./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 04:59:20,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 04:59:20,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 04:59:20,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 04:59:20,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 04:59:20,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 04:59:20,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 04:59:20,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 04:59:20,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 04:59:20,112 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 04:59:20,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 04:59:20,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 04:59:20,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 04:59:20,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 04:59:20,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 04:59:20,114 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 04:59:20,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 04:59:20,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 04:59:20,115 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2025-02-08 04:59:20,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 04:59:20,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 04:59:20,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 04:59:20,394 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 04:59:20,394 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 04:59:20,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2025-02-08 04:59:21,625 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68a65b074/2c309ad14e2e4122adf08ea4d9c2ad09/FLAGecbfa855f [2025-02-08 04:59:22,138 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 04:59:22,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2025-02-08 04:59:22,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68a65b074/2c309ad14e2e4122adf08ea4d9c2ad09/FLAGecbfa855f [2025-02-08 04:59:22,226 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68a65b074/2c309ad14e2e4122adf08ea4d9c2ad09 [2025-02-08 04:59:22,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 04:59:22,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 04:59:22,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 04:59:22,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 04:59:22,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 04:59:22,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 04:59:22" (1/1) ... [2025-02-08 04:59:22,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300553ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:22, skipping insertion in model container [2025-02-08 04:59:22,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 04:59:22" (1/1) ... [2025-02-08 04:59:22,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 04:59:22,730 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[33021,33034] [2025-02-08 04:59:22,953 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[84583,84596] [2025-02-08 04:59:22,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 04:59:22,979 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 04:59:23,018 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[33021,33034] [2025-02-08 04:59:23,155 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i[84583,84596] [2025-02-08 04:59:23,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 04:59:23,185 INFO L204 MainTranslator]: Completed translation [2025-02-08 04:59:23,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23 WrapperNode [2025-02-08 04:59:23,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 04:59:23,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 04:59:23,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 04:59:23,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 04:59:23,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,353 INFO L138 Inliner]: procedures = 177, calls = 722, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3244 [2025-02-08 04:59:23,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 04:59:23,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 04:59:23,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 04:59:23,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 04:59:23,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,457 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2025-02-08 04:59:23,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,526 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 04:59:23,589 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 04:59:23,589 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 04:59:23,589 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 04:59:23,590 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (1/1) ... [2025-02-08 04:59:23,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 04:59:23,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 04:59:23,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 04:59:23,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 04:59:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 04:59:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 04:59:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 04:59:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 04:59:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 04:59:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 04:59:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 04:59:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 04:59:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 04:59:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 04:59:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 04:59:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 04:59:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 04:59:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 04:59:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 04:59:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 04:59:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 04:59:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 04:59:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 04:59:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 04:59:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 04:59:23,861 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 04:59:23,863 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 04:59:26,524 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 04:59:26,748 INFO L? ?]: Removed 796 outVars from TransFormulas that were not future-live. [2025-02-08 04:59:26,749 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 04:59:26,855 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 04:59:26,856 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-08 04:59:26,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 04:59:26 BoogieIcfgContainer [2025-02-08 04:59:26,859 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 04:59:26,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 04:59:26,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 04:59:26,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 04:59:26,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 04:59:22" (1/3) ... [2025-02-08 04:59:26,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b316834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 04:59:26, skipping insertion in model container [2025-02-08 04:59:26,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:59:23" (2/3) ... [2025-02-08 04:59:26,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b316834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 04:59:26, skipping insertion in model container [2025-02-08 04:59:26,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 04:59:26" (3/3) ... [2025-02-08 04:59:26,870 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-1.i [2025-02-08 04:59:26,884 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 04:59:26,886 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test9-1.i that has 5 procedures, 1374 locations, 1 initial locations, 33 loop locations, and 2 error locations. [2025-02-08 04:59:26,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 04:59:27,001 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;@2b613464, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 04:59:27,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 04:59:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 857 states have (on average 1.840140023337223) internal successors, (1577), 1359 states have internal predecessors, (1577), 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) [2025-02-08 04:59:27,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 04:59:27,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:27,017 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 04:59:27,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:27,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:27,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1169923548, now seen corresponding path program 1 times [2025-02-08 04:59:27,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:27,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558003742] [2025-02-08 04:59:27,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:27,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:27,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 04:59:27,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 04:59:27,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:27,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 04:59:27,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:27,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558003742] [2025-02-08 04:59:27,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558003742] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:27,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:27,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 04:59:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949495534] [2025-02-08 04:59:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:27,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 04:59:27,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:27,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 04:59:27,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 04:59:27,217 INFO L87 Difference]: Start difference. First operand has 1366 states, 857 states have (on average 1.840140023337223) internal successors, (1577), 1359 states have internal predecessors, (1577), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 04:59:27,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:27,488 INFO L93 Difference]: Finished difference Result 2731 states and 5665 transitions. [2025-02-08 04:59:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 04:59:27,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 04:59:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:27,577 INFO L225 Difference]: With dead ends: 2731 [2025-02-08 04:59:27,577 INFO L226 Difference]: Without dead ends: 1359 [2025-02-08 04:59:27,593 INFO L434 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 [2025-02-08 04:59:27,596 INFO L435 NwaCegarLoop]: 2486 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:27,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2486 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 04:59:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2025-02-08 04:59:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1359. [2025-02-08 04:59:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 853 states have (on average 1.776084407971864) internal successors, (1515), 1353 states have internal predecessors, (1515), 503 states have call successors, (503), 2 states have call predecessors, (503), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 04:59:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 2021 transitions. [2025-02-08 04:59:27,711 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 2021 transitions. Word has length 8 [2025-02-08 04:59:27,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:27,712 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 2021 transitions. [2025-02-08 04:59:27,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 04:59:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 2021 transitions. [2025-02-08 04:59:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-02-08 04:59:27,716 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:27,717 INFO L218 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] [2025-02-08 04:59:27,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 04:59:27,717 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:27,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash 12516499, now seen corresponding path program 1 times [2025-02-08 04:59:27,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:27,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466060384] [2025-02-08 04:59:27,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:27,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-08 04:59:27,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-08 04:59:27,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:27,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 04:59:28,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:28,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466060384] [2025-02-08 04:59:28,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466060384] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:28,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:28,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 04:59:28,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442063514] [2025-02-08 04:59:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:28,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 04:59:28,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:28,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 04:59:28,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 04:59:28,178 INFO L87 Difference]: Start difference. First operand 1359 states and 2021 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2025-02-08 04:59:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:29,181 INFO L93 Difference]: Finished difference Result 3869 states and 5768 transitions. [2025-02-08 04:59:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 04:59:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2025-02-08 04:59:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:29,204 INFO L225 Difference]: With dead ends: 3869 [2025-02-08 04:59:29,204 INFO L226 Difference]: Without dead ends: 2708 [2025-02-08 04:59:29,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 04:59:29,238 INFO L435 NwaCegarLoop]: 2000 mSDtfsCounter, 1503 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:29,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 5455 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 04:59:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2025-02-08 04:59:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 1361. [2025-02-08 04:59:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 855 states have (on average 1.774269005847953) internal successors, (1517), 1355 states have internal predecessors, (1517), 503 states have call successors, (503), 2 states have call predecessors, (503), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 04:59:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 2023 transitions. [2025-02-08 04:59:29,299 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 2023 transitions. Word has length 62 [2025-02-08 04:59:29,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:29,299 INFO L471 AbstractCegarLoop]: Abstraction has 1361 states and 2023 transitions. [2025-02-08 04:59:29,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2025-02-08 04:59:29,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 2023 transitions. [2025-02-08 04:59:29,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 04:59:29,304 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:29,304 INFO L218 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] [2025-02-08 04:59:29,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 04:59:29,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:29,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:29,305 INFO L85 PathProgramCache]: Analyzing trace with hash -428969254, now seen corresponding path program 1 times [2025-02-08 04:59:29,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:29,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108407801] [2025-02-08 04:59:29,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:29,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:29,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 04:59:29,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 04:59:29,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:29,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 04:59:29,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108407801] [2025-02-08 04:59:29,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108407801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:29,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:29,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 04:59:29,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74988147] [2025-02-08 04:59:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:29,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 04:59:29,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:29,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 04:59:29,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 04:59:29,717 INFO L87 Difference]: Start difference. First operand 1361 states and 2023 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2025-02-08 04:59:29,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:29,910 INFO L93 Difference]: Finished difference Result 2677 states and 3977 transitions. [2025-02-08 04:59:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 04:59:29,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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 137 [2025-02-08 04:59:29,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:29,920 INFO L225 Difference]: With dead ends: 2677 [2025-02-08 04:59:29,920 INFO L226 Difference]: Without dead ends: 1319 [2025-02-08 04:59:29,926 INFO L434 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 [2025-02-08 04:59:29,928 INFO L435 NwaCegarLoop]: 1888 mSDtfsCounter, 30 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:29,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5645 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 04:59:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2025-02-08 04:59:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2025-02-08 04:59:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 813 states have (on average 1.7712177121771218) internal successors, (1440), 1313 states have internal predecessors, (1440), 503 states have call successors, (503), 2 states have call predecessors, (503), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 04:59:29,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1946 transitions. [2025-02-08 04:59:29,970 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1946 transitions. Word has length 137 [2025-02-08 04:59:29,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:29,970 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1946 transitions. [2025-02-08 04:59:29,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2025-02-08 04:59:29,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1946 transitions. [2025-02-08 04:59:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 04:59:29,975 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:29,975 INFO L218 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] [2025-02-08 04:59:29,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 04:59:29,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:29,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1388049684, now seen corresponding path program 1 times [2025-02-08 04:59:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105236243] [2025-02-08 04:59:29,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:30,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-08 04:59:30,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 04:59:30,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:30,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:30,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 04:59:30,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:30,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105236243] [2025-02-08 04:59:30,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105236243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:30,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:30,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 04:59:30,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460044950] [2025-02-08 04:59:30,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:30,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 04:59:30,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:30,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 04:59:30,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 04:59:30,244 INFO L87 Difference]: Start difference. First operand 1319 states and 1946 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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) [2025-02-08 04:59:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:30,454 INFO L93 Difference]: Finished difference Result 3856 states and 5709 transitions. [2025-02-08 04:59:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 04:59:30,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 137 [2025-02-08 04:59:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:30,472 INFO L225 Difference]: With dead ends: 3856 [2025-02-08 04:59:30,473 INFO L226 Difference]: Without dead ends: 2540 [2025-02-08 04:59:30,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 04:59:30,481 INFO L435 NwaCegarLoop]: 2080 mSDtfsCounter, 1258 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:30,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 3972 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 04:59:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2025-02-08 04:59:30,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2038. [2025-02-08 04:59:30,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 1532 states have (on average 1.7996083550913837) internal successors, (2757), 2032 states have internal predecessors, (2757), 503 states have call successors, (503), 2 states have call predecessors, (503), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 04:59:30,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 3263 transitions. [2025-02-08 04:59:30,556 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 3263 transitions. Word has length 137 [2025-02-08 04:59:30,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:30,557 INFO L471 AbstractCegarLoop]: Abstraction has 2038 states and 3263 transitions. [2025-02-08 04:59:30,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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) [2025-02-08 04:59:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 3263 transitions. [2025-02-08 04:59:30,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-02-08 04:59:30,559 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:30,560 INFO L218 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] [2025-02-08 04:59:30,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 04:59:30,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:30,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash 315239395, now seen corresponding path program 1 times [2025-02-08 04:59:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223657304] [2025-02-08 04:59:30,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:30,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-02-08 04:59:30,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-02-08 04:59:30,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:30,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 04:59:30,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:30,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223657304] [2025-02-08 04:59:30,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223657304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:30,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:30,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 04:59:30,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096544427] [2025-02-08 04:59:30,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:30,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 04:59:30,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:30,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 04:59:30,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 04:59:30,959 INFO L87 Difference]: Start difference. First operand 2038 states and 3263 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-02-08 04:59:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:31,145 INFO L93 Difference]: Finished difference Result 3747 states and 6065 transitions. [2025-02-08 04:59:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 04:59:31,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 152 [2025-02-08 04:59:31,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:31,163 INFO L225 Difference]: With dead ends: 3747 [2025-02-08 04:59:31,163 INFO L226 Difference]: Without dead ends: 1954 [2025-02-08 04:59:31,170 INFO L434 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 [2025-02-08 04:59:31,171 INFO L435 NwaCegarLoop]: 1814 mSDtfsCounter, 30 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5423 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:31,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5423 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 04:59:31,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2025-02-08 04:59:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954. [2025-02-08 04:59:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1448 states have (on average 1.7976519337016574) internal successors, (2603), 1948 states have internal predecessors, (2603), 503 states have call successors, (503), 2 states have call predecessors, (503), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 04:59:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 3109 transitions. [2025-02-08 04:59:31,231 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 3109 transitions. Word has length 152 [2025-02-08 04:59:31,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:31,232 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 3109 transitions. [2025-02-08 04:59:31,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-02-08 04:59:31,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 3109 transitions. [2025-02-08 04:59:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-02-08 04:59:31,234 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:31,234 INFO L218 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] [2025-02-08 04:59:31,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 04:59:31,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:31,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:31,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1191062332, now seen corresponding path program 1 times [2025-02-08 04:59:31,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:31,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092764443] [2025-02-08 04:59:31,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:31,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:31,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-02-08 04:59:31,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-02-08 04:59:31,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:31,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:31,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092764443] [2025-02-08 04:59:31,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092764443] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:31,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:31,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 04:59:31,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169236774] [2025-02-08 04:59:31,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:31,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 04:59:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:31,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 04:59:31,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 04:59:31,518 INFO L87 Difference]: Start difference. First operand 1954 states and 3109 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2025-02-08 04:59:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:32,083 INFO L93 Difference]: Finished difference Result 4397 states and 6703 transitions. [2025-02-08 04:59:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 04:59:32,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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 152 [2025-02-08 04:59:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:32,100 INFO L225 Difference]: With dead ends: 4397 [2025-02-08 04:59:32,100 INFO L226 Difference]: Without dead ends: 2532 [2025-02-08 04:59:32,107 INFO L434 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 [2025-02-08 04:59:32,109 INFO L435 NwaCegarLoop]: 1920 mSDtfsCounter, 4862 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:32,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4863 Valid, 4321 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 04:59:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2025-02-08 04:59:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1363. [2025-02-08 04:59:32,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 857 states have (on average 1.7246207701283547) internal successors, (1478), 1357 states have internal predecessors, (1478), 503 states have call successors, (503), 2 states have call predecessors, (503), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 04:59:32,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1984 transitions. [2025-02-08 04:59:32,203 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1984 transitions. Word has length 152 [2025-02-08 04:59:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:32,204 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1984 transitions. [2025-02-08 04:59:32,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2025-02-08 04:59:32,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1984 transitions. [2025-02-08 04:59:32,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-02-08 04:59:32,208 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:32,208 INFO L218 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] [2025-02-08 04:59:32,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 04:59:32,209 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:32,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2085603150, now seen corresponding path program 1 times [2025-02-08 04:59:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:32,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063915425] [2025-02-08 04:59:32,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:32,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:32,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-08 04:59:32,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-08 04:59:32,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:32,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:33,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063915425] [2025-02-08 04:59:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063915425] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 04:59:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572131921] [2025-02-08 04:59:33,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:33,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 04:59:33,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 04:59:33,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 04:59:33,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 04:59:33,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-08 04:59:33,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-08 04:59:33,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:33,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:33,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 04:59:33,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 04:59:33,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-02-08 04:59:33,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 04:59:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:33,642 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 04:59:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:33,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572131921] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 04:59:33,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 04:59:33,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2025-02-08 04:59:33,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512959333] [2025-02-08 04:59:33,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 04:59:33,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 04:59:33,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:33,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 04:59:33,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-02-08 04:59:33,851 INFO L87 Difference]: Start difference. First operand 1363 states and 1984 transitions. Second operand has 12 states, 12 states have (on average 26.833333333333332) internal successors, (322), 12 states have internal predecessors, (322), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 04:59:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:36,946 INFO L93 Difference]: Finished difference Result 5196 states and 7600 transitions. [2025-02-08 04:59:36,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 04:59:36,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.833333333333332) internal successors, (322), 12 states have internal predecessors, (322), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 162 [2025-02-08 04:59:36,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:36,969 INFO L225 Difference]: With dead ends: 5196 [2025-02-08 04:59:36,969 INFO L226 Difference]: Without dead ends: 4077 [2025-02-08 04:59:36,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 316 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-02-08 04:59:36,976 INFO L435 NwaCegarLoop]: 1982 mSDtfsCounter, 4133 mSDsluCounter, 8880 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 10862 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:36,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 10862 Invalid, 3351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [506 Valid, 2845 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-08 04:59:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2025-02-08 04:59:37,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 1705. [2025-02-08 04:59:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1195 states have (on average 1.6150627615062763) internal successors, (1930), 1695 states have internal predecessors, (1930), 506 states have call successors, (506), 3 states have call predecessors, (506), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 04:59:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2442 transitions. [2025-02-08 04:59:37,116 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2442 transitions. Word has length 162 [2025-02-08 04:59:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:37,117 INFO L471 AbstractCegarLoop]: Abstraction has 1705 states and 2442 transitions. [2025-02-08 04:59:37,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.833333333333332) internal successors, (322), 12 states have internal predecessors, (322), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 04:59:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2442 transitions. [2025-02-08 04:59:37,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2025-02-08 04:59:37,123 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:37,123 INFO L218 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, 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] [2025-02-08 04:59:37,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 04:59:37,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 04:59:37,327 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:37,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:37,328 INFO L85 PathProgramCache]: Analyzing trace with hash 849388687, now seen corresponding path program 1 times [2025-02-08 04:59:37,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:37,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875531121] [2025-02-08 04:59:37,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:37,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:37,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 387 statements into 1 equivalence classes. [2025-02-08 04:59:37,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 387 of 387 statements. [2025-02-08 04:59:37,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:37,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:40,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:40,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875531121] [2025-02-08 04:59:40,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875531121] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 04:59:40,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470780588] [2025-02-08 04:59:40,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:40,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 04:59:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 04:59:40,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 04:59:40,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 04:59:41,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 387 statements into 1 equivalence classes. [2025-02-08 04:59:41,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 387 of 387 statements. [2025-02-08 04:59:41,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:41,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:41,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 04:59:41,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 04:59:41,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-02-08 04:59:41,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 04:59:41,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 04:59:41,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 04:59:42,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 04:59:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:42,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 04:59:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 04:59:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470780588] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 04:59:42,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 04:59:42,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2025-02-08 04:59:42,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440966995] [2025-02-08 04:59:42,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 04:59:42,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 04:59:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:42,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 04:59:42,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2025-02-08 04:59:42,656 INFO L87 Difference]: Start difference. First operand 1705 states and 2442 transitions. Second operand has 23 states, 23 states have (on average 43.34782608695652) internal successors, (997), 23 states have internal predecessors, (997), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 04:59:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:48,506 INFO L93 Difference]: Finished difference Result 10504 states and 15361 transitions. [2025-02-08 04:59:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-08 04:59:48,507 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 43.34782608695652) internal successors, (997), 23 states have internal predecessors, (997), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 387 [2025-02-08 04:59:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:48,559 INFO L225 Difference]: With dead ends: 10504 [2025-02-08 04:59:48,559 INFO L226 Difference]: Without dead ends: 9385 [2025-02-08 04:59:48,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 762 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2025-02-08 04:59:48,569 INFO L435 NwaCegarLoop]: 5746 mSDtfsCounter, 17091 mSDsluCounter, 38502 mSDsCounter, 0 mSdLazyCounter, 9880 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17101 SdHoareTripleChecker+Valid, 44248 SdHoareTripleChecker+Invalid, 10401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 9880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:48,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17101 Valid, 44248 Invalid, 10401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [521 Valid, 9880 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2025-02-08 04:59:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9385 states. [2025-02-08 04:59:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9385 to 2557. [2025-02-08 04:59:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2041 states have (on average 1.5012248897599216) internal successors, (3064), 2541 states have internal predecessors, (3064), 512 states have call successors, (512), 3 states have call predecessors, (512), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 04:59:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 3588 transitions. [2025-02-08 04:59:48,793 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 3588 transitions. Word has length 387 [2025-02-08 04:59:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:48,794 INFO L471 AbstractCegarLoop]: Abstraction has 2557 states and 3588 transitions. [2025-02-08 04:59:48,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 43.34782608695652) internal successors, (997), 23 states have internal predecessors, (997), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 04:59:48,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 3588 transitions. [2025-02-08 04:59:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2025-02-08 04:59:48,812 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:48,813 INFO L218 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, 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] [2025-02-08 04:59:48,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 04:59:49,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 04:59:49,014 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:49,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1909433455, now seen corresponding path program 2 times [2025-02-08 04:59:49,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:49,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372677296] [2025-02-08 04:59:49,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 04:59:49,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:49,304 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 837 statements into 2 equivalence classes. [2025-02-08 04:59:49,334 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 72 of 837 statements. [2025-02-08 04:59:49,335 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 04:59:49,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 04:59:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3381 trivial. 0 not checked. [2025-02-08 04:59:49,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 04:59:49,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372677296] [2025-02-08 04:59:49,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372677296] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 04:59:49,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 04:59:49,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 04:59:49,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192850077] [2025-02-08 04:59:49,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 04:59:49,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 04:59:49,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 04:59:49,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 04:59:49,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 04:59:49,535 INFO L87 Difference]: Start difference. First operand 2557 states and 3588 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2025-02-08 04:59:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 04:59:50,025 INFO L93 Difference]: Finished difference Result 3680 states and 5252 transitions. [2025-02-08 04:59:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 04:59:50,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 837 [2025-02-08 04:59:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 04:59:50,038 INFO L225 Difference]: With dead ends: 3680 [2025-02-08 04:59:50,038 INFO L226 Difference]: Without dead ends: 2562 [2025-02-08 04:59:50,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 04:59:50,044 INFO L435 NwaCegarLoop]: 1818 mSDtfsCounter, 14 mSDsluCounter, 7008 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8826 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 04:59:50,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8826 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 04:59:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2025-02-08 04:59:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2559. [2025-02-08 04:59:50,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 2043 states have (on average 1.500734214390602) internal successors, (3066), 2543 states have internal predecessors, (3066), 512 states have call successors, (512), 3 states have call predecessors, (512), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 04:59:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3590 transitions. [2025-02-08 04:59:50,167 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3590 transitions. Word has length 837 [2025-02-08 04:59:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 04:59:50,169 INFO L471 AbstractCegarLoop]: Abstraction has 2559 states and 3590 transitions. [2025-02-08 04:59:50,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2025-02-08 04:59:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3590 transitions. [2025-02-08 04:59:50,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2025-02-08 04:59:50,191 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 04:59:50,191 INFO L218 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, 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] [2025-02-08 04:59:50,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 04:59:50,191 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 04:59:50,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 04:59:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1023575004, now seen corresponding path program 1 times [2025-02-08 04:59:50,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 04:59:50,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466155740] [2025-02-08 04:59:50,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 04:59:50,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 04:59:50,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 838 statements into 1 equivalence classes. [2025-02-08 04:59:50,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 838 of 838 statements. [2025-02-08 04:59:50,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 04:59:50,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:00:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 0 proven. 3377 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:00:00,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:00:00,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466155740] [2025-02-08 05:00:00,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466155740] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:00:00,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686321587] [2025-02-08 05:00:00,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:00:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:00:00,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:00:00,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:00:00,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:00:00,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 838 statements into 1 equivalence classes. [2025-02-08 05:00:01,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 838 of 838 statements. [2025-02-08 05:00:01,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:00:01,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:00:01,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 4161 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 05:00:01,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:00:01,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-02-08 05:00:01,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:01,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:01,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:01,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 05:00:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 0 proven. 3377 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:00:02,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:00:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 0 proven. 3377 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:00:03,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686321587] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:00:03,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:00:03,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 42 [2025-02-08 05:00:03,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864546660] [2025-02-08 05:00:03,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:00:03,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-02-08 05:00:03,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:00:03,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-02-08 05:00:03,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=1127, Unknown=0, NotChecked=0, Total=1722 [2025-02-08 05:00:03,605 INFO L87 Difference]: Start difference. First operand 2559 states and 3590 transitions. Second operand has 42 states, 42 states have (on average 55.904761904761905) internal successors, (2348), 42 states have internal predecessors, (2348), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 05:00:20,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:00:20,424 INFO L93 Difference]: Finished difference Result 18920 states and 27605 transitions. [2025-02-08 05:00:20,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-02-08 05:00:20,425 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 55.904761904761905) internal successors, (2348), 42 states have internal predecessors, (2348), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 838 [2025-02-08 05:00:20,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:00:20,527 INFO L225 Difference]: With dead ends: 18920 [2025-02-08 05:00:20,528 INFO L226 Difference]: Without dead ends: 17799 [2025-02-08 05:00:20,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1717 GetRequests, 1653 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1333 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=2778, Unknown=0, NotChecked=0, Total=3906 [2025-02-08 05:00:20,542 INFO L435 NwaCegarLoop]: 11644 mSDtfsCounter, 33595 mSDsluCounter, 115978 mSDsCounter, 0 mSdLazyCounter, 33822 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33617 SdHoareTripleChecker+Valid, 127622 SdHoareTripleChecker+Invalid, 34366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 33822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2025-02-08 05:00:20,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33617 Valid, 127622 Invalid, 34366 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [544 Valid, 33822 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2025-02-08 05:00:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17799 states. [2025-02-08 05:00:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17799 to 4263. [2025-02-08 05:00:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 3735 states have (on average 1.4281124497991968) internal successors, (5334), 4235 states have internal predecessors, (5334), 524 states have call successors, (524), 3 states have call predecessors, (524), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-08 05:00:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 5882 transitions. [2025-02-08 05:00:20,912 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 5882 transitions. Word has length 838 [2025-02-08 05:00:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:00:20,915 INFO L471 AbstractCegarLoop]: Abstraction has 4263 states and 5882 transitions. [2025-02-08 05:00:20,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 55.904761904761905) internal successors, (2348), 42 states have internal predecessors, (2348), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 05:00:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 5882 transitions. [2025-02-08 05:00:20,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1739 [2025-02-08 05:00:20,947 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:00:20,948 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2025-02-08 05:00:20,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 05:00:21,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:00:21,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 05:00:21,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:00:21,151 INFO L85 PathProgramCache]: Analyzing trace with hash 385213468, now seen corresponding path program 2 times [2025-02-08 05:00:21,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:00:21,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069826700] [2025-02-08 05:00:21,151 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:00:21,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:00:21,718 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1738 statements into 2 equivalence classes. [2025-02-08 05:00:21,732 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 73 of 1738 statements. [2025-02-08 05:00:21,732 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:00:21,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:00:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 17331 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17331 trivial. 0 not checked. [2025-02-08 05:00:21,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:00:21,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069826700] [2025-02-08 05:00:21,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069826700] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:00:21,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:00:21,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:00:21,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176227137] [2025-02-08 05:00:21,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:00:21,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:00:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:00:21,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:00:21,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:00:21,903 INFO L87 Difference]: Start difference. First operand 4263 states and 5882 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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) [2025-02-08 05:00:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:00:22,240 INFO L93 Difference]: Finished difference Result 5383 states and 7540 transitions. [2025-02-08 05:00:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:00:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 1738 [2025-02-08 05:00:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:00:22,261 INFO L225 Difference]: With dead ends: 5383 [2025-02-08 05:00:22,262 INFO L226 Difference]: Without dead ends: 4263 [2025-02-08 05:00:22,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:00:22,270 INFO L435 NwaCegarLoop]: 1822 mSDtfsCounter, 17 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:00:22,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5351 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:00:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2025-02-08 05:00:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 4263. [2025-02-08 05:00:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 3735 states have (on average 1.4278447121820617) internal successors, (5333), 4235 states have internal predecessors, (5333), 524 states have call successors, (524), 3 states have call predecessors, (524), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-08 05:00:22,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 5881 transitions. [2025-02-08 05:00:22,510 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 5881 transitions. Word has length 1738 [2025-02-08 05:00:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:00:22,513 INFO L471 AbstractCegarLoop]: Abstraction has 4263 states and 5881 transitions. [2025-02-08 05:00:22,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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) [2025-02-08 05:00:22,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 5881 transitions. [2025-02-08 05:00:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1739 [2025-02-08 05:00:22,573 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:00:22,574 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2025-02-08 05:00:22,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 05:00:22,574 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 05:00:22,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:00:22,577 INFO L85 PathProgramCache]: Analyzing trace with hash -713583005, now seen corresponding path program 1 times [2025-02-08 05:00:22,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:00:22,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967567836] [2025-02-08 05:00:22,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:00:22,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:00:23,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1738 statements into 1 equivalence classes. [2025-02-08 05:00:24,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1738 of 1738 statements. [2025-02-08 05:00:24,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:00:24,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:00:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 17331 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17331 trivial. 0 not checked. [2025-02-08 05:00:26,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:00:26,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967567836] [2025-02-08 05:00:26,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967567836] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:00:26,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:00:26,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 05:00:26,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883668895] [2025-02-08 05:00:26,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:00:26,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 05:00:26,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:00:26,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 05:00:26,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 05:00:26,861 INFO L87 Difference]: Start difference. First operand 4263 states and 5881 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 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) [2025-02-08 05:00:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:00:27,295 INFO L93 Difference]: Finished difference Result 5388 states and 7546 transitions. [2025-02-08 05:00:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 05:00:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 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 1738 [2025-02-08 05:00:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:00:27,315 INFO L225 Difference]: With dead ends: 5388 [2025-02-08 05:00:27,315 INFO L226 Difference]: Without dead ends: 4268 [2025-02-08 05:00:27,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 05:00:27,324 INFO L435 NwaCegarLoop]: 1813 mSDtfsCounter, 14 mSDsluCounter, 8779 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10592 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 05:00:27,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10592 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 05:00:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2025-02-08 05:00:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4267. [2025-02-08 05:00:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 3739 states have (on average 1.427654453062316) internal successors, (5338), 4239 states have internal predecessors, (5338), 524 states have call successors, (524), 3 states have call predecessors, (524), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-08 05:00:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5886 transitions. [2025-02-08 05:00:27,613 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5886 transitions. Word has length 1738 [2025-02-08 05:00:27,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:00:27,615 INFO L471 AbstractCegarLoop]: Abstraction has 4267 states and 5886 transitions. [2025-02-08 05:00:27,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 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) [2025-02-08 05:00:27,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5886 transitions. [2025-02-08 05:00:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1740 [2025-02-08 05:00:27,638 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:00:27,639 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2025-02-08 05:00:27,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 05:00:27,640 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 05:00:27,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:00:27,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1466519378, now seen corresponding path program 1 times [2025-02-08 05:00:27,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:00:27,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074196366] [2025-02-08 05:00:27,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:00:27,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:00:28,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1739 statements into 1 equivalence classes. [2025-02-08 05:00:28,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1739 of 1739 statements. [2025-02-08 05:00:28,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:00:28,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat