./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:11:11,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:11:12,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 05:11:12,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:11:12,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:11:12,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:11:12,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:11:12,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:11:12,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 05:11:12,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 05:11:12,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:11:12,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:11:12,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:11:12,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:11:12,089 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:11:12,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:11:12,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:11:12,094 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:11:12,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:11:12,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:11:12,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:11:12,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:11:12,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:11:12,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:11:12,096 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:11:12,096 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:11:12,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:11:12,097 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:11:12,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:11:12,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:11:12,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 05:11:12,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:11:12,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:11:12,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:11:12,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:11:12,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:11:12,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:11:12,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:11:12,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:11:12,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:11:12,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:11:12,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:11:12,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2024-11-19 05:11:12,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:11:12,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:11:12,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:11:12,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:11:12,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:11:12,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-11-19 05:11:13,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:11:14,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:11:14,269 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-11-19 05:11:14,298 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8da6425/165ace83c12a4eac8b4f4b996bd9ced2/FLAGeb8f24521 [2024-11-19 05:11:14,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8da6425/165ace83c12a4eac8b4f4b996bd9ced2 [2024-11-19 05:11:14,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:11:14,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:11:14,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:11:14,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:11:14,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:11:14,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:14" (1/1) ... [2024-11-19 05:11:14,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d74bdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:14, skipping insertion in model container [2024-11-19 05:11:14,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:14" (1/1) ... [2024-11-19 05:11:14,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:11:14,856 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i[33021,33034] [2024-11-19 05:11:15,106 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i[84583,84596] [2024-11-19 05:11:15,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:11:15,127 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:11:15,171 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i[33021,33034] [2024-11-19 05:11:15,287 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i[84583,84596] [2024-11-19 05:11:15,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:11:15,384 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:11:15,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15 WrapperNode [2024-11-19 05:11:15,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:11:15,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:11:15,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:11:15,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:11:15,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,587 INFO L138 Inliner]: procedures = 177, calls = 722, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3282 [2024-11-19 05:11:15,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:11:15,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:11:15,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:11:15,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:11:15,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,695 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-19 05:11:15,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:11:15,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:11:15,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:11:15,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:11:15,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (1/1) ... [2024-11-19 05:11:15,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:11:15,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:11:15,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:11:15,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:11:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 05:11:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 05:11:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 05:11:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 05:11:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 05:11:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 05:11:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 05:11:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 05:11:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 05:11:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 05:11:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 05:11:15,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 05:11:15,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 05:11:15,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 05:11:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 05:11:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:11:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 05:11:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 05:11:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:11:15,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:11:16,099 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:11:16,101 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:11:18,638 INFO L? ?]: Removed 797 outVars from TransFormulas that were not future-live. [2024-11-19 05:11:18,638 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:11:18,685 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:11:18,688 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-19 05:11:18,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:11:18 BoogieIcfgContainer [2024-11-19 05:11:18,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:11:18,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:11:18,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:11:18,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:11:18,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:11:14" (1/3) ... [2024-11-19 05:11:18,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0b3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:11:18, skipping insertion in model container [2024-11-19 05:11:18,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:15" (2/3) ... [2024-11-19 05:11:18,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0b3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:11:18, skipping insertion in model container [2024-11-19 05:11:18,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:11:18" (3/3) ... [2024-11-19 05:11:18,698 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2024-11-19 05:11:18,714 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:11:18,715 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 05:11:18,826 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:11:18,834 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;@5ccd943d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:11:18,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 05:11:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 1371 states, 863 states have (on average 1.8389339513325609) internal successors, (1587), 1365 states have internal predecessors, (1587), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:11:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 05:11:18,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:18,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:18,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1749759959, now seen corresponding path program 1 times [2024-11-19 05:11:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:18,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644577882] [2024-11-19 05:11:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:11:19,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:19,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644577882] [2024-11-19 05:11:19,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644577882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:19,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:19,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:11:19,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787694686] [2024-11-19 05:11:19,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:19,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:11:19,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:19,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:11:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:11:19,047 INFO L87 Difference]: Start difference. First operand has 1371 states, 863 states have (on average 1.8389339513325609) internal successors, (1587), 1365 states have internal predecessors, (1587), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:19,234 INFO L93 Difference]: Finished difference Result 2740 states and 5684 transitions. [2024-11-19 05:11:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:11:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-19 05:11:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:19,281 INFO L225 Difference]: With dead ends: 2740 [2024-11-19 05:11:19,282 INFO L226 Difference]: Without dead ends: 1367 [2024-11-19 05:11:19,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:11:19,302 INFO L432 NwaCegarLoop]: 2533 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:19,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 05:11:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-19 05:11:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2024-11-19 05:11:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 860 states have (on average 1.7709302325581395) internal successors, (1523), 1361 states have internal predecessors, (1523), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:11:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 2529 transitions. [2024-11-19 05:11:19,633 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 2529 transitions. Word has length 9 [2024-11-19 05:11:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:19,633 INFO L471 AbstractCegarLoop]: Abstraction has 1367 states and 2529 transitions. [2024-11-19 05:11:19,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 2529 transitions. [2024-11-19 05:11:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 05:11:19,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:19,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:19,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:11:19,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:19,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2144823555, now seen corresponding path program 1 times [2024-11-19 05:11:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:19,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583749225] [2024-11-19 05:11:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:11:20,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:20,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583749225] [2024-11-19 05:11:20,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583749225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:20,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:20,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:11:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578535590] [2024-11-19 05:11:20,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:20,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:11:20,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:11:20,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:11:20,172 INFO L87 Difference]: Start difference. First operand 1367 states and 2529 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:21,176 INFO L93 Difference]: Finished difference Result 3887 states and 7286 transitions. [2024-11-19 05:11:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 05:11:21,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 05:11:21,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:21,202 INFO L225 Difference]: With dead ends: 3887 [2024-11-19 05:11:21,203 INFO L226 Difference]: Without dead ends: 2721 [2024-11-19 05:11:21,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:11:21,213 INFO L432 NwaCegarLoop]: 2755 mSDtfsCounter, 1508 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:21,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 7514 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 05:11:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2024-11-19 05:11:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1369. [2024-11-19 05:11:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 862 states have (on average 1.7691415313225058) internal successors, (1525), 1363 states have internal predecessors, (1525), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:11:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2531 transitions. [2024-11-19 05:11:21,618 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2531 transitions. Word has length 64 [2024-11-19 05:11:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:21,618 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 2531 transitions. [2024-11-19 05:11:21,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2531 transitions. [2024-11-19 05:11:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 05:11:21,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:21,625 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:21,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:11:21,625 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:21,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:21,626 INFO L85 PathProgramCache]: Analyzing trace with hash 799809380, now seen corresponding path program 1 times [2024-11-19 05:11:21,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:21,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364037192] [2024-11-19 05:11:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:21,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:11:22,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:22,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364037192] [2024-11-19 05:11:22,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364037192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:22,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:22,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:11:22,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795889640] [2024-11-19 05:11:22,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:22,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:11:22,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:22,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:11:22,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:11:22,088 INFO L87 Difference]: Start difference. First operand 1369 states and 2531 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:22,223 INFO L93 Difference]: Finished difference Result 2692 states and 4992 transitions. [2024-11-19 05:11:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:11:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-19 05:11:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:22,239 INFO L225 Difference]: With dead ends: 2692 [2024-11-19 05:11:22,239 INFO L226 Difference]: Without dead ends: 1327 [2024-11-19 05:11:22,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:11:22,247 INFO L432 NwaCegarLoop]: 2427 mSDtfsCounter, 30 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7262 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:22,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7262 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:11:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-19 05:11:22,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1327. [2024-11-19 05:11:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 820 states have (on average 1.7658536585365854) internal successors, (1448), 1321 states have internal predecessors, (1448), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:11:22,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2454 transitions. [2024-11-19 05:11:22,397 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2454 transitions. Word has length 140 [2024-11-19 05:11:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:22,398 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2454 transitions. [2024-11-19 05:11:22,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2454 transitions. [2024-11-19 05:11:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 05:11:22,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:22,403 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:22,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:11:22,404 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:22,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1221636368, now seen corresponding path program 1 times [2024-11-19 05:11:22,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:22,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602444342] [2024-11-19 05:11:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:11:22,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:22,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602444342] [2024-11-19 05:11:22,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602444342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:22,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:22,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:11:22,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783162519] [2024-11-19 05:11:22,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:22,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:11:22,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:22,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:11:22,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:11:22,643 INFO L87 Difference]: Start difference. First operand 1327 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:22,820 INFO L93 Difference]: Finished difference Result 3875 states and 7228 transitions. [2024-11-19 05:11:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:11:22,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-19 05:11:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:22,840 INFO L225 Difference]: With dead ends: 3875 [2024-11-19 05:11:22,841 INFO L226 Difference]: Without dead ends: 2552 [2024-11-19 05:11:22,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:11:22,848 INFO L432 NwaCegarLoop]: 2900 mSDtfsCounter, 1261 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:22,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 5332 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:11:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-19 05:11:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-11-19 05:11:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 1543 states have (on average 1.7945560596241088) internal successors, (2769), 2544 states have internal predecessors, (2769), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-19 05:11:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 4775 transitions. [2024-11-19 05:11:23,239 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 4775 transitions. Word has length 140 [2024-11-19 05:11:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:23,241 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 4775 transitions. [2024-11-19 05:11:23,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:11:23,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 4775 transitions. [2024-11-19 05:11:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 05:11:23,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:23,247 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:23,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:11:23,247 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:23,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2083124984, now seen corresponding path program 1 times [2024-11-19 05:11:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936277406] [2024-11-19 05:11:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:23,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 05:11:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936277406] [2024-11-19 05:11:23,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936277406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:23,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 05:11:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360790496] [2024-11-19 05:11:23,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:23,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 05:11:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:23,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 05:11:23,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 05:11:23,566 INFO L87 Difference]: Start difference. First operand 2550 states and 4775 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:11:23,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:23,775 INFO L93 Difference]: Finished difference Result 4767 states and 9085 transitions. [2024-11-19 05:11:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:11:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-19 05:11:23,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:23,799 INFO L225 Difference]: With dead ends: 4767 [2024-11-19 05:11:23,800 INFO L226 Difference]: Without dead ends: 2466 [2024-11-19 05:11:23,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:11:23,813 INFO L432 NwaCegarLoop]: 2344 mSDtfsCounter, 30 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7013 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:23,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7013 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 05:11:23,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2024-11-19 05:11:24,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2466. [2024-11-19 05:11:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 1459 states have (on average 1.792323509252913) internal successors, (2615), 2460 states have internal predecessors, (2615), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-19 05:11:24,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 4621 transitions. [2024-11-19 05:11:24,115 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 4621 transitions. Word has length 155 [2024-11-19 05:11:24,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:24,116 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 4621 transitions. [2024-11-19 05:11:24,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:11:24,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 4621 transitions. [2024-11-19 05:11:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 05:11:24,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:24,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:24,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:11:24,120 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:24,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:24,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1040328188, now seen corresponding path program 1 times [2024-11-19 05:11:24,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:24,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527882567] [2024-11-19 05:11:24,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:24,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527882567] [2024-11-19 05:11:24,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527882567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:24,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:24,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:11:24,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009603280] [2024-11-19 05:11:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:24,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 05:11:24,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 05:11:24,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 05:11:24,425 INFO L87 Difference]: Start difference. First operand 2466 states and 4621 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:11:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:26,216 INFO L93 Difference]: Finished difference Result 4920 states and 9226 transitions. [2024-11-19 05:11:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 05:11:26,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-19 05:11:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:26,244 INFO L225 Difference]: With dead ends: 4920 [2024-11-19 05:11:26,245 INFO L226 Difference]: Without dead ends: 2545 [2024-11-19 05:11:26,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:11:26,317 INFO L432 NwaCegarLoop]: 2690 mSDtfsCounter, 3770 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4271 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:26,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4271 Valid, 5758 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 05:11:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-11-19 05:11:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1372. [2024-11-19 05:11:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 865 states have (on average 1.7190751445086705) internal successors, (1487), 1366 states have internal predecessors, (1487), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-19 05:11:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 2493 transitions. [2024-11-19 05:11:26,609 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 2493 transitions. Word has length 155 [2024-11-19 05:11:26,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:26,610 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 2493 transitions. [2024-11-19 05:11:26,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:11:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 2493 transitions. [2024-11-19 05:11:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-19 05:11:26,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:26,612 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:26,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:11:26,612 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:26,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:26,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1701468336, now seen corresponding path program 1 times [2024-11-19 05:11:26,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:26,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666182876] [2024-11-19 05:11:26,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:26,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:27,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:27,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666182876] [2024-11-19 05:11:27,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666182876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:11:27,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976827360] [2024-11-19 05:11:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:27,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:11:27,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:11:27,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:11:27,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:11:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:27,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:11:27,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:11:27,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 05:11:28,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:11:28,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 05:11:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:28,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:11:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:28,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976827360] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:11:28,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:11:28,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-11-19 05:11:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296169949] [2024-11-19 05:11:28,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:11:28,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 05:11:28,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:28,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 05:11:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-19 05:11:28,461 INFO L87 Difference]: Start difference. First operand 1372 states and 2493 transitions. Second operand has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:11:33,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:33,402 INFO L93 Difference]: Finished difference Result 5225 states and 9629 transitions. [2024-11-19 05:11:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 05:11:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 165 [2024-11-19 05:11:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:33,428 INFO L225 Difference]: With dead ends: 5225 [2024-11-19 05:11:33,429 INFO L226 Difference]: Without dead ends: 4101 [2024-11-19 05:11:33,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 323 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-19 05:11:33,435 INFO L432 NwaCegarLoop]: 1891 mSDtfsCounter, 4843 mSDsluCounter, 8494 mSDsCounter, 0 mSdLazyCounter, 4087 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 10385 SdHoareTripleChecker+Invalid, 4593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 4087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:33,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5849 Valid, 10385 Invalid, 4593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [506 Valid, 4087 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-19 05:11:33,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2024-11-19 05:11:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 1719. [2024-11-19 05:11:33,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1208 states have (on average 1.609271523178808) internal successors, (1944), 1709 states have internal predecessors, (1944), 506 states have call successors, (506), 3 states have call predecessors, (506), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2024-11-19 05:11:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2956 transitions. [2024-11-19 05:11:33,907 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2956 transitions. Word has length 165 [2024-11-19 05:11:33,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:33,908 INFO L471 AbstractCegarLoop]: Abstraction has 1719 states and 2956 transitions. [2024-11-19 05:11:33,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:11:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2956 transitions. [2024-11-19 05:11:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-19 05:11:33,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:33,914 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:33,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 05:11:34,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:11:34,119 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:34,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1230488393, now seen corresponding path program 1 times [2024-11-19 05:11:34,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:34,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043456378] [2024-11-19 05:11:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:34,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:38,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:38,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043456378] [2024-11-19 05:11:38,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043456378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:11:38,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170947921] [2024-11-19 05:11:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:38,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:11:38,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:11:38,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:11:38,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:11:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:38,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 05:11:38,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:11:38,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 05:11:38,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:11:39,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:11:39,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:11:39,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 05:11:39,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 05:11:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:39,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:11:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:11:39,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170947921] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:11:39,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:11:39,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2024-11-19 05:11:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710789697] [2024-11-19 05:11:39,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:11:39,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 05:11:39,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:39,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 05:11:39,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2024-11-19 05:11:39,877 INFO L87 Difference]: Start difference. First operand 1719 states and 2956 transitions. Second operand has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:11:53,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:53,517 INFO L93 Difference]: Finished difference Result 10557 states and 19414 transitions. [2024-11-19 05:11:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 05:11:53,518 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 393 [2024-11-19 05:11:53,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:53,582 INFO L225 Difference]: With dead ends: 10557 [2024-11-19 05:11:53,582 INFO L226 Difference]: Without dead ends: 9433 [2024-11-19 05:11:53,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 777 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=426, Unknown=0, NotChecked=0, Total=650 [2024-11-19 05:11:53,592 INFO L432 NwaCegarLoop]: 1891 mSDtfsCounter, 14780 mSDsluCounter, 18672 mSDsCounter, 0 mSdLazyCounter, 10488 mSolverCounterSat, 2770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17792 SdHoareTripleChecker+Valid, 20563 SdHoareTripleChecker+Invalid, 13258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2770 IncrementalHoareTripleChecker+Valid, 10488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:53,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17792 Valid, 20563 Invalid, 13258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2770 Valid, 10488 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-19 05:11:53,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9433 states. [2024-11-19 05:11:54,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9433 to 2583. [2024-11-19 05:11:54,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2066 states have (on average 1.4956437560503388) internal successors, (3090), 2567 states have internal predecessors, (3090), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:11:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 4114 transitions. [2024-11-19 05:11:54,442 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 4114 transitions. Word has length 393 [2024-11-19 05:11:54,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:54,443 INFO L471 AbstractCegarLoop]: Abstraction has 2583 states and 4114 transitions. [2024-11-19 05:11:54,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.5) internal successors, (710), 20 states have internal predecessors, (710), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 05:11:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 4114 transitions. [2024-11-19 05:11:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-19 05:11:54,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:54,469 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:54,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 05:11:54,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-19 05:11:54,674 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:54,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:54,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1818928709, now seen corresponding path program 2 times [2024-11-19 05:11:54,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:54,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566598795] [2024-11-19 05:11:54,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:11:54,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:55,059 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:11:55,059 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:11:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:11:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:55,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566598795] [2024-11-19 05:11:55,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566598795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:55,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:55,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 05:11:55,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596177507] [2024-11-19 05:11:55,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:55,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 05:11:55,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:55,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 05:11:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:11:55,334 INFO L87 Difference]: Start difference. First operand 2583 states and 4114 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:11:55,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:11:55,910 INFO L93 Difference]: Finished difference Result 3721 states and 6296 transitions. [2024-11-19 05:11:55,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:11:55,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 849 [2024-11-19 05:11:55,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:11:55,929 INFO L225 Difference]: With dead ends: 3721 [2024-11-19 05:11:55,929 INFO L226 Difference]: Without dead ends: 2598 [2024-11-19 05:11:55,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 05:11:55,935 INFO L432 NwaCegarLoop]: 2347 mSDtfsCounter, 53 mSDsluCounter, 11376 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 13723 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:11:55,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 13723 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:11:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2024-11-19 05:11:56,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2594. [2024-11-19 05:11:56,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2077 states have (on average 1.4930187770823302) internal successors, (3101), 2578 states have internal predecessors, (3101), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:11:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 4125 transitions. [2024-11-19 05:11:56,211 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 4125 transitions. Word has length 849 [2024-11-19 05:11:56,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:11:56,212 INFO L471 AbstractCegarLoop]: Abstraction has 2594 states and 4125 transitions. [2024-11-19 05:11:56,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:11:56,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 4125 transitions. [2024-11-19 05:11:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-19 05:11:56,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:11:56,231 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:11:56,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:11:56,231 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:11:56,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:11:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1663678876, now seen corresponding path program 1 times [2024-11-19 05:11:56,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:11:56,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133361449] [2024-11-19 05:11:56,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:11:56,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:11:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:11:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:11:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:11:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133361449] [2024-11-19 05:11:59,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133361449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:11:59,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:11:59,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 05:11:59,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593478168] [2024-11-19 05:11:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:11:59,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 05:11:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:11:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 05:11:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 05:11:59,664 INFO L87 Difference]: Start difference. First operand 2594 states and 4125 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:12:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:12:00,114 INFO L93 Difference]: Finished difference Result 3733 states and 6305 transitions. [2024-11-19 05:12:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 05:12:00,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 850 [2024-11-19 05:12:00,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:12:00,131 INFO L225 Difference]: With dead ends: 3733 [2024-11-19 05:12:00,131 INFO L226 Difference]: Without dead ends: 2599 [2024-11-19 05:12:00,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:12:00,138 INFO L432 NwaCegarLoop]: 2354 mSDtfsCounter, 21 mSDsluCounter, 9109 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 11463 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:12:00,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 11463 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:12:00,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-19 05:12:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2598. [2024-11-19 05:12:00,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2081 states have (on average 1.4925516578567997) internal successors, (3106), 2582 states have internal predecessors, (3106), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:12:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 4130 transitions. [2024-11-19 05:12:00,399 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 4130 transitions. Word has length 850 [2024-11-19 05:12:00,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:12:00,401 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 4130 transitions. [2024-11-19 05:12:00,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:12:00,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 4130 transitions. [2024-11-19 05:12:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-19 05:12:00,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:12:00,419 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:12:00,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:12:00,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:12:00,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:12:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1400202232, now seen corresponding path program 1 times [2024-11-19 05:12:00,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:12:00,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416094074] [2024-11-19 05:12:00,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:12:00,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:12:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:12:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:12:03,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:12:03,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416094074] [2024-11-19 05:12:03,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416094074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:12:03,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:12:03,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 05:12:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746385849] [2024-11-19 05:12:03,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:12:03,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 05:12:03,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:12:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 05:12:03,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 05:12:03,095 INFO L87 Difference]: Start difference. First operand 2598 states and 4130 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:12:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:12:03,585 INFO L93 Difference]: Finished difference Result 3744 states and 6319 transitions. [2024-11-19 05:12:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:12:03,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 850 [2024-11-19 05:12:03,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:12:03,599 INFO L225 Difference]: With dead ends: 3744 [2024-11-19 05:12:03,599 INFO L226 Difference]: Without dead ends: 2606 [2024-11-19 05:12:03,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:12:03,605 INFO L432 NwaCegarLoop]: 2347 mSDtfsCounter, 24 mSDsluCounter, 13661 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 16008 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 05:12:03,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 16008 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 05:12:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2024-11-19 05:12:03,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2598. [2024-11-19 05:12:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2081 states have (on average 1.4925516578567997) internal successors, (3106), 2582 states have internal predecessors, (3106), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:12:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 4130 transitions. [2024-11-19 05:12:03,855 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 4130 transitions. Word has length 850 [2024-11-19 05:12:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:12:03,857 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 4130 transitions. [2024-11-19 05:12:03,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:12:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 4130 transitions. [2024-11-19 05:12:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-19 05:12:03,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:12:03,894 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:12:03,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:12:03,895 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:12:03,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:12:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1759297775, now seen corresponding path program 1 times [2024-11-19 05:12:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:12:03,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128597290] [2024-11-19 05:12:03,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:12:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:12:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:12:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-19 05:12:06,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:12:06,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128597290] [2024-11-19 05:12:06,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128597290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:12:06,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:12:06,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:12:06,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132334529] [2024-11-19 05:12:06,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:12:06,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:12:06,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:12:06,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:12:06,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:12:06,709 INFO L87 Difference]: Start difference. First operand 2598 states and 4130 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:12:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 05:12:07,318 INFO L93 Difference]: Finished difference Result 3747 states and 6324 transitions. [2024-11-19 05:12:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:12:07,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-19 05:12:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 05:12:07,334 INFO L225 Difference]: With dead ends: 3747 [2024-11-19 05:12:07,334 INFO L226 Difference]: Without dead ends: 2609 [2024-11-19 05:12:07,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 05:12:07,340 INFO L432 NwaCegarLoop]: 2348 mSDtfsCounter, 32 mSDsluCounter, 16019 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 18367 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 05:12:07,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 18367 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 05:12:07,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2024-11-19 05:12:07,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2606. [2024-11-19 05:12:07,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2089 states have (on average 1.4916227860220201) internal successors, (3116), 2590 states have internal predecessors, (3116), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-19 05:12:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 4140 transitions. [2024-11-19 05:12:07,723 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 4140 transitions. Word has length 851 [2024-11-19 05:12:07,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 05:12:07,724 INFO L471 AbstractCegarLoop]: Abstraction has 2606 states and 4140 transitions. [2024-11-19 05:12:07,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 05:12:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 4140 transitions. [2024-11-19 05:12:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-19 05:12:07,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 05:12:07,738 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:12:07,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:12:07,739 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 05:12:07,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:12:07,739 INFO L85 PathProgramCache]: Analyzing trace with hash 552608955, now seen corresponding path program 1 times [2024-11-19 05:12:07,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:12:07,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292702865] [2024-11-19 05:12:07,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:12:07,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:12:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:12:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 05:12:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:12:18,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292702865] [2024-11-19 05:12:18,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292702865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:12:18,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702440756] [2024-11-19 05:12:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:12:18,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:12:18,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:12:18,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:12:18,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process