./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:05:28,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:05:28,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-04 06:05:28,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:05:28,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:05:28,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:05:28,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:05:28,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:05:28,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 06:05:28,949 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 06:05:28,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:05:28,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:05:28,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:05:28,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:05:28,949 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:05:28,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:05:28,950 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:05:28,951 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:05:28,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:05:28,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:05:28,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:05:28,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:05:28,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:05:28,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:05:28,952 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/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 -> ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 [2025-03-04 06:05:29,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:05:29,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:05:29,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:05:29,188 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:05:29,188 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:05:29,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2025-03-04 06:05:30,360 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704f0f67d/af090dc4c2ca4bd9962263934255157b/FLAGf0e304690 [2025-03-04 06:05:30,642 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:05:30,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2025-03-04 06:05:30,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704f0f67d/af090dc4c2ca4bd9962263934255157b/FLAGf0e304690 [2025-03-04 06:05:30,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704f0f67d/af090dc4c2ca4bd9962263934255157b [2025-03-04 06:05:30,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:05:30,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:05:30,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:05:30,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:05:30,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:05:30,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:05:30" (1/1) ... [2025-03-04 06:05:30,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fefd02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:30, skipping insertion in model container [2025-03-04 06:05:30,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:05:30" (1/1) ... [2025-03-04 06:05:30,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:05:30,947 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2025-03-04 06:05:31,024 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2025-03-04 06:05:31,025 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2025-03-04 06:05:31,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:05:31,053 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:05:31,080 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2025-03-04 06:05:31,124 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2025-03-04 06:05:31,125 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2025-03-04 06:05:31,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:05:31,156 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:05:31,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31 WrapperNode [2025-03-04 06:05:31,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:05:31,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:05:31,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:05:31,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:05:31,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,228 INFO L138 Inliner]: procedures = 176, calls = 320, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1537 [2025-03-04 06:05:31,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:05:31,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:05:31,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:05:31,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:05:31,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,325 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 34, 265]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2025-03-04 06:05:31,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,361 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:05:31,374 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:05:31,374 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:05:31,374 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:05:31,375 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (1/1) ... [2025-03-04 06:05:31,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:05:31,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:05:31,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:05:31,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:05:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 06:05:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 06:05:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 06:05:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 06:05:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 06:05:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:05:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:05:31,583 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:05:31,585 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:05:32,697 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-04 06:05:32,763 INFO L? ?]: Removed 333 outVars from TransFormulas that were not future-live. [2025-03-04 06:05:32,764 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:05:32,839 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:05:32,842 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-04 06:05:32,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:05:32 BoogieIcfgContainer [2025-03-04 06:05:32,843 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:05:32,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:05:32,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:05:32,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:05:32,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:05:30" (1/3) ... [2025-03-04 06:05:32,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6272219c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:05:32, skipping insertion in model container [2025-03-04 06:05:32,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:05:31" (2/3) ... [2025-03-04 06:05:32,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6272219c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:05:32, skipping insertion in model container [2025-03-04 06:05:32,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:05:32" (3/3) ... [2025-03-04 06:05:32,850 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test7-2.i [2025-03-04 06:05:32,860 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:05:32,861 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test7-2.i that has 4 procedures, 430 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2025-03-04 06:05:32,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:05:32,925 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;@1eba6573, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:05:32,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 06:05:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 415 states have (on average 1.6240963855421686) internal successors, (674), 417 states have internal predecessors, (674), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 06:05:32,936 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:32,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:05:32,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:32,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:32,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1649401392, now seen corresponding path program 1 times [2025-03-04 06:05:32,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:32,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637147701] [2025-03-04 06:05:32,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:32,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:33,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 06:05:33,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 06:05:33,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:33,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:05:33,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:33,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637147701] [2025-03-04 06:05:33,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637147701] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:33,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:33,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:05:33,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884471241] [2025-03-04 06:05:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:33,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:05:33,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:33,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:05:33,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:05:33,079 INFO L87 Difference]: Start difference. First operand has 422 states, 415 states have (on average 1.6240963855421686) internal successors, (674), 417 states have internal predecessors, (674), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2025-03-04 06:05:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:33,210 INFO L93 Difference]: Finished difference Result 842 states and 1358 transitions. [2025-03-04 06:05:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:05:33,213 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 [2025-03-04 06:05:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:33,226 INFO L225 Difference]: With dead ends: 842 [2025-03-04 06:05:33,226 INFO L226 Difference]: Without dead ends: 386 [2025-03-04 06:05:33,229 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 [2025-03-04 06:05:33,231 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:33,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 565 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 06:05:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-03-04 06:05:33,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2025-03-04 06:05:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 380 states have (on average 1.4552631578947368) internal successors, (553), 381 states have internal predecessors, (553), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 559 transitions. [2025-03-04 06:05:33,294 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 559 transitions. Word has length 8 [2025-03-04 06:05:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:33,294 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 559 transitions. [2025-03-04 06:05:33,294 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) [2025-03-04 06:05:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 559 transitions. [2025-03-04 06:05:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-04 06:05:33,294 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:33,294 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:05:33,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:05:33,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:33,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash 951570077, now seen corresponding path program 1 times [2025-03-04 06:05:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263830970] [2025-03-04 06:05:33,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:33,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 06:05:33,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 06:05:33,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:33,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:05:33,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:33,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263830970] [2025-03-04 06:05:33,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263830970] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:33,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:33,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:05:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587219510] [2025-03-04 06:05:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:33,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:05:33,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:33,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:05:33,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:05:33,444 INFO L87 Difference]: Start difference. First operand 386 states and 559 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:05:33,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:33,737 INFO L93 Difference]: Finished difference Result 953 states and 1384 transitions. [2025-03-04 06:05:33,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 06:05:33,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-04 06:05:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:33,745 INFO L225 Difference]: With dead ends: 953 [2025-03-04 06:05:33,745 INFO L226 Difference]: Without dead ends: 765 [2025-03-04 06:05:33,746 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 [2025-03-04 06:05:33,747 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 543 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:33,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1566 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 06:05:33,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2025-03-04 06:05:33,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 388. [2025-03-04 06:05:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 382 states have (on average 1.4528795811518325) internal successors, (555), 383 states have internal predecessors, (555), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 561 transitions. [2025-03-04 06:05:33,778 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 561 transitions. Word has length 10 [2025-03-04 06:05:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:33,778 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 561 transitions. [2025-03-04 06:05:33,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:05:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 561 transitions. [2025-03-04 06:05:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-04 06:05:33,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:33,780 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] [2025-03-04 06:05:33,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:05:33,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:33,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1581376066, now seen corresponding path program 1 times [2025-03-04 06:05:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:33,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039190941] [2025-03-04 06:05:33,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:33,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:33,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 06:05:33,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 06:05:33,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:33,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:05:34,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:34,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039190941] [2025-03-04 06:05:34,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039190941] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:34,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:34,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:05:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401115925] [2025-03-04 06:05:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:34,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:05:34,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:34,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:05:34,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:05:34,197 INFO L87 Difference]: Start difference. First operand 388 states and 561 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2025-03-04 06:05:34,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:34,358 INFO L93 Difference]: Finished difference Result 730 states and 1052 transitions. [2025-03-04 06:05:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 06:05:34,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2025-03-04 06:05:34,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:34,361 INFO L225 Difference]: With dead ends: 730 [2025-03-04 06:05:34,361 INFO L226 Difference]: Without dead ends: 346 [2025-03-04 06:05:34,362 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 [2025-03-04 06:05:34,362 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 30 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:34,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1256 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 06:05:34,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-03-04 06:05:34,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2025-03-04 06:05:34,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 340 states have (on average 1.4058823529411764) internal successors, (478), 341 states have internal predecessors, (478), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:34,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 484 transitions. [2025-03-04 06:05:34,377 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 484 transitions. Word has length 84 [2025-03-04 06:05:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:34,378 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 484 transitions. [2025-03-04 06:05:34,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2025-03-04 06:05:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 484 transitions. [2025-03-04 06:05:34,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-04 06:05:34,381 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:34,381 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] [2025-03-04 06:05:34,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:05:34,381 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:34,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:34,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1250537161, now seen corresponding path program 1 times [2025-03-04 06:05:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908651510] [2025-03-04 06:05:34,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:34,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:34,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 06:05:34,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 06:05:34,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:34,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:05:34,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:34,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908651510] [2025-03-04 06:05:34,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908651510] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:34,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:34,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:05:34,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251217527] [2025-03-04 06:05:34,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:34,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:05:34,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:34,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:05:34,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:05:34,614 INFO L87 Difference]: Start difference. First operand 346 states and 484 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2025-03-04 06:05:34,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:34,783 INFO L93 Difference]: Finished difference Result 938 states and 1323 transitions. [2025-03-04 06:05:34,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:05:34,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2025-03-04 06:05:34,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:34,789 INFO L225 Difference]: With dead ends: 938 [2025-03-04 06:05:34,789 INFO L226 Difference]: Without dead ends: 596 [2025-03-04 06:05:34,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:05:34,790 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 296 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:34,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1030 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 06:05:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-03-04 06:05:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 589. [2025-03-04 06:05:34,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 583 states have (on average 1.4236706689536878) internal successors, (830), 584 states have internal predecessors, (830), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 836 transitions. [2025-03-04 06:05:34,820 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 836 transitions. Word has length 84 [2025-03-04 06:05:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:34,820 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 836 transitions. [2025-03-04 06:05:34,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2025-03-04 06:05:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 836 transitions. [2025-03-04 06:05:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-04 06:05:34,825 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:34,826 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] [2025-03-04 06:05:34,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:05:34,826 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:34,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:34,827 INFO L85 PathProgramCache]: Analyzing trace with hash -571842779, now seen corresponding path program 1 times [2025-03-04 06:05:34,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:34,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814253966] [2025-03-04 06:05:34,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:34,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:34,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 06:05:34,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 06:05:34,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:34,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 06:05:35,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:35,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814253966] [2025-03-04 06:05:35,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814253966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:35,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:35,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:05:35,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597297114] [2025-03-04 06:05:35,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:35,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:05:35,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:35,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:05:35,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:05:35,542 INFO L87 Difference]: Start difference. First operand 589 states and 836 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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) [2025-03-04 06:05:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:35,975 INFO L93 Difference]: Finished difference Result 868 states and 1231 transitions. [2025-03-04 06:05:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 06:05:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 99 [2025-03-04 06:05:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:35,988 INFO L225 Difference]: With dead ends: 868 [2025-03-04 06:05:35,989 INFO L226 Difference]: Without dead ends: 864 [2025-03-04 06:05:35,989 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 [2025-03-04 06:05:35,990 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 453 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:35,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1266 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 06:05:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2025-03-04 06:05:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 591. [2025-03-04 06:05:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 585 states have (on average 1.4222222222222223) internal successors, (832), 586 states have internal predecessors, (832), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 838 transitions. [2025-03-04 06:05:36,039 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 838 transitions. Word has length 99 [2025-03-04 06:05:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:36,039 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 838 transitions. [2025-03-04 06:05:36,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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) [2025-03-04 06:05:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 838 transitions. [2025-03-04 06:05:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-03-04 06:05:36,055 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:36,056 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] [2025-03-04 06:05:36,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:05:36,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:36,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:36,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1265311397, now seen corresponding path program 1 times [2025-03-04 06:05:36,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:36,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384435911] [2025-03-04 06:05:36,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:36,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:36,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-04 06:05:36,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-04 06:05:36,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:36,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 06:05:36,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:36,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384435911] [2025-03-04 06:05:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384435911] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:36,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:36,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:05:36,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751679501] [2025-03-04 06:05:36,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:36,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:05:36,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:36,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:05:36,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:05:36,673 INFO L87 Difference]: Start difference. First operand 591 states and 838 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2025-03-04 06:05:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:36,868 INFO L93 Difference]: Finished difference Result 852 states and 1214 transitions. [2025-03-04 06:05:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 06:05:36,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 151 [2025-03-04 06:05:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:36,876 INFO L225 Difference]: With dead ends: 852 [2025-03-04 06:05:36,877 INFO L226 Difference]: Without dead ends: 507 [2025-03-04 06:05:36,878 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 [2025-03-04 06:05:36,878 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 30 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:36,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1034 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 06:05:36,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2025-03-04 06:05:36,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2025-03-04 06:05:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 501 states have (on average 1.3532934131736527) internal successors, (678), 502 states have internal predecessors, (678), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 684 transitions. [2025-03-04 06:05:36,915 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 684 transitions. Word has length 151 [2025-03-04 06:05:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:36,915 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 684 transitions. [2025-03-04 06:05:36,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2025-03-04 06:05:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 684 transitions. [2025-03-04 06:05:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-03-04 06:05:36,917 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:36,917 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] [2025-03-04 06:05:36,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:05:36,917 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:36,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash -970485665, now seen corresponding path program 1 times [2025-03-04 06:05:36,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:36,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541817310] [2025-03-04 06:05:36,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:36,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:37,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-04 06:05:37,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-04 06:05:37,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:37,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:37,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:37,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541817310] [2025-03-04 06:05:37,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541817310] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:37,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:37,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 06:05:37,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909667605] [2025-03-04 06:05:37,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:37,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 06:05:37,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:37,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 06:05:37,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 06:05:37,388 INFO L87 Difference]: Start difference. First operand 507 states and 684 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) [2025-03-04 06:05:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:38,241 INFO L93 Difference]: Finished difference Result 1069 states and 1442 transitions. [2025-03-04 06:05:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 06:05:38,243 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 151 [2025-03-04 06:05:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:38,245 INFO L225 Difference]: With dead ends: 1069 [2025-03-04 06:05:38,249 INFO L226 Difference]: Without dead ends: 651 [2025-03-04 06:05:38,251 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 [2025-03-04 06:05:38,252 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 795 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:38,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 711 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 06:05:38,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2025-03-04 06:05:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 644. [2025-03-04 06:05:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 638 states have (on average 1.3557993730407523) internal successors, (865), 639 states have internal predecessors, (865), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 06:05:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 871 transitions. [2025-03-04 06:05:38,293 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 871 transitions. Word has length 151 [2025-03-04 06:05:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:38,294 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 871 transitions. [2025-03-04 06:05:38,294 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) [2025-03-04 06:05:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 871 transitions. [2025-03-04 06:05:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-03-04 06:05:38,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:38,297 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] [2025-03-04 06:05:38,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 06:05:38,297 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:38,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash 231431857, now seen corresponding path program 1 times [2025-03-04 06:05:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913162345] [2025-03-04 06:05:38,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:38,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-03-04 06:05:38,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-03-04 06:05:38,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:38,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:39,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:39,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913162345] [2025-03-04 06:05:39,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913162345] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:05:39,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131943031] [2025-03-04 06:05:39,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:39,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:05:39,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:05:39,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 06:05:39,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 06:05:40,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-03-04 06:05:40,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-03-04 06:05:40,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:40,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:40,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 06:05:40,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:05:40,378 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 [2025-03-04 06:05:40,756 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 23 treesize of output 3 [2025-03-04 06:05:40,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-04 06:05:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:40,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:05:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:41,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131943031] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:05:41,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:05:41,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2025-03-04 06:05:41,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112052733] [2025-03-04 06:05:41,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:05:41,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 06:05:41,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:41,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 06:05:41,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2025-03-04 06:05:41,093 INFO L87 Difference]: Start difference. First operand 644 states and 871 transitions. Second operand has 11 states, 11 states have (on average 28.90909090909091) internal successors, (318), 11 states have internal predecessors, (318), 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) [2025-03-04 06:05:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:41,913 INFO L93 Difference]: Finished difference Result 2882 states and 3908 transitions. [2025-03-04 06:05:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 06:05:41,915 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 28.90909090909091) internal successors, (318), 11 states have internal predecessors, (318), 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 161 [2025-03-04 06:05:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:41,931 INFO L225 Difference]: With dead ends: 2882 [2025-03-04 06:05:41,934 INFO L226 Difference]: Without dead ends: 2481 [2025-03-04 06:05:41,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 315 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-04 06:05:41,936 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 2678 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:41,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 2910 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 06:05:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2025-03-04 06:05:42,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 984. [2025-03-04 06:05:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 974 states have (on average 1.3501026694045175) internal successors, (1315), 975 states have internal predecessors, (1315), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 06:05:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1327 transitions. [2025-03-04 06:05:42,074 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1327 transitions. Word has length 161 [2025-03-04 06:05:42,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:42,074 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1327 transitions. [2025-03-04 06:05:42,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 28.90909090909091) internal successors, (318), 11 states have internal predecessors, (318), 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) [2025-03-04 06:05:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1327 transitions. [2025-03-04 06:05:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2025-03-04 06:05:42,083 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:42,084 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, 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] [2025-03-04 06:05:42,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 06:05:42,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:05:42,285 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:42,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash -954147531, now seen corresponding path program 1 times [2025-03-04 06:05:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131760060] [2025-03-04 06:05:42,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:42,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 383 statements into 1 equivalence classes. [2025-03-04 06:05:42,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 383 of 383 statements. [2025-03-04 06:05:42,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:42,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:49,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131760060] [2025-03-04 06:05:49,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131760060] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:05:49,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450924255] [2025-03-04 06:05:49,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:49,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:05:49,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:05:49,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 06:05:49,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 06:05:49,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 383 statements into 1 equivalence classes. [2025-03-04 06:05:50,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 383 of 383 statements. [2025-03-04 06:05:50,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:50,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:50,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 06:05:50,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:05:50,207 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 [2025-03-04 06:05:50,499 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 23 treesize of output 3 [2025-03-04 06:05:50,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:05:50,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:05:51,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:05:51,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-04 06:05:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:51,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:05:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:05:51,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450924255] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:05:51,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:05:51,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2025-03-04 06:05:51,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781193051] [2025-03-04 06:05:51,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:05:51,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-04 06:05:51,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:51,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-04 06:05:51,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-04 06:05:51,902 INFO L87 Difference]: Start difference. First operand 984 states and 1327 transitions. Second operand has 20 states, 20 states have (on average 38.4) internal successors, (768), 20 states have internal predecessors, (768), 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) [2025-03-04 06:05:53,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:53,673 INFO L93 Difference]: Finished difference Result 6116 states and 8303 transitions. [2025-03-04 06:05:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-04 06:05:53,674 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 38.4) internal successors, (768), 20 states have internal predecessors, (768), 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 383 [2025-03-04 06:05:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:53,718 INFO L225 Difference]: With dead ends: 6116 [2025-03-04 06:05:53,718 INFO L226 Difference]: Without dead ends: 5715 [2025-03-04 06:05:53,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 758 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=427, Unknown=0, NotChecked=0, Total=650 [2025-03-04 06:05:53,728 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 4676 mSDsluCounter, 5497 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 5891 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:53,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4686 Valid, 5891 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-04 06:05:53,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5715 states. [2025-03-04 06:05:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5715 to 1830. [2025-03-04 06:05:53,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1814 states have (on average 1.346747519294377) internal successors, (2443), 1815 states have internal predecessors, (2443), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 06:05:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2467 transitions. [2025-03-04 06:05:53,933 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2467 transitions. Word has length 383 [2025-03-04 06:05:53,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:53,937 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2467 transitions. [2025-03-04 06:05:53,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 38.4) internal successors, (768), 20 states have internal predecessors, (768), 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) [2025-03-04 06:05:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2467 transitions. [2025-03-04 06:05:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2025-03-04 06:05:53,963 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:53,964 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, 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] [2025-03-04 06:05:53,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 06:05:54,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-04 06:05:54,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:54,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash 602488125, now seen corresponding path program 2 times [2025-03-04 06:05:54,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:54,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287738421] [2025-03-04 06:05:54,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:05:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:54,601 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 827 statements into 2 equivalence classes. [2025-03-04 06:05:54,649 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 72 of 827 statements. [2025-03-04 06:05:54,649 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:05:54,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:05:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-04 06:05:54,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:05:54,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287738421] [2025-03-04 06:05:54,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287738421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:05:54,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:05:54,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 06:05:54,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234556322] [2025-03-04 06:05:54,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:05:54,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:05:54,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:05:54,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:05:54,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:05:54,941 INFO L87 Difference]: Start difference. First operand 1830 states and 2467 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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) [2025-03-04 06:05:55,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:05:55,543 INFO L93 Difference]: Finished difference Result 2329 states and 3152 transitions. [2025-03-04 06:05:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:05:55,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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 827 [2025-03-04 06:05:55,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:05:55,564 INFO L225 Difference]: With dead ends: 2329 [2025-03-04 06:05:55,567 INFO L226 Difference]: Without dead ends: 1931 [2025-03-04 06:05:55,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:05:55,570 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 80 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 06:05:55,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1632 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 06:05:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2025-03-04 06:05:55,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1836. [2025-03-04 06:05:55,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1820 states have (on average 1.3456043956043957) internal successors, (2449), 1821 states have internal predecessors, (2449), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 06:05:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2473 transitions. [2025-03-04 06:05:55,695 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2473 transitions. Word has length 827 [2025-03-04 06:05:55,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:05:55,696 INFO L471 AbstractCegarLoop]: Abstraction has 1836 states and 2473 transitions. [2025-03-04 06:05:55,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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) [2025-03-04 06:05:55,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2473 transitions. [2025-03-04 06:05:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2025-03-04 06:05:55,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:05:55,727 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, 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] [2025-03-04 06:05:55,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:05:55,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:05:55,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:05:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1364900884, now seen corresponding path program 1 times [2025-03-04 06:05:55,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:05:55,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899388078] [2025-03-04 06:05:55,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:05:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:05:56,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 828 statements into 1 equivalence classes. [2025-03-04 06:05:56,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 828 of 828 statements. [2025-03-04 06:05:56,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:05:56,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:06:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-04 06:06:01,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:06:01,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899388078] [2025-03-04 06:06:01,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899388078] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:06:01,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:06:01,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 06:06:01,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449530551] [2025-03-04 06:06:01,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:06:01,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:06:01,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:06:01,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:06:01,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:06:01,444 INFO L87 Difference]: Start difference. First operand 1836 states and 2473 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) [2025-03-04 06:06:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:06:01,992 INFO L93 Difference]: Finished difference Result 2255 states and 3045 transitions. [2025-03-04 06:06:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:06:01,993 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 828 [2025-03-04 06:06:01,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:06:02,009 INFO L225 Difference]: With dead ends: 2255 [2025-03-04 06:06:02,009 INFO L226 Difference]: Without dead ends: 1851 [2025-03-04 06:06:02,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 06:06:02,015 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 14 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 06:06:02,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1517 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 06:06:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2025-03-04 06:06:02,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1848. [2025-03-04 06:06:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1832 states have (on average 1.3449781659388647) internal successors, (2464), 1833 states have internal predecessors, (2464), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 06:06:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2488 transitions. [2025-03-04 06:06:02,132 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2488 transitions. Word has length 828 [2025-03-04 06:06:02,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:06:02,133 INFO L471 AbstractCegarLoop]: Abstraction has 1848 states and 2488 transitions. [2025-03-04 06:06:02,133 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) [2025-03-04 06:06:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2488 transitions. [2025-03-04 06:06:02,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2025-03-04 06:06:02,148 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:06:02,149 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, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:06:02,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:06:02,149 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:06:02,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:06:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1254757291, now seen corresponding path program 1 times [2025-03-04 06:06:02,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:06:02,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614051534] [2025-03-04 06:06:02,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:06:02,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:06:02,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 829 statements into 1 equivalence classes. [2025-03-04 06:06:03,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 829 of 829 statements. [2025-03-04 06:06:03,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:06:03,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:06:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:06:17,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:06:17,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614051534] [2025-03-04 06:06:17,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614051534] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:06:17,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92714246] [2025-03-04 06:06:17,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:06:17,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:06:17,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:06:17,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 06:06:17,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 06:06:19,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 829 statements into 1 equivalence classes. [2025-03-04 06:06:19,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 829 of 829 statements. [2025-03-04 06:06:19,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:06:19,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:06:20,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 4149 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-04 06:06:20,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:06:20,076 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 [2025-03-04 06:06:20,321 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 23 treesize of output 3 [2025-03-04 06:06:20,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:20,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:20,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:20,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:21,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:21,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:21,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:21,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:21,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-04 06:06:21,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-04 06:06:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:06:21,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:06:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 06:06:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92714246] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:06:23,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:06:23,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 15, 14] total 38 [2025-03-04 06:06:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893455311] [2025-03-04 06:06:23,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:06:23,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-03-04 06:06:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:06:23,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-03-04 06:06:23,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=836, Unknown=0, NotChecked=0, Total=1406 [2025-03-04 06:06:23,473 INFO L87 Difference]: Start difference. First operand 1848 states and 2488 transitions. Second operand has 38 states, 38 states have (on average 43.94736842105263) internal successors, (1670), 38 states have internal predecessors, (1670), 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) [2025-03-04 06:06:26,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:06:26,898 INFO L93 Difference]: Finished difference Result 13004 states and 17583 transitions. [2025-03-04 06:06:26,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-04 06:06:26,900 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 43.94736842105263) internal successors, (1670), 38 states have internal predecessors, (1670), 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 829 [2025-03-04 06:06:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:06:26,999 INFO L225 Difference]: With dead ends: 13004 [2025-03-04 06:06:27,009 INFO L226 Difference]: Without dead ends: 12585 [2025-03-04 06:06:27,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1697 GetRequests, 1646 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=871, Invalid=1579, Unknown=0, NotChecked=0, Total=2450 [2025-03-04 06:06:27,026 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 16880 mSDsluCounter, 9916 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16902 SdHoareTripleChecker+Valid, 10310 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-04 06:06:27,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16902 Valid, 10310 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-04 06:06:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12585 states. [2025-03-04 06:06:27,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12585 to 3540. [2025-03-04 06:06:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3512 states have (on average 1.3439635535307517) internal successors, (4720), 3513 states have internal predecessors, (4720), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-04 06:06:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4768 transitions. [2025-03-04 06:06:27,497 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4768 transitions. Word has length 829 [2025-03-04 06:06:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:06:27,498 INFO L471 AbstractCegarLoop]: Abstraction has 3540 states and 4768 transitions. [2025-03-04 06:06:27,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 43.94736842105263) internal successors, (1670), 38 states have internal predecessors, (1670), 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) [2025-03-04 06:06:27,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4768 transitions. [2025-03-04 06:06:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1718 [2025-03-04 06:06:27,535 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:06:27,535 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, 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] [2025-03-04 06:06:27,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 06:06:27,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:06:27,740 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:06:27,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:06:27,741 INFO L85 PathProgramCache]: Analyzing trace with hash 717527995, now seen corresponding path program 2 times [2025-03-04 06:06:27,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:06:27,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523013060] [2025-03-04 06:06:27,741 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:06:27,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:06:28,453 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1717 statements into 2 equivalence classes. [2025-03-04 06:06:28,488 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 74 of 1717 statements. [2025-03-04 06:06:28,488 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:06:28,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:06:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-04 06:06:28,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:06:28,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523013060] [2025-03-04 06:06:28,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523013060] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:06:28,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:06:28,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:06:28,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668092735] [2025-03-04 06:06:28,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:06:28,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:06:28,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:06:28,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:06:28,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:06:28,863 INFO L87 Difference]: Start difference. First operand 3540 states and 4768 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 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) [2025-03-04 06:06:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:06:29,796 INFO L93 Difference]: Finished difference Result 4019 states and 5418 transitions. [2025-03-04 06:06:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:06:29,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 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 1717 [2025-03-04 06:06:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:06:29,816 INFO L225 Difference]: With dead ends: 4019 [2025-03-04 06:06:29,818 INFO L226 Difference]: Without dead ends: 3603 [2025-03-04 06:06:29,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 06:06:29,827 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 41 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 06:06:29,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2465 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 06:06:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2025-03-04 06:06:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 3567. [2025-03-04 06:06:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3567 states, 3539 states have (on average 1.3438824526702458) internal successors, (4756), 3540 states have internal predecessors, (4756), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-04 06:06:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4804 transitions. [2025-03-04 06:06:30,025 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4804 transitions. Word has length 1717 [2025-03-04 06:06:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:06:30,028 INFO L471 AbstractCegarLoop]: Abstraction has 3567 states and 4804 transitions. [2025-03-04 06:06:30,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 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) [2025-03-04 06:06:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4804 transitions. [2025-03-04 06:06:30,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1718 [2025-03-04 06:06:30,066 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:06:30,069 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, 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] [2025-03-04 06:06:30,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:06:30,069 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:06:30,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:06:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1014575700, now seen corresponding path program 1 times [2025-03-04 06:06:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:06:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369377964] [2025-03-04 06:06:30,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:06:30,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:06:31,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1717 statements into 1 equivalence classes. [2025-03-04 06:06:32,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1717 of 1717 statements. [2025-03-04 06:06:32,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:06:32,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:06:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-04 06:06:37,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:06:37,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369377964] [2025-03-04 06:06:37,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369377964] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:06:37,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:06:37,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:06:37,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470844786] [2025-03-04 06:06:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:06:37,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:06:37,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:06:37,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:06:37,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:06:37,351 INFO L87 Difference]: Start difference. First operand 3567 states and 4804 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 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) [2025-03-04 06:06:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:06:38,087 INFO L93 Difference]: Finished difference Result 4016 states and 5418 transitions. [2025-03-04 06:06:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:06:38,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 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 1717 [2025-03-04 06:06:38,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:06:38,105 INFO L225 Difference]: With dead ends: 4016 [2025-03-04 06:06:38,106 INFO L226 Difference]: Without dead ends: 3573 [2025-03-04 06:06:38,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-04 06:06:38,110 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 31 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 06:06:38,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2488 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 06:06:38,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2025-03-04 06:06:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3564. [2025-03-04 06:06:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3536 states have (on average 1.3424773755656108) internal successors, (4747), 3537 states have internal predecessors, (4747), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-04 06:06:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4795 transitions. [2025-03-04 06:06:38,254 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4795 transitions. Word has length 1717 [2025-03-04 06:06:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:06:38,255 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 4795 transitions. [2025-03-04 06:06:38,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 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) [2025-03-04 06:06:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4795 transitions. [2025-03-04 06:06:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2025-03-04 06:06:38,272 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:06:38,273 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, 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, 1] [2025-03-04 06:06:38,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 06:06:38,273 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:06:38,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:06:38,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1871490919, now seen corresponding path program 1 times [2025-03-04 06:06:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:06:38,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746645640] [2025-03-04 06:06:38,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:06:38,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:06:38,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1718 statements into 1 equivalence classes. [2025-03-04 06:06:39,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1718 of 1718 statements. [2025-03-04 06:06:39,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:06:39,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:06:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-04 06:06:42,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:06:42,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746645640] [2025-03-04 06:06:42,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746645640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:06:42,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:06:42,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 06:06:42,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655926081] [2025-03-04 06:06:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:06:42,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:06:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:06:42,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:06:42,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:06:42,449 INFO L87 Difference]: Start difference. First operand 3564 states and 4795 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2025-03-04 06:06:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 06:06:42,773 INFO L93 Difference]: Finished difference Result 4013 states and 5400 transitions. [2025-03-04 06:06:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:06:42,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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 1718 [2025-03-04 06:06:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 06:06:42,865 INFO L225 Difference]: With dead ends: 4013 [2025-03-04 06:06:42,869 INFO L226 Difference]: Without dead ends: 3573 [2025-03-04 06:06:42,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:06:42,873 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 8 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 06:06:42,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1536 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 06:06:42,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2025-03-04 06:06:43,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3573. [2025-03-04 06:06:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 3545 states have (on average 1.3416078984485191) internal successors, (4756), 3546 states have internal predecessors, (4756), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-04 06:06:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4804 transitions. [2025-03-04 06:06:43,044 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4804 transitions. Word has length 1718 [2025-03-04 06:06:43,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 06:06:43,045 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 4804 transitions. [2025-03-04 06:06:43,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2025-03-04 06:06:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4804 transitions. [2025-03-04 06:06:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2025-03-04 06:06:43,089 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 06:06:43,090 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, 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, 1] [2025-03-04 06:06:43,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 06:06:43,090 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 06:06:43,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:06:43,092 INFO L85 PathProgramCache]: Analyzing trace with hash 665031429, now seen corresponding path program 1 times [2025-03-04 06:06:43,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:06:43,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991887120] [2025-03-04 06:06:43,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:06:43,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:06:43,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1718 statements into 1 equivalence classes. [2025-03-04 06:06:44,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1718 of 1718 statements. [2025-03-04 06:06:44,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:06:44,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat