./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_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 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 14:59:19,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 14:59:19,171 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 14:59:19,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 14:59:19,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 14:59:19,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 14:59:19,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 14:59:19,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 14:59:19,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 14:59:19,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 14:59:19,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 14:59:19,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 14:59:19,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 14:59:19,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 14:59:19,207 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 14:59:19,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 14:59:19,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 14:59:19,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 14:59:19,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 14:59:19,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 14:59:19,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 14:59:19,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 14:59:19,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 14:59:19,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 14:59:19,211 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 14:59:19,211 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 14:59:19,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 14:59:19,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 14:59:19,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 14:59:19,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 14:59:19,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 14:59:19,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 14:59:19,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 14:59:19,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 14:59:19,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 14:59:19,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 14:59:19,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 14:59:19,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 14:59:19,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 14:59:19,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 14:59:19,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 14:59:19,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 14:59:19,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2024-10-24 14:59:19,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 14:59:19,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 14:59:19,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 14:59:19,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 14:59:19,543 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 14:59:19,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2024-10-24 14:59:20,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 14:59:21,306 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 14:59:21,307 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2024-10-24 14:59:21,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf7313bd/baffb5641d8f479b9b21c5706b6b84a5/FLAG6c6fdd0a0 [2024-10-24 14:59:21,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf7313bd/baffb5641d8f479b9b21c5706b6b84a5 [2024-10-24 14:59:21,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 14:59:21,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 14:59:21,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 14:59:21,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 14:59:21,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 14:59:21,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:59:21" (1/1) ... [2024-10-24 14:59:21,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602571f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:21, skipping insertion in model container [2024-10-24 14:59:21,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:59:21" (1/1) ... [2024-10-24 14:59:21,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 14:59:22,134 WARN L248 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_SFH_test6-2.i[44118,44131] [2024-10-24 14:59:22,149 WARN L248 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_SFH_test6-2.i[44660,44673] [2024-10-24 14:59:22,303 WARN L248 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_SFH_test6-2.i[56247,56260] [2024-10-24 14:59:22,319 WARN L248 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_SFH_test6-2.i[56368,56381] [2024-10-24 14:59:22,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 14:59:22,357 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 14:59:22,390 WARN L248 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_SFH_test6-2.i[44118,44131] [2024-10-24 14:59:22,397 WARN L248 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_SFH_test6-2.i[44660,44673] [2024-10-24 14:59:22,468 WARN L248 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_SFH_test6-2.i[56247,56260] [2024-10-24 14:59:22,469 WARN L248 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_SFH_test6-2.i[56368,56381] [2024-10-24 14:59:22,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 14:59:22,534 INFO L204 MainTranslator]: Completed translation [2024-10-24 14:59:22,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22 WrapperNode [2024-10-24 14:59:22,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 14:59:22,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 14:59:22,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 14:59:22,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 14:59:22,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,661 INFO L138 Inliner]: procedures = 282, calls = 339, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1638 [2024-10-24 14:59:22,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 14:59:22,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 14:59:22,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 14:59:22,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 14:59:22,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,780 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [2, 3, 34, 270]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 2, 4, 57]. [2024-10-24 14:59:22,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 14:59:22,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 14:59:22,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 14:59:22,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 14:59:22,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (1/1) ... [2024-10-24 14:59:22,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 14:59:22,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 14:59:22,926 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) [2024-10-24 14:59:22,929 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 [2024-10-24 14:59:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 14:59:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 14:59:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 14:59:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 14:59:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 14:59:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 14:59:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-24 14:59:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-24 14:59:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 14:59:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 14:59:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 14:59:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 14:59:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 14:59:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 14:59:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 14:59:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 14:59:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 14:59:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 14:59:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 14:59:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 14:59:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-24 14:59:22,989 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-24 14:59:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 14:59:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 14:59:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 14:59:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 14:59:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-24 14:59:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-24 14:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 14:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 14:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 14:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 14:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 14:59:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 14:59:23,334 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 14:59:23,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 14:59:24,806 INFO L? ?]: Removed 364 outVars from TransFormulas that were not future-live. [2024-10-24 14:59:24,806 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 14:59:24,868 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 14:59:24,869 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-24 14:59:24,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:59:24 BoogieIcfgContainer [2024-10-24 14:59:24,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 14:59:24,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 14:59:24,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 14:59:24,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 14:59:24,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:59:21" (1/3) ... [2024-10-24 14:59:24,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9a6e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:59:24, skipping insertion in model container [2024-10-24 14:59:24,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:59:22" (2/3) ... [2024-10-24 14:59:24,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9a6e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:59:24, skipping insertion in model container [2024-10-24 14:59:24,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:59:24" (3/3) ... [2024-10-24 14:59:24,880 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2024-10-24 14:59:24,897 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 14:59:24,898 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 14:59:24,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 14:59:24,991 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;@2eff6d1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 14:59:24,991 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 14:59:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 462 states, 438 states have (on average 1.6141552511415524) internal successors, (707), 442 states have internal predecessors, (707), 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) [2024-10-24 14:59:25,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 14:59:25,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:25,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:59:25,007 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)] === [2024-10-24 14:59:25,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 123534520, now seen corresponding path program 1 times [2024-10-24 14:59:25,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846983861] [2024-10-24 14:59:25,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:25,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:25,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:25,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846983861] [2024-10-24 14:59:25,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846983861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:25,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:25,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 14:59:25,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810739707] [2024-10-24 14:59:25,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:25,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 14:59:25,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:25,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 14:59:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 14:59:25,264 INFO L87 Difference]: Start difference. First operand has 462 states, 438 states have (on average 1.6141552511415524) internal successors, (707), 442 states have internal predecessors, (707), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-24 14:59:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:25,365 INFO L93 Difference]: Finished difference Result 921 states and 1486 transitions. [2024-10-24 14:59:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 14:59:25,369 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-10-24 14:59:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:25,384 INFO L225 Difference]: With dead ends: 921 [2024-10-24 14:59:25,384 INFO L226 Difference]: Without dead ends: 458 [2024-10-24 14:59:25,388 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 [2024-10-24 14:59:25,391 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:25,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 647 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 14:59:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-10-24 14:59:25,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2024-10-24 14:59:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 435 states have (on average 1.4344827586206896) internal successors, (624), 439 states have internal predecessors, (624), 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) [2024-10-24 14:59:25,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 654 transitions. [2024-10-24 14:59:25,455 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 654 transitions. Word has length 7 [2024-10-24 14:59:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:25,456 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 654 transitions. [2024-10-24 14:59:25,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-24 14:59:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 654 transitions. [2024-10-24 14:59:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-24 14:59:25,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:25,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:59:25,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 14:59:25,457 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)] === [2024-10-24 14:59:25,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:25,459 INFO L85 PathProgramCache]: Analyzing trace with hash 215496090, now seen corresponding path program 1 times [2024-10-24 14:59:25,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:25,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007562993] [2024-10-24 14:59:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:25,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:25,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:25,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007562993] [2024-10-24 14:59:25,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007562993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:25,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:25,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 14:59:25,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475897408] [2024-10-24 14:59:25,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:25,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:59:25,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:25,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:59:25,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:59:25,678 INFO L87 Difference]: Start difference. First operand 458 states and 654 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 14:59:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:25,903 INFO L93 Difference]: Finished difference Result 1141 states and 1637 transitions. [2024-10-24 14:59:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:59:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-24 14:59:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:25,908 INFO L225 Difference]: With dead ends: 1141 [2024-10-24 14:59:25,908 INFO L226 Difference]: Without dead ends: 894 [2024-10-24 14:59:25,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 14:59:25,910 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 602 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:25,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 2059 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 14:59:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-10-24 14:59:25,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 460. [2024-10-24 14:59:25,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.4324942791762014) internal successors, (626), 441 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) [2024-10-24 14:59:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 656 transitions. [2024-10-24 14:59:25,957 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 656 transitions. Word has length 9 [2024-10-24 14:59:25,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:25,958 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 656 transitions. [2024-10-24 14:59:25,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 14:59:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 656 transitions. [2024-10-24 14:59:25,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 14:59:25,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:25,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:59:25,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 14:59:25,963 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)] === [2024-10-24 14:59:25,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1344700540, now seen corresponding path program 1 times [2024-10-24 14:59:25,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:25,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649447829] [2024-10-24 14:59:25,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:25,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:26,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:26,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649447829] [2024-10-24 14:59:26,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649447829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:26,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:26,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 14:59:26,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616915979] [2024-10-24 14:59:26,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:26,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:59:26,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:59:26,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:59:26,247 INFO L87 Difference]: Start difference. First operand 460 states and 656 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-10-24 14:59:26,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:26,360 INFO L93 Difference]: Finished difference Result 920 states and 1312 transitions. [2024-10-24 14:59:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:59:26,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 64 [2024-10-24 14:59:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:26,365 INFO L225 Difference]: With dead ends: 920 [2024-10-24 14:59:26,365 INFO L226 Difference]: Without dead ends: 463 [2024-10-24 14:59:26,367 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 [2024-10-24 14:59:26,368 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 106 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:26,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1763 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 14:59:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-10-24 14:59:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 460. [2024-10-24 14:59:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.4164759725400458) internal successors, (619), 441 states have internal predecessors, (619), 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) [2024-10-24 14:59:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 649 transitions. [2024-10-24 14:59:26,383 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 649 transitions. Word has length 64 [2024-10-24 14:59:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:26,383 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 649 transitions. [2024-10-24 14:59:26,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-10-24 14:59:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 649 transitions. [2024-10-24 14:59:26,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 14:59:26,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:26,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:59:26,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 14:59:26,386 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)] === [2024-10-24 14:59:26,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1049205422, now seen corresponding path program 1 times [2024-10-24 14:59:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812474930] [2024-10-24 14:59:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:26,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:26,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812474930] [2024-10-24 14:59:26,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812474930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:26,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:26,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 14:59:26,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24657475] [2024-10-24 14:59:26,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:26,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:59:26,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:26,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:59:26,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:59:26,543 INFO L87 Difference]: Start difference. First operand 460 states and 649 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-10-24 14:59:26,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:26,636 INFO L93 Difference]: Finished difference Result 869 states and 1220 transitions. [2024-10-24 14:59:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 14:59:26,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 64 [2024-10-24 14:59:26,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:26,641 INFO L225 Difference]: With dead ends: 869 [2024-10-24 14:59:26,642 INFO L226 Difference]: Without dead ends: 412 [2024-10-24 14:59:26,643 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 [2024-10-24 14:59:26,644 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 9 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:26,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1612 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 14:59:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-24 14:59:26,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-10-24 14:59:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 389 states have (on average 1.3856041131105399) internal successors, (539), 393 states have internal predecessors, (539), 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) [2024-10-24 14:59:26,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 569 transitions. [2024-10-24 14:59:26,660 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 569 transitions. Word has length 64 [2024-10-24 14:59:26,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:26,662 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 569 transitions. [2024-10-24 14:59:26,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-10-24 14:59:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 569 transitions. [2024-10-24 14:59:26,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 14:59:26,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:26,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 14:59:26,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 14:59:26,666 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)] === [2024-10-24 14:59:26,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:26,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1873954576, now seen corresponding path program 1 times [2024-10-24 14:59:26,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:26,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763347351] [2024-10-24 14:59:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:26,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:27,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:27,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763347351] [2024-10-24 14:59:27,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763347351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:27,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:27,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 14:59:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88057525] [2024-10-24 14:59:27,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:27,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 14:59:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 14:59:27,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 14:59:27,113 INFO L87 Difference]: Start difference. First operand 412 states and 569 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2024-10-24 14:59:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:27,491 INFO L93 Difference]: Finished difference Result 826 states and 1143 transitions. [2024-10-24 14:59:27,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 14:59:27,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 64 [2024-10-24 14:59:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:27,494 INFO L225 Difference]: With dead ends: 826 [2024-10-24 14:59:27,494 INFO L226 Difference]: Without dead ends: 417 [2024-10-24 14:59:27,495 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 [2024-10-24 14:59:27,496 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 10 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:27,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2431 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:59:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-24 14:59:27,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 414. [2024-10-24 14:59:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 391 states have (on average 1.3836317135549872) internal successors, (541), 395 states have internal predecessors, (541), 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) [2024-10-24 14:59:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 571 transitions. [2024-10-24 14:59:27,509 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 571 transitions. Word has length 64 [2024-10-24 14:59:27,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:27,510 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 571 transitions. [2024-10-24 14:59:27,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2024-10-24 14:59:27,510 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 571 transitions. [2024-10-24 14:59:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 14:59:27,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:27,514 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] [2024-10-24 14:59:27,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 14:59:27,516 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)] === [2024-10-24 14:59:27,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:27,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1439444555, now seen corresponding path program 1 times [2024-10-24 14:59:27,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:27,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414154599] [2024-10-24 14:59:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:27,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:27,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414154599] [2024-10-24 14:59:27,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414154599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:27,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:27,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 14:59:27,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554803770] [2024-10-24 14:59:27,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:27,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 14:59:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:27,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 14:59:27,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 14:59:27,869 INFO L87 Difference]: Start difference. First operand 414 states and 571 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-10-24 14:59:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:28,006 INFO L93 Difference]: Finished difference Result 825 states and 1139 transitions. [2024-10-24 14:59:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 14:59:28,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 65 [2024-10-24 14:59:28,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:28,009 INFO L225 Difference]: With dead ends: 825 [2024-10-24 14:59:28,009 INFO L226 Difference]: Without dead ends: 414 [2024-10-24 14:59:28,010 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 [2024-10-24 14:59:28,011 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 13 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:28,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1524 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 14:59:28,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-10-24 14:59:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-10-24 14:59:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 391 states have (on average 1.381074168797954) internal successors, (540), 395 states have internal predecessors, (540), 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) [2024-10-24 14:59:28,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 570 transitions. [2024-10-24 14:59:28,022 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 570 transitions. Word has length 65 [2024-10-24 14:59:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:28,022 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 570 transitions. [2024-10-24 14:59:28,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-10-24 14:59:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 570 transitions. [2024-10-24 14:59:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 14:59:28,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:28,024 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] [2024-10-24 14:59:28,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 14:59:28,024 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)] === [2024-10-24 14:59:28,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:28,024 INFO L85 PathProgramCache]: Analyzing trace with hash -395161161, now seen corresponding path program 1 times [2024-10-24 14:59:28,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:28,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871686695] [2024-10-24 14:59:28,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:28,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:28,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:28,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871686695] [2024-10-24 14:59:28,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871686695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:28,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:28,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 14:59:28,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956167666] [2024-10-24 14:59:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:28,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 14:59:28,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:28,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 14:59:28,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:59:28,284 INFO L87 Difference]: Start difference. First operand 414 states and 570 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2024-10-24 14:59:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:28,636 INFO L93 Difference]: Finished difference Result 830 states and 1145 transitions. [2024-10-24 14:59:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 14:59:28,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 65 [2024-10-24 14:59:28,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:28,639 INFO L225 Difference]: With dead ends: 830 [2024-10-24 14:59:28,640 INFO L226 Difference]: Without dead ends: 419 [2024-10-24 14:59:28,641 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 [2024-10-24 14:59:28,641 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 10 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:28,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2917 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:59:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-24 14:59:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2024-10-24 14:59:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 395 states have (on average 1.379746835443038) internal successors, (545), 399 states have internal predecessors, (545), 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) [2024-10-24 14:59:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 575 transitions. [2024-10-24 14:59:28,655 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 575 transitions. Word has length 65 [2024-10-24 14:59:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:28,656 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 575 transitions. [2024-10-24 14:59:28,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2024-10-24 14:59:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 575 transitions. [2024-10-24 14:59:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 14:59:28,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:28,657 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] [2024-10-24 14:59:28,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 14:59:28,658 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)] === [2024-10-24 14:59:28,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1465365099, now seen corresponding path program 1 times [2024-10-24 14:59:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:28,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123788302] [2024-10-24 14:59:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:28,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123788302] [2024-10-24 14:59:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123788302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:28,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:28,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 14:59:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405834856] [2024-10-24 14:59:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:28,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 14:59:28,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 14:59:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 14:59:28,940 INFO L87 Difference]: Start difference. First operand 418 states and 575 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) [2024-10-24 14:59:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:29,208 INFO L93 Difference]: Finished difference Result 836 states and 1152 transitions. [2024-10-24 14:59:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 14:59:29,209 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 [2024-10-24 14:59:29,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:29,211 INFO L225 Difference]: With dead ends: 836 [2024-10-24 14:59:29,211 INFO L226 Difference]: Without dead ends: 421 [2024-10-24 14:59:29,213 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 [2024-10-24 14:59:29,213 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 4 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:29,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1996 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 14:59:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-10-24 14:59:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-10-24 14:59:29,230 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) [2024-10-24 14:59:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 578 transitions. [2024-10-24 14:59:29,232 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 578 transitions. Word has length 66 [2024-10-24 14:59:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:29,233 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 578 transitions. [2024-10-24 14:59:29,234 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) [2024-10-24 14:59:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 578 transitions. [2024-10-24 14:59:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 14:59:29,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:29,238 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] [2024-10-24 14:59:29,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 14:59:29,238 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)] === [2024-10-24 14:59:29,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash 55631932, now seen corresponding path program 1 times [2024-10-24 14:59:29,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:29,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311913215] [2024-10-24 14:59:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:29,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:29,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:29,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311913215] [2024-10-24 14:59:29,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311913215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:29,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:29,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 14:59:29,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166792217] [2024-10-24 14:59:29,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:29,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 14:59:29,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:29,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 14:59:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 14:59:29,707 INFO L87 Difference]: Start difference. First operand 421 states and 578 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 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) [2024-10-24 14:59:30,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:30,229 INFO L93 Difference]: Finished difference Result 852 states and 1174 transitions. [2024-10-24 14:59:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 14:59:30,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 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 [2024-10-24 14:59:30,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:30,232 INFO L225 Difference]: With dead ends: 852 [2024-10-24 14:59:30,232 INFO L226 Difference]: Without dead ends: 434 [2024-10-24 14:59:30,233 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 [2024-10-24 14:59:30,235 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 30 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:30,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3936 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:59:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-10-24 14:59:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 431. [2024-10-24 14:59:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 408 states have (on average 1.3774509803921569) internal successors, (562), 412 states have internal predecessors, (562), 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) [2024-10-24 14:59:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 592 transitions. [2024-10-24 14:59:30,253 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 592 transitions. Word has length 66 [2024-10-24 14:59:30,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:30,253 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 592 transitions. [2024-10-24 14:59:30,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 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) [2024-10-24 14:59:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 592 transitions. [2024-10-24 14:59:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 14:59:30,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:30,256 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] [2024-10-24 14:59:30,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 14:59:30,258 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)] === [2024-10-24 14:59:30,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:30,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1668302933, now seen corresponding path program 1 times [2024-10-24 14:59:30,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:30,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748581908] [2024-10-24 14:59:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:30,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:30,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:30,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748581908] [2024-10-24 14:59:30,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748581908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:30,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:30,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 14:59:30,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347393826] [2024-10-24 14:59:30,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:30,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 14:59:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:30,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 14:59:30,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 14:59:30,718 INFO L87 Difference]: Start difference. First operand 431 states and 592 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 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) [2024-10-24 14:59:31,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:31,150 INFO L93 Difference]: Finished difference Result 862 states and 1186 transitions. [2024-10-24 14:59:31,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 14:59:31,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 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 [2024-10-24 14:59:31,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:31,154 INFO L225 Difference]: With dead ends: 862 [2024-10-24 14:59:31,154 INFO L226 Difference]: Without dead ends: 434 [2024-10-24 14:59:31,155 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 [2024-10-24 14:59:31,156 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 23 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:31,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3447 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:59:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-10-24 14:59:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2024-10-24 14:59:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3746958637469586) internal successors, (565), 415 states have internal predecessors, (565), 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) [2024-10-24 14:59:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 595 transitions. [2024-10-24 14:59:31,169 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 595 transitions. Word has length 66 [2024-10-24 14:59:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:31,169 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 595 transitions. [2024-10-24 14:59:31,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 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) [2024-10-24 14:59:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 595 transitions. [2024-10-24 14:59:31,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 14:59:31,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:31,171 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] [2024-10-24 14:59:31,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 14:59:31,171 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)] === [2024-10-24 14:59:31,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:31,172 INFO L85 PathProgramCache]: Analyzing trace with hash -267751346, now seen corresponding path program 1 times [2024-10-24 14:59:31,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:31,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243934994] [2024-10-24 14:59:31,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:31,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:31,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:31,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243934994] [2024-10-24 14:59:31,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243934994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:31,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:31,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 14:59:31,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907468526] [2024-10-24 14:59:31,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:31,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 14:59:31,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:31,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 14:59:31,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:59:31,482 INFO L87 Difference]: Start difference. First operand 434 states and 595 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) [2024-10-24 14:59:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:31,900 INFO L93 Difference]: Finished difference Result 870 states and 1195 transitions. [2024-10-24 14:59:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 14:59:31,901 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 [2024-10-24 14:59:31,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:31,905 INFO L225 Difference]: With dead ends: 870 [2024-10-24 14:59:31,905 INFO L226 Difference]: Without dead ends: 439 [2024-10-24 14:59:31,906 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 [2024-10-24 14:59:31,907 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 9 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:31,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2923 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:59:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-10-24 14:59:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2024-10-24 14:59:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3746958637469586) internal successors, (565), 415 states have internal predecessors, (565), 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) [2024-10-24 14:59:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 595 transitions. [2024-10-24 14:59:31,925 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 595 transitions. Word has length 67 [2024-10-24 14:59:31,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:31,926 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 595 transitions. [2024-10-24 14:59:31,926 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) [2024-10-24 14:59:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 595 transitions. [2024-10-24 14:59:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 14:59:31,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:31,927 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] [2024-10-24 14:59:31,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 14:59:31,928 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)] === [2024-10-24 14:59:31,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1004481798, now seen corresponding path program 1 times [2024-10-24 14:59:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:31,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084868323] [2024-10-24 14:59:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:32,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:32,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084868323] [2024-10-24 14:59:32,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084868323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:32,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:32,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 14:59:32,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171027284] [2024-10-24 14:59:32,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:32,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 14:59:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 14:59:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 14:59:32,472 INFO L87 Difference]: Start difference. First operand 434 states and 595 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2024-10-24 14:59:33,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:33,423 INFO L93 Difference]: Finished difference Result 1258 states and 1737 transitions. [2024-10-24 14:59:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:33,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2024-10-24 14:59:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:33,428 INFO L225 Difference]: With dead ends: 1258 [2024-10-24 14:59:33,428 INFO L226 Difference]: Without dead ends: 827 [2024-10-24 14:59:33,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-10-24 14:59:33,429 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 646 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:33,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 3520 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 14:59:33,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-10-24 14:59:33,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 465. [2024-10-24 14:59:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 442 states have (on average 1.3484162895927603) internal successors, (596), 446 states have internal predecessors, (596), 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) [2024-10-24 14:59:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 626 transitions. [2024-10-24 14:59:33,447 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 626 transitions. Word has length 67 [2024-10-24 14:59:33,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:33,448 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 626 transitions. [2024-10-24 14:59:33,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2024-10-24 14:59:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 626 transitions. [2024-10-24 14:59:33,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 14:59:33,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:33,449 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] [2024-10-24 14:59:33,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 14:59:33,449 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)] === [2024-10-24 14:59:33,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1868095393, now seen corresponding path program 1 times [2024-10-24 14:59:33,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:33,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774572515] [2024-10-24 14:59:33,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:33,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:33,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:33,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774572515] [2024-10-24 14:59:33,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774572515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:33,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:33,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 14:59:33,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268713968] [2024-10-24 14:59:33,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:33,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 14:59:33,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:33,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 14:59:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 14:59:33,723 INFO L87 Difference]: Start difference. First operand 465 states and 626 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) [2024-10-24 14:59:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:34,046 INFO L93 Difference]: Finished difference Result 906 states and 1232 transitions. [2024-10-24 14:59:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 14:59:34,047 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 [2024-10-24 14:59:34,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:34,050 INFO L225 Difference]: With dead ends: 906 [2024-10-24 14:59:34,050 INFO L226 Difference]: Without dead ends: 475 [2024-10-24 14:59:34,051 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 [2024-10-24 14:59:34,052 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 16 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:34,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3012 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:59:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-10-24 14:59:34,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 468. [2024-10-24 14:59:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 445 states have (on average 1.348314606741573) internal successors, (600), 449 states have internal predecessors, (600), 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) [2024-10-24 14:59:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 630 transitions. [2024-10-24 14:59:34,068 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 630 transitions. Word has length 68 [2024-10-24 14:59:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:34,068 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 630 transitions. [2024-10-24 14:59:34,068 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) [2024-10-24 14:59:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 630 transitions. [2024-10-24 14:59:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 14:59:34,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:34,069 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] [2024-10-24 14:59:34,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 14:59:34,070 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)] === [2024-10-24 14:59:34,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:34,070 INFO L85 PathProgramCache]: Analyzing trace with hash -289631099, now seen corresponding path program 1 times [2024-10-24 14:59:34,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:34,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012599752] [2024-10-24 14:59:34,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:34,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:34,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:34,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012599752] [2024-10-24 14:59:34,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012599752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:34,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:34,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 14:59:34,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589299183] [2024-10-24 14:59:34,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:34,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 14:59:34,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 14:59:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 14:59:34,362 INFO L87 Difference]: Start difference. First operand 468 states and 630 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) [2024-10-24 14:59:34,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:34,875 INFO L93 Difference]: Finished difference Result 912 states and 1240 transitions. [2024-10-24 14:59:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:34,876 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 [2024-10-24 14:59:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:34,878 INFO L225 Difference]: With dead ends: 912 [2024-10-24 14:59:34,878 INFO L226 Difference]: Without dead ends: 478 [2024-10-24 14:59:34,879 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 [2024-10-24 14:59:34,880 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 26 mSDsluCounter, 3329 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:34,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3872 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:59:34,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-24 14:59:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 468. [2024-10-24 14:59:34,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 445 states have (on average 1.348314606741573) internal successors, (600), 449 states have internal predecessors, (600), 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) [2024-10-24 14:59:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 630 transitions. [2024-10-24 14:59:34,898 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 630 transitions. Word has length 68 [2024-10-24 14:59:34,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:34,899 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 630 transitions. [2024-10-24 14:59:34,899 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) [2024-10-24 14:59:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 630 transitions. [2024-10-24 14:59:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 14:59:34,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:34,900 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] [2024-10-24 14:59:34,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 14:59:34,901 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)] === [2024-10-24 14:59:34,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:34,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1391773950, now seen corresponding path program 1 times [2024-10-24 14:59:34,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:34,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418007468] [2024-10-24 14:59:34,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:34,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:35,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:35,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418007468] [2024-10-24 14:59:35,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418007468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:35,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:35,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 14:59:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912018854] [2024-10-24 14:59:35,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:35,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 14:59:35,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:35,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 14:59:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:59:35,260 INFO L87 Difference]: Start difference. First operand 468 states and 630 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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) [2024-10-24 14:59:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:35,743 INFO L93 Difference]: Finished difference Result 918 states and 1249 transitions. [2024-10-24 14:59:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:35,743 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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 [2024-10-24 14:59:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:35,746 INFO L225 Difference]: With dead ends: 918 [2024-10-24 14:59:35,746 INFO L226 Difference]: Without dead ends: 484 [2024-10-24 14:59:35,748 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 [2024-10-24 14:59:35,749 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 19 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:35,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3953 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 14:59:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-24 14:59:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2024-10-24 14:59:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 455 states have (on average 1.3450549450549452) internal successors, (612), 459 states have internal predecessors, (612), 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) [2024-10-24 14:59:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 642 transitions. [2024-10-24 14:59:35,764 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 642 transitions. Word has length 69 [2024-10-24 14:59:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:35,764 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 642 transitions. [2024-10-24 14:59:35,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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) [2024-10-24 14:59:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 642 transitions. [2024-10-24 14:59:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 14:59:35,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:35,766 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] [2024-10-24 14:59:35,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 14:59:35,766 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)] === [2024-10-24 14:59:35,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:35,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1073237862, now seen corresponding path program 1 times [2024-10-24 14:59:35,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:35,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055797770] [2024-10-24 14:59:35,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:35,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:36,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:36,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055797770] [2024-10-24 14:59:36,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055797770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:36,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:36,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 14:59:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473090487] [2024-10-24 14:59:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:36,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 14:59:36,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 14:59:36,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:59:36,089 INFO L87 Difference]: Start difference. First operand 478 states and 642 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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) [2024-10-24 14:59:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:36,637 INFO L93 Difference]: Finished difference Result 938 states and 1273 transitions. [2024-10-24 14:59:36,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:36,640 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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 [2024-10-24 14:59:36,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:36,643 INFO L225 Difference]: With dead ends: 938 [2024-10-24 14:59:36,643 INFO L226 Difference]: Without dead ends: 494 [2024-10-24 14:59:36,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:59:36,645 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 13 mSDsluCounter, 3856 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4387 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:36,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4387 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:59:36,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-10-24 14:59:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 481. [2024-10-24 14:59:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 458 states have (on average 1.3449781659388647) internal successors, (616), 462 states have internal predecessors, (616), 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) [2024-10-24 14:59:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 646 transitions. [2024-10-24 14:59:36,664 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 646 transitions. Word has length 69 [2024-10-24 14:59:36,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:36,665 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 646 transitions. [2024-10-24 14:59:36,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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) [2024-10-24 14:59:36,665 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 646 transitions. [2024-10-24 14:59:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 14:59:36,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:36,666 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] [2024-10-24 14:59:36,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 14:59:36,666 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)] === [2024-10-24 14:59:36,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1723676698, now seen corresponding path program 1 times [2024-10-24 14:59:36,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:36,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517406194] [2024-10-24 14:59:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:36,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:37,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:37,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517406194] [2024-10-24 14:59:37,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517406194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:37,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:37,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 14:59:37,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230528008] [2024-10-24 14:59:37,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:37,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 14:59:37,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:37,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 14:59:37,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:59:37,038 INFO L87 Difference]: Start difference. First operand 481 states and 646 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) [2024-10-24 14:59:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:37,383 INFO L93 Difference]: Finished difference Result 933 states and 1263 transitions. [2024-10-24 14:59:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 14:59:37,383 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 [2024-10-24 14:59:37,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:37,386 INFO L225 Difference]: With dead ends: 933 [2024-10-24 14:59:37,386 INFO L226 Difference]: Without dead ends: 486 [2024-10-24 14:59:37,387 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 [2024-10-24 14:59:37,388 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 7 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:37,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2947 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:59:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-10-24 14:59:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 481. [2024-10-24 14:59:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 458 states have (on average 1.3427947598253276) internal successors, (615), 462 states have internal predecessors, (615), 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) [2024-10-24 14:59:37,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 645 transitions. [2024-10-24 14:59:37,403 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 645 transitions. Word has length 69 [2024-10-24 14:59:37,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:37,404 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 645 transitions. [2024-10-24 14:59:37,404 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) [2024-10-24 14:59:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 645 transitions. [2024-10-24 14:59:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 14:59:37,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:37,406 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] [2024-10-24 14:59:37,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 14:59:37,407 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)] === [2024-10-24 14:59:37,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash -958619597, now seen corresponding path program 1 times [2024-10-24 14:59:37,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181029690] [2024-10-24 14:59:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:37,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:37,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181029690] [2024-10-24 14:59:37,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181029690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:37,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:37,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 14:59:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221451513] [2024-10-24 14:59:37,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:37,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 14:59:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:37,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 14:59:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 14:59:37,690 INFO L87 Difference]: Start difference. First operand 481 states and 645 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) [2024-10-24 14:59:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:38,057 INFO L93 Difference]: Finished difference Result 931 states and 1261 transitions. [2024-10-24 14:59:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 14:59:38,057 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 [2024-10-24 14:59:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:38,060 INFO L225 Difference]: With dead ends: 931 [2024-10-24 14:59:38,060 INFO L226 Difference]: Without dead ends: 484 [2024-10-24 14:59:38,061 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 [2024-10-24 14:59:38,062 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 4 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:38,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2906 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 14:59:38,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-24 14:59:38,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-10-24 14:59:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 461 states have (on average 1.3405639913232104) internal successors, (618), 465 states have internal predecessors, (618), 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) [2024-10-24 14:59:38,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 648 transitions. [2024-10-24 14:59:38,081 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 648 transitions. Word has length 69 [2024-10-24 14:59:38,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:38,081 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 648 transitions. [2024-10-24 14:59:38,082 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) [2024-10-24 14:59:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 648 transitions. [2024-10-24 14:59:38,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 14:59:38,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:38,083 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] [2024-10-24 14:59:38,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 14:59:38,083 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)] === [2024-10-24 14:59:38,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash 710707364, now seen corresponding path program 1 times [2024-10-24 14:59:38,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:38,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647861682] [2024-10-24 14:59:38,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:38,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647861682] [2024-10-24 14:59:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647861682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:38,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 14:59:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599748774] [2024-10-24 14:59:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:38,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 14:59:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:38,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 14:59:38,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:59:38,519 INFO L87 Difference]: Start difference. First operand 484 states and 648 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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) [2024-10-24 14:59:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:39,047 INFO L93 Difference]: Finished difference Result 946 states and 1280 transitions. [2024-10-24 14:59:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:39,047 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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 [2024-10-24 14:59:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:39,051 INFO L225 Difference]: With dead ends: 946 [2024-10-24 14:59:39,051 INFO L226 Difference]: Without dead ends: 496 [2024-10-24 14:59:39,052 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 [2024-10-24 14:59:39,052 INFO L432 NwaCegarLoop]: 542 mSDtfsCounter, 9 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:39,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3913 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:59:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-10-24 14:59:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 488. [2024-10-24 14:59:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 465 states have (on average 1.3397849462365592) internal successors, (623), 469 states have internal predecessors, (623), 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) [2024-10-24 14:59:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 653 transitions. [2024-10-24 14:59:39,070 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 653 transitions. Word has length 70 [2024-10-24 14:59:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:39,071 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 653 transitions. [2024-10-24 14:59:39,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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) [2024-10-24 14:59:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 653 transitions. [2024-10-24 14:59:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 14:59:39,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:39,072 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] [2024-10-24 14:59:39,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 14:59:39,073 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)] === [2024-10-24 14:59:39,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:39,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1655686255, now seen corresponding path program 1 times [2024-10-24 14:59:39,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:39,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477403300] [2024-10-24 14:59:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:39,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:39,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:39,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477403300] [2024-10-24 14:59:39,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477403300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:39,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:39,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 14:59:39,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871565053] [2024-10-24 14:59:39,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:39,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 14:59:39,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:39,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 14:59:39,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 14:59:39,414 INFO L87 Difference]: Start difference. First operand 488 states and 653 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2024-10-24 14:59:39,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:39,926 INFO L93 Difference]: Finished difference Result 955 states and 1290 transitions. [2024-10-24 14:59:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:39,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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 [2024-10-24 14:59:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:39,930 INFO L225 Difference]: With dead ends: 955 [2024-10-24 14:59:39,931 INFO L226 Difference]: Without dead ends: 501 [2024-10-24 14:59:39,932 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 [2024-10-24 14:59:39,933 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 36 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:39,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4417 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:59:39,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-10-24 14:59:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 491. [2024-10-24 14:59:39,949 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) [2024-10-24 14:59:39,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 656 transitions. [2024-10-24 14:59:39,952 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 656 transitions. Word has length 70 [2024-10-24 14:59:39,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:39,952 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 656 transitions. [2024-10-24 14:59:39,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2024-10-24 14:59:39,952 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 656 transitions. [2024-10-24 14:59:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 14:59:39,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:39,953 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] [2024-10-24 14:59:39,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 14:59:39,953 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)] === [2024-10-24 14:59:39,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1604752520, now seen corresponding path program 1 times [2024-10-24 14:59:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:39,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634471727] [2024-10-24 14:59:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:39,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:40,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:40,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634471727] [2024-10-24 14:59:40,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634471727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:40,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:40,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 14:59:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317021498] [2024-10-24 14:59:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:40,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 14:59:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 14:59:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 14:59:40,524 INFO L87 Difference]: Start difference. First operand 491 states and 656 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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) [2024-10-24 14:59:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:41,363 INFO L93 Difference]: Finished difference Result 954 states and 1286 transitions. [2024-10-24 14:59:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:41,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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 [2024-10-24 14:59:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:41,366 INFO L225 Difference]: With dead ends: 954 [2024-10-24 14:59:41,366 INFO L226 Difference]: Without dead ends: 497 [2024-10-24 14:59:41,368 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 [2024-10-24 14:59:41,369 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 33 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:41,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3842 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 14:59:41,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-24 14:59:41,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 492. [2024-10-24 14:59:41,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 469 states have (on average 1.3368869936034116) internal successors, (627), 473 states have internal predecessors, (627), 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) [2024-10-24 14:59:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 657 transitions. [2024-10-24 14:59:41,386 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 657 transitions. Word has length 70 [2024-10-24 14:59:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:41,386 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 657 transitions. [2024-10-24 14:59:41,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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) [2024-10-24 14:59:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 657 transitions. [2024-10-24 14:59:41,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 14:59:41,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:41,388 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] [2024-10-24 14:59:41,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 14:59:41,388 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)] === [2024-10-24 14:59:41,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash -231710400, now seen corresponding path program 1 times [2024-10-24 14:59:41,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:41,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389587391] [2024-10-24 14:59:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:41,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 14:59:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 14:59:41,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 14:59:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389587391] [2024-10-24 14:59:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389587391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 14:59:41,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 14:59:41,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 14:59:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022135029] [2024-10-24 14:59:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 14:59:41,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 14:59:41,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 14:59:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 14:59:41,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 14:59:41,641 INFO L87 Difference]: Start difference. First operand 492 states and 657 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) [2024-10-24 14:59:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 14:59:42,190 INFO L93 Difference]: Finished difference Result 959 states and 1293 transitions. [2024-10-24 14:59:42,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 14:59:42,191 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 [2024-10-24 14:59:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 14:59:42,194 INFO L225 Difference]: With dead ends: 959 [2024-10-24 14:59:42,194 INFO L226 Difference]: Without dead ends: 501 [2024-10-24 14:59:42,195 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 [2024-10-24 14:59:42,196 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 22 mSDsluCounter, 3329 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 14:59:42,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3872 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 14:59:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-10-24 14:59:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 489. [2024-10-24 14:59:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 466 states have (on average 1.3390557939914163) internal successors, (624), 470 states have internal predecessors, (624), 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) [2024-10-24 14:59:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 654 transitions. [2024-10-24 14:59:42,215 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 654 transitions. Word has length 70 [2024-10-24 14:59:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 14:59:42,216 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 654 transitions. [2024-10-24 14:59:42,216 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) [2024-10-24 14:59:42,216 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 654 transitions. [2024-10-24 14:59:42,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 14:59:42,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 14:59:42,217 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] [2024-10-24 14:59:42,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 14:59:42,218 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)] === [2024-10-24 14:59:42,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 14:59:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash -834701604, now seen corresponding path program 1 times [2024-10-24 14:59:42,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 14:59:42,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720462939] [2024-10-24 14:59:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 14:59:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 14:59:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:00:02,793 WARN L286 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 15:00:06,802 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 [2024-10-24 15:00:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:00:06,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:00:06,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720462939] [2024-10-24 15:00:06,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720462939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:00:06,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:00:06,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 15:00:06,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060785910] [2024-10-24 15:00:06,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:00:06,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 15:00:06,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:00:06,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 15:00:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=72, Unknown=1, NotChecked=16, Total=110 [2024-10-24 15:00:06,866 INFO L87 Difference]: Start difference. First operand 489 states and 654 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2024-10-24 15:00:11,490 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 [] [2024-10-24 15:00:13,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 15:00:17,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 15:00:21,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 15:00:25,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 15:00:29,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []