with hash -617699308, now seen corresponding path program 1 times [2024-11-22 17:08:17,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:17,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736663905] [2024-11-22 17:08:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:17,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:17,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736663905] [2024-11-22 17:08:17,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736663905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:17,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 17:08:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768876027] [2024-11-22 17:08:17,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:17,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 17:08:17,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 17:08:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 17:08:17,606 INFO L87 Difference]: Start difference. First operand 440 states and 601 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:17,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:17,855 INFO L93 Difference]: Finished difference Result 879 states and 1203 transitions. [2024-11-22 17:08:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 17:08:17,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-22 17:08:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:17,857 INFO L225 Difference]: With dead ends: 879 [2024-11-22 17:08:17,857 INFO L226 Difference]: Without dead ends: 443 [2024-11-22 17:08:17,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 17:08:17,858 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 23 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:17,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3068 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 17:08:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-22 17:08:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-22 17:08:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 420 states have (on average 1.3666666666666667) internal successors, (574), 424 states have internal predecessors, (574), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 604 transitions. [2024-11-22 17:08:17,907 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 604 transitions. Word has length 68 [2024-11-22 17:08:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:17,907 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 604 transitions. [2024-11-22 17:08:17,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 604 transitions. [2024-11-22 17:08:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 17:08:17,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:17,908 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, 1, 1, 1, 1, 1] [2024-11-22 17:08:17,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:08:17,909 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:17,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:17,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1880623215, now seen corresponding path program 1 times [2024-11-22 17:08:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:17,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416927531] [2024-11-22 17:08:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:17,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:18,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:18,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416927531] [2024-11-22 17:08:18,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416927531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:18,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:18,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:08:18,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042327156] [2024-11-22 17:08:18,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:18,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:08:18,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:18,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:08:18,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:18,126 INFO L87 Difference]: Start difference. First operand 443 states and 604 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:18,418 INFO L93 Difference]: Finished difference Result 887 states and 1212 transitions. [2024-11-22 17:08:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:08:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 17:08:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:18,422 INFO L225 Difference]: With dead ends: 887 [2024-11-22 17:08:18,422 INFO L226 Difference]: Without dead ends: 448 [2024-11-22 17:08:18,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 17:08:18,423 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 9 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:18,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3020 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-22 17:08:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 443. [2024-11-22 17:08:18,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 420 states have (on average 1.3666666666666667) internal successors, (574), 424 states have internal predecessors, (574), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 604 transitions. [2024-11-22 17:08:18,433 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 604 transitions. Word has length 69 [2024-11-22 17:08:18,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:18,433 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 604 transitions. [2024-11-22 17:08:18,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 604 transitions. [2024-11-22 17:08:18,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 17:08:18,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:18,435 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, 1, 1, 1, 1, 1] [2024-11-22 17:08:18,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:08:18,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:18,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1143892763, now seen corresponding path program 1 times [2024-11-22 17:08:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:18,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098157580] [2024-11-22 17:08:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:18,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:18,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098157580] [2024-11-22 17:08:18,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098157580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:18,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:18,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:08:18,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802230691] [2024-11-22 17:08:18,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:18,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 17:08:18,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:18,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 17:08:18,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:08:18,842 INFO L87 Difference]: Start difference. First operand 443 states and 604 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:19,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:19,728 INFO L93 Difference]: Finished difference Result 1279 states and 1758 transitions. [2024-11-22 17:08:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:19,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-22 17:08:19,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:19,731 INFO L225 Difference]: With dead ends: 1279 [2024-11-22 17:08:19,731 INFO L226 Difference]: Without dead ends: 840 [2024-11-22 17:08:19,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:08:19,734 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 649 mSDsluCounter, 3704 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 4347 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:19,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 4347 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 17:08:19,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-22 17:08:19,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 475. [2024-11-22 17:08:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 452 states have (on average 1.3407079646017699) internal successors, (606), 456 states have internal predecessors, (606), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 636 transitions. [2024-11-22 17:08:19,748 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 636 transitions. Word has length 69 [2024-11-22 17:08:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:19,748 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 636 transitions. [2024-11-22 17:08:19,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 636 transitions. [2024-11-22 17:08:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 17:08:19,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:19,749 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, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:19,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:08:19,750 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:19,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:19,750 INFO L85 PathProgramCache]: Analyzing trace with hash -251769952, now seen corresponding path program 1 times [2024-11-22 17:08:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82598204] [2024-11-22 17:08:19,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:19,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:19,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:19,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82598204] [2024-11-22 17:08:19,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82598204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:19,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:19,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:08:19,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767417456] [2024-11-22 17:08:19,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:19,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 17:08:19,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:19,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 17:08:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:08:19,954 INFO L87 Difference]: Start difference. First operand 475 states and 636 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:20,177 INFO L93 Difference]: Finished difference Result 924 states and 1250 transitions. [2024-11-22 17:08:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:08:20,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-22 17:08:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:20,179 INFO L225 Difference]: With dead ends: 924 [2024-11-22 17:08:20,179 INFO L226 Difference]: Without dead ends: 485 [2024-11-22 17:08:20,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:08:20,181 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 16 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:20,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3109 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 17:08:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-22 17:08:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 478. [2024-11-22 17:08:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 455 states have (on average 1.3406593406593406) internal successors, (610), 459 states have internal predecessors, (610), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:20,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 640 transitions. [2024-11-22 17:08:20,190 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 640 transitions. Word has length 70 [2024-11-22 17:08:20,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:20,190 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 640 transitions. [2024-11-22 17:08:20,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 640 transitions. [2024-11-22 17:08:20,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 17:08:20,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:20,191 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, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:20,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:08:20,192 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:20,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1885470852, now seen corresponding path program 1 times [2024-11-22 17:08:20,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505904755] [2024-11-22 17:08:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:20,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:20,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505904755] [2024-11-22 17:08:20,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505904755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:20,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:20,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:08:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30007760] [2024-11-22 17:08:20,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:20,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 17:08:20,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:20,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 17:08:20,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:08:20,426 INFO L87 Difference]: Start difference. First operand 478 states and 640 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:20,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:20,819 INFO L93 Difference]: Finished difference Result 930 states and 1258 transitions. [2024-11-22 17:08:20,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:20,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-22 17:08:20,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:20,823 INFO L225 Difference]: With dead ends: 930 [2024-11-22 17:08:20,823 INFO L226 Difference]: Without dead ends: 488 [2024-11-22 17:08:20,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 17:08:20,824 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 26 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:20,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4001 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 17:08:20,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-22 17:08:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 478. [2024-11-22 17:08:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 455 states have (on average 1.3406593406593406) internal successors, (610), 459 states have internal predecessors, (610), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 640 transitions. [2024-11-22 17:08:20,836 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 640 transitions. Word has length 70 [2024-11-22 17:08:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:20,837 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 640 transitions. [2024-11-22 17:08:20,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:20,837 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 640 transitions. [2024-11-22 17:08:20,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 17:08:20,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:20,837 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:20,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:08:20,838 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:20,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:20,838 INFO L85 PathProgramCache]: Analyzing trace with hash 100457695, now seen corresponding path program 1 times [2024-11-22 17:08:20,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:20,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110177745] [2024-11-22 17:08:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:20,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:21,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:21,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110177745] [2024-11-22 17:08:21,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110177745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:21,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:21,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 17:08:21,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704060894] [2024-11-22 17:08:21,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:21,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:08:21,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:21,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:08:21,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:08:21,075 INFO L87 Difference]: Start difference. First operand 478 states and 640 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:21,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:21,427 INFO L93 Difference]: Finished difference Result 936 states and 1267 transitions. [2024-11-22 17:08:21,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:21,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-22 17:08:21,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:21,430 INFO L225 Difference]: With dead ends: 936 [2024-11-22 17:08:21,430 INFO L226 Difference]: Without dead ends: 494 [2024-11-22 17:08:21,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-22 17:08:21,432 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 22 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:21,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4056 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-22 17:08:21,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2024-11-22 17:08:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 465 states have (on average 1.3376344086021505) internal successors, (622), 469 states have internal predecessors, (622), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:21,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 652 transitions. [2024-11-22 17:08:21,443 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 652 transitions. Word has length 71 [2024-11-22 17:08:21,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:21,443 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 652 transitions. [2024-11-22 17:08:21,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 652 transitions. [2024-11-22 17:08:21,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 17:08:21,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:21,444 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:21,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:08:21,445 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:21,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1930413179, now seen corresponding path program 1 times [2024-11-22 17:08:21,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:21,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937350799] [2024-11-22 17:08:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:21,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:21,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937350799] [2024-11-22 17:08:21,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937350799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:21,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:21,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 17:08:21,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681761516] [2024-11-22 17:08:21,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:21,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:08:21,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:21,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:08:21,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:08:21,697 INFO L87 Difference]: Start difference. First operand 488 states and 652 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:22,060 INFO L93 Difference]: Finished difference Result 956 states and 1291 transitions. [2024-11-22 17:08:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-22 17:08:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:22,063 INFO L225 Difference]: With dead ends: 956 [2024-11-22 17:08:22,063 INFO L226 Difference]: Without dead ends: 504 [2024-11-22 17:08:22,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:08:22,065 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 13 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:22,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4532 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:22,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-22 17:08:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 491. [2024-11-22 17:08:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 468 states have (on average 1.3376068376068375) internal successors, (626), 472 states have internal predecessors, (626), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:22,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 656 transitions. [2024-11-22 17:08:22,077 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 656 transitions. Word has length 71 [2024-11-22 17:08:22,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:22,078 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 656 transitions. [2024-11-22 17:08:22,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 656 transitions. [2024-11-22 17:08:22,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 17:08:22,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:22,079 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:22,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:08:22,080 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:22,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:22,080 INFO L85 PathProgramCache]: Analyzing trace with hash 432360443, now seen corresponding path program 1 times [2024-11-22 17:08:22,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:22,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152652903] [2024-11-22 17:08:22,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:22,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:22,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:22,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:22,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152652903] [2024-11-22 17:08:22,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152652903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:22,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:22,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:08:22,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085961985] [2024-11-22 17:08:22,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:22,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:08:22,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:22,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:08:22,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:22,314 INFO L87 Difference]: Start difference. First operand 491 states and 656 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:22,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:22,588 INFO L93 Difference]: Finished difference Result 951 states and 1281 transitions. [2024-11-22 17:08:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:08:22,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-22 17:08:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:22,591 INFO L225 Difference]: With dead ends: 951 [2024-11-22 17:08:22,591 INFO L226 Difference]: Without dead ends: 496 [2024-11-22 17:08:22,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:22,592 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 7 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:22,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3044 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-22 17:08:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 491. [2024-11-22 17:08:22,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 468 states have (on average 1.3354700854700854) internal successors, (625), 472 states have internal predecessors, (625), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:22,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 655 transitions. [2024-11-22 17:08:22,601 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 655 transitions. Word has length 71 [2024-11-22 17:08:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:22,601 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 655 transitions. [2024-11-22 17:08:22,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 655 transitions. [2024-11-22 17:08:22,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 17:08:22,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:22,602 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:22,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:08:22,603 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:22,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:22,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2045031444, now seen corresponding path program 1 times [2024-11-22 17:08:22,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:22,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793288043] [2024-11-22 17:08:22,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:22,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:22,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:22,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793288043] [2024-11-22 17:08:22,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793288043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:22,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:22,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 17:08:22,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740213034] [2024-11-22 17:08:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:22,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 17:08:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:22,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 17:08:22,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:22,837 INFO L87 Difference]: Start difference. First operand 491 states and 655 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:23,114 INFO L93 Difference]: Finished difference Result 949 states and 1279 transitions. [2024-11-22 17:08:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:08:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-22 17:08:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:23,117 INFO L225 Difference]: With dead ends: 949 [2024-11-22 17:08:23,117 INFO L226 Difference]: Without dead ends: 494 [2024-11-22 17:08:23,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 17:08:23,119 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 4 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:23,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3003 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:23,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-22 17:08:23,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2024-11-22 17:08:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 471 states have (on average 1.3333333333333333) internal successors, (628), 475 states have internal predecessors, (628), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 658 transitions. [2024-11-22 17:08:23,132 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 658 transitions. Word has length 71 [2024-11-22 17:08:23,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:23,132 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 658 transitions. [2024-11-22 17:08:23,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:23,132 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 658 transitions. [2024-11-22 17:08:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 17:08:23,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:23,133 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:23,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 17:08:23,134 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:23,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash -665390877, now seen corresponding path program 1 times [2024-11-22 17:08:23,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12229440] [2024-11-22 17:08:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:23,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:23,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12229440] [2024-11-22 17:08:23,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12229440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:23,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:23,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 17:08:23,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157939862] [2024-11-22 17:08:23,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:23,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:08:23,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:23,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:08:23,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:08:23,596 INFO L87 Difference]: Start difference. First operand 494 states and 658 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:24,056 INFO L93 Difference]: Finished difference Result 964 states and 1298 transitions. [2024-11-22 17:08:24,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:24,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-22 17:08:24,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:24,059 INFO L225 Difference]: With dead ends: 964 [2024-11-22 17:08:24,059 INFO L226 Difference]: Without dead ends: 506 [2024-11-22 17:08:24,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:08:24,060 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 9 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:24,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4042 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 17:08:24,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-22 17:08:24,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 498. [2024-11-22 17:08:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 475 states have (on average 1.3326315789473684) internal successors, (633), 479 states have internal predecessors, (633), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 663 transitions. [2024-11-22 17:08:24,070 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 663 transitions. Word has length 72 [2024-11-22 17:08:24,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:24,071 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 663 transitions. [2024-11-22 17:08:24,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 663 transitions. [2024-11-22 17:08:24,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 17:08:24,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:24,072 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:24,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 17:08:24,072 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:24,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:24,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1263182800, now seen corresponding path program 1 times [2024-11-22 17:08:24,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:24,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082082679] [2024-11-22 17:08:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:24,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:24,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082082679] [2024-11-22 17:08:24,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082082679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:24,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:24,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 17:08:24,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853544594] [2024-11-22 17:08:24,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:24,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 17:08:24,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 17:08:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 17:08:24,331 INFO L87 Difference]: Start difference. First operand 498 states and 663 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:24,731 INFO L93 Difference]: Finished difference Result 973 states and 1308 transitions. [2024-11-22 17:08:24,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:24,732 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-22 17:08:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:24,734 INFO L225 Difference]: With dead ends: 973 [2024-11-22 17:08:24,734 INFO L226 Difference]: Without dead ends: 511 [2024-11-22 17:08:24,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 17:08:24,736 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 22 mSDsluCounter, 4526 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:24,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5082 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 17:08:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-22 17:08:24,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 501. [2024-11-22 17:08:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 478 states have (on average 1.3305439330543933) internal successors, (636), 482 states have internal predecessors, (636), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 666 transitions. [2024-11-22 17:08:24,746 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 666 transitions. Word has length 72 [2024-11-22 17:08:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:24,746 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 666 transitions. [2024-11-22 17:08:24,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 666 transitions. [2024-11-22 17:08:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 17:08:24,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:24,747 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:24,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 17:08:24,747 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:24,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:24,747 INFO L85 PathProgramCache]: Analyzing trace with hash 228654279, now seen corresponding path program 1 times [2024-11-22 17:08:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:24,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854305567] [2024-11-22 17:08:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:25,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:25,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854305567] [2024-11-22 17:08:25,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854305567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:25,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:25,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 17:08:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395685946] [2024-11-22 17:08:25,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:25,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:08:25,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:25,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:08:25,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:08:25,208 INFO L87 Difference]: Start difference. First operand 501 states and 666 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:27,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-22 17:08:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:28,273 INFO L93 Difference]: Finished difference Result 972 states and 1304 transitions. [2024-11-22 17:08:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:28,273 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-22 17:08:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:28,275 INFO L225 Difference]: With dead ends: 972 [2024-11-22 17:08:28,275 INFO L226 Difference]: Without dead ends: 507 [2024-11-22 17:08:28,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:08:28,276 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 33 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:28,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3971 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-22 17:08:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-22 17:08:28,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 502. [2024-11-22 17:08:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 479 states have (on average 1.3298538622129437) internal successors, (637), 483 states have internal predecessors, (637), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 667 transitions. [2024-11-22 17:08:28,287 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 667 transitions. Word has length 72 [2024-11-22 17:08:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:28,287 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 667 transitions. [2024-11-22 17:08:28,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 667 transitions. [2024-11-22 17:08:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 17:08:28,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:28,288 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:28,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 17:08:28,288 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:28,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1607808641, now seen corresponding path program 1 times [2024-11-22 17:08:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446136700] [2024-11-22 17:08:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:28,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:28,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446136700] [2024-11-22 17:08:28,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446136700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:28,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:28,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:08:28,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134963676] [2024-11-22 17:08:28,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:28,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 17:08:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 17:08:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 17:08:28,508 INFO L87 Difference]: Start difference. First operand 502 states and 667 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 17:08:28,857 INFO L93 Difference]: Finished difference Result 977 states and 1311 transitions. [2024-11-22 17:08:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:08:28,857 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-22 17:08:28,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 17:08:28,859 INFO L225 Difference]: With dead ends: 977 [2024-11-22 17:08:28,859 INFO L226 Difference]: Without dead ends: 511 [2024-11-22 17:08:28,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 17:08:28,861 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 22 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 17:08:28,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4001 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 17:08:28,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-22 17:08:28,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 499. [2024-11-22 17:08:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 476 states have (on average 1.3319327731092436) internal successors, (634), 480 states have internal predecessors, (634), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 17:08:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 664 transitions. [2024-11-22 17:08:28,873 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 664 transitions. Word has length 72 [2024-11-22 17:08:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 17:08:28,873 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 664 transitions. [2024-11-22 17:08:28,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 664 transitions. [2024-11-22 17:08:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 17:08:28,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 17:08:28,874 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:08:28,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 17:08:28,874 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-22 17:08:28,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:08:28,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2084167451, now seen corresponding path program 1 times [2024-11-22 17:08:28,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:08:28,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350431397] [2024-11-22 17:08:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:08:28,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:08:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:08:42,165 WARN L286 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-22 17:08:54,185 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (* (div |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967296) 524288)) (.cse0 (div |c_ULTIMATE.start_main_~_hj_j~0#1| 8192))) (and (= .cse0 (+ .cse1 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (<= 4408680405129836981 (+ (* 1030789530 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) (* |c_ULTIMATE.start_main_~_hj_j~0#1| 2061579059) (* (div (+ (* (- 4123158118) |c_ULTIMATE.start_main_~_hj_j~0#1|) 8817360810260198248 .cse1 (* (- 2061579059) |c_ULTIMATE.start_main_~_ha_hashv~0#1|) (* (- 1) .cse0)) 4294967296) 2147483648))))) is different from false [2024-11-22 17:08:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:08:54,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:08:54,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350431397] [2024-11-22 17:08:54,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350431397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:08:54,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:08:54,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 17:08:54,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269143356] [2024-11-22 17:08:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:08:54,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 17:08:54,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:08:54,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 17:08:54,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=72, Unknown=1, NotChecked=16, Total=110 [2024-11-22 17:08:54,246 INFO L87 Difference]: Start difference. First operand 499 states and 664 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:08:58,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-22 17:08:59,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-22 17:09:03,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-22 17:09:06,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-22 17:09:39,908 WARN L286 SmtUtils]: Spent 8.84s on a formula simplification. DAG size of input: 45 DAG size of output: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-22 17:09:43,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-22 17:09:47,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []