./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5577528c45849c92d31dcecadbfe6524610e7683d1e420d37b6f0ce59c6c59b8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 20:38:36,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 20:38:36,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 20:38:36,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 20:38:36,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 20:38:36,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 20:38:36,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 20:38:36,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 20:38:36,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 20:38:36,830 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 20:38:36,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 20:38:36,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 20:38:36,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 20:38:36,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 20:38:36,832 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 20:38:36,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 20:38:36,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 20:38:36,832 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 20:38:36,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 20:38:36,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 20:38:36,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 20:38:36,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 20:38:36,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 20:38:36,835 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5577528c45849c92d31dcecadbfe6524610e7683d1e420d37b6f0ce59c6c59b8 [2025-01-09 20:38:37,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 20:38:37,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 20:38:37,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 20:38:37,069 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 20:38:37,069 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 20:38:37,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i [2025-01-09 20:38:38,296 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed933d21a/4f24f08fce60407db8db95ee90d409bf/FLAG899d7b932 [2025-01-09 20:38:38,666 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 20:38:38,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i [2025-01-09 20:38:38,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed933d21a/4f24f08fce60407db8db95ee90d409bf/FLAG899d7b932 [2025-01-09 20:38:38,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed933d21a/4f24f08fce60407db8db95ee90d409bf [2025-01-09 20:38:38,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 20:38:38,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 20:38:38,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 20:38:38,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 20:38:38,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 20:38:38,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 08:38:38" (1/1) ... [2025-01-09 20:38:38,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169ff71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:38, skipping insertion in model container [2025-01-09 20:38:38,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 08:38:38" (1/1) ... [2025-01-09 20:38:38,751 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 20:38:39,016 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i[33022,33035] [2025-01-09 20:38:39,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 20:38:39,178 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 20:38:39,202 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i[33022,33035] [2025-01-09 20:38:39,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 20:38:39,304 INFO L204 MainTranslator]: Completed translation [2025-01-09 20:38:39,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39 WrapperNode [2025-01-09 20:38:39,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 20:38:39,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 20:38:39,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 20:38:39,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 20:38:39,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,423 INFO L138 Inliner]: procedures = 177, calls = 605, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3609 [2025-01-09 20:38:39,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 20:38:39,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 20:38:39,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 20:38:39,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 20:38:39,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,625 INFO L175 MemorySlicer]: Split 574 memory accesses to 3 slices as follows [2, 466, 106]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 102 writes are split as follows [0, 98, 4]. [2025-01-09 20:38:39,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,663 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 20:38:39,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 20:38:39,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 20:38:39,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 20:38:39,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (1/1) ... [2025-01-09 20:38:39,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 20:38:39,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 20:38:39,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 20:38:39,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 20:38:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2025-01-09 20:38:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2025-01-09 20:38:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 20:38:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 20:38:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 20:38:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 20:38:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 20:38:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 20:38:39,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 20:38:39,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 20:38:39,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 20:38:39,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 20:38:39,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 20:38:39,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 20:38:39,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 20:38:39,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 20:38:39,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 20:38:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 20:38:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 20:38:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 20:38:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 20:38:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 20:38:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 20:38:40,021 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 20:38:40,023 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 20:38:42,328 INFO L? ?]: Removed 822 outVars from TransFormulas that were not future-live. [2025-01-09 20:38:42,329 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 20:38:42,354 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 20:38:42,354 INFO L312 CfgBuilder]: Removed 81 assume(true) statements. [2025-01-09 20:38:42,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:38:42 BoogieIcfgContainer [2025-01-09 20:38:42,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 20:38:42,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 20:38:42,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 20:38:42,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 20:38:42,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 08:38:38" (1/3) ... [2025-01-09 20:38:42,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1455f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 08:38:42, skipping insertion in model container [2025-01-09 20:38:42,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:38:39" (2/3) ... [2025-01-09 20:38:42,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1455f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 08:38:42, skipping insertion in model container [2025-01-09 20:38:42,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:38:42" (3/3) ... [2025-01-09 20:38:42,362 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-3.i [2025-01-09 20:38:42,372 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 20:38:42,373 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test10-3.i that has 6 procedures, 1093 locations, 1 initial locations, 93 loop locations, and 1 error locations. [2025-01-09 20:38:42,436 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 20:38:42,443 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;@18a8f5bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 20:38:42,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 20:38:42,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 1085 states, 1066 states have (on average 1.6210131332082551) internal successors, (1728), 1071 states have internal predecessors, (1728), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 20:38:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-09 20:38:42,452 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:42,452 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:42,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:42,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:42,455 INFO L85 PathProgramCache]: Analyzing trace with hash 372094715, now seen corresponding path program 1 times [2025-01-09 20:38:42,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:42,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56722544] [2025-01-09 20:38:42,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:42,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:42,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-09 20:38:42,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-09 20:38:42,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:42,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 20:38:42,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:42,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56722544] [2025-01-09 20:38:42,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56722544] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:42,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:42,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 20:38:42,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816401783] [2025-01-09 20:38:42,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:42,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 20:38:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:42,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 20:38:42,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 20:38:42,628 INFO L87 Difference]: Start difference. First operand has 1085 states, 1066 states have (on average 1.6210131332082551) internal successors, (1728), 1071 states have internal predecessors, (1728), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:42,694 INFO L93 Difference]: Finished difference Result 2168 states and 3518 transitions. [2025-01-09 20:38:42,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 20:38:42,700 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-09 20:38:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:42,717 INFO L225 Difference]: With dead ends: 2168 [2025-01-09 20:38:42,717 INFO L226 Difference]: Without dead ends: 1021 [2025-01-09 20:38:42,726 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 [2025-01-09 20:38:42,732 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:42,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 20:38:42,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2025-01-09 20:38:42,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2025-01-09 20:38:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1003 states have (on average 1.4745762711864407) internal successors, (1479), 1008 states have internal predecessors, (1479), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 20:38:42,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1506 transitions. [2025-01-09 20:38:42,845 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1506 transitions. Word has length 13 [2025-01-09 20:38:42,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:42,849 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1506 transitions. [2025-01-09 20:38:42,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:42,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1506 transitions. [2025-01-09 20:38:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-01-09 20:38:42,855 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:42,856 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:42,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 20:38:42,856 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:42,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:42,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1689236611, now seen corresponding path program 1 times [2025-01-09 20:38:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:42,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040203478] [2025-01-09 20:38:42,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:42,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:42,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-09 20:38:42,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-09 20:38:42,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:42,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 20:38:43,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040203478] [2025-01-09 20:38:43,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040203478] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:43,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:43,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 20:38:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792936766] [2025-01-09 20:38:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:43,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 20:38:43,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:43,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 20:38:43,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 20:38:43,293 INFO L87 Difference]: Start difference. First operand 1021 states and 1506 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:43,455 INFO L93 Difference]: Finished difference Result 2036 states and 3006 transitions. [2025-01-09 20:38:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 20:38:43,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-01-09 20:38:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:43,461 INFO L225 Difference]: With dead ends: 2036 [2025-01-09 20:38:43,461 INFO L226 Difference]: Without dead ends: 1406 [2025-01-09 20:38:43,463 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 [2025-01-09 20:38:43,463 INFO L435 NwaCegarLoop]: 1545 mSDtfsCounter, 547 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:43,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 4526 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 20:38:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2025-01-09 20:38:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1023. [2025-01-09 20:38:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 1005 states have (on average 1.4736318407960198) internal successors, (1481), 1010 states have internal predecessors, (1481), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 20:38:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1508 transitions. [2025-01-09 20:38:43,499 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1508 transitions. Word has length 67 [2025-01-09 20:38:43,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:43,499 INFO L471 AbstractCegarLoop]: Abstraction has 1023 states and 1508 transitions. [2025-01-09 20:38:43,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:43,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1508 transitions. [2025-01-09 20:38:43,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 20:38:43,503 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:43,503 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:43,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 20:38:43,504 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:43,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:43,504 INFO L85 PathProgramCache]: Analyzing trace with hash 315370343, now seen corresponding path program 1 times [2025-01-09 20:38:43,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:43,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540002773] [2025-01-09 20:38:43,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:43,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 20:38:43,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 20:38:43,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:43,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:43,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 20:38:43,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:43,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540002773] [2025-01-09 20:38:43,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540002773] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:43,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:43,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 20:38:43,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402443427] [2025-01-09 20:38:43,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:43,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 20:38:43,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:43,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 20:38:43,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 20:38:43,951 INFO L87 Difference]: Start difference. First operand 1023 states and 1508 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:44,089 INFO L93 Difference]: Finished difference Result 2425 states and 3570 transitions. [2025-01-09 20:38:44,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 20:38:44,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2025-01-09 20:38:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:44,095 INFO L225 Difference]: With dead ends: 2425 [2025-01-09 20:38:44,095 INFO L226 Difference]: Without dead ends: 1406 [2025-01-09 20:38:44,096 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 [2025-01-09 20:38:44,097 INFO L435 NwaCegarLoop]: 1510 mSDtfsCounter, 542 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:44,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 4457 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 20:38:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2025-01-09 20:38:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1027. [2025-01-09 20:38:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1009 states have (on average 1.4717542120911793) internal successors, (1485), 1014 states have internal predecessors, (1485), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 20:38:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1512 transitions. [2025-01-09 20:38:44,126 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1512 transitions. Word has length 144 [2025-01-09 20:38:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:44,126 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1512 transitions. [2025-01-09 20:38:44,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:44,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1512 transitions. [2025-01-09 20:38:44,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-01-09 20:38:44,130 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:44,131 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:44,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 20:38:44,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:44,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:44,131 INFO L85 PathProgramCache]: Analyzing trace with hash -56932182, now seen corresponding path program 1 times [2025-01-09 20:38:44,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:44,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605124735] [2025-01-09 20:38:44,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:44,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-01-09 20:38:44,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-01-09 20:38:44,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:44,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 20:38:44,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:44,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605124735] [2025-01-09 20:38:44,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605124735] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:44,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:44,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 20:38:44,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999154036] [2025-01-09 20:38:44,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:44,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 20:38:44,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:44,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 20:38:44,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 20:38:44,526 INFO L87 Difference]: Start difference. First operand 1027 states and 1512 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:44,613 INFO L93 Difference]: Finished difference Result 2004 states and 2950 transitions. [2025-01-09 20:38:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 20:38:44,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2025-01-09 20:38:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:44,618 INFO L225 Difference]: With dead ends: 2004 [2025-01-09 20:38:44,618 INFO L226 Difference]: Without dead ends: 985 [2025-01-09 20:38:44,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 20:38:44,621 INFO L435 NwaCegarLoop]: 1404 mSDtfsCounter, 27 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:44,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4194 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 20:38:44,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2025-01-09 20:38:44,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2025-01-09 20:38:44,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 967 states have (on average 1.4560496380558428) internal successors, (1408), 972 states have internal predecessors, (1408), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 20:38:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1435 transitions. [2025-01-09 20:38:44,645 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1435 transitions. Word has length 214 [2025-01-09 20:38:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:44,646 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1435 transitions. [2025-01-09 20:38:44,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1435 transitions. [2025-01-09 20:38:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-01-09 20:38:44,649 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:44,649 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:44,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 20:38:44,649 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:44,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash -882032420, now seen corresponding path program 1 times [2025-01-09 20:38:44,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:44,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054240321] [2025-01-09 20:38:44,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:44,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:44,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-01-09 20:38:44,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-01-09 20:38:44,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:44,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 20:38:44,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:44,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054240321] [2025-01-09 20:38:44,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054240321] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:44,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:44,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 20:38:44,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422694641] [2025-01-09 20:38:44,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:44,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 20:38:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:44,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 20:38:44,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 20:38:44,917 INFO L87 Difference]: Start difference. First operand 985 states and 1435 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:44,964 INFO L93 Difference]: Finished difference Result 1962 states and 2862 transitions. [2025-01-09 20:38:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 20:38:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2025-01-09 20:38:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:44,969 INFO L225 Difference]: With dead ends: 1962 [2025-01-09 20:38:44,969 INFO L226 Difference]: Without dead ends: 985 [2025-01-09 20:38:44,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 20:38:44,971 INFO L435 NwaCegarLoop]: 1417 mSDtfsCounter, 1 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:44,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2812 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 20:38:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2025-01-09 20:38:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2025-01-09 20:38:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 967 states have (on average 1.452947259565667) internal successors, (1405), 972 states have internal predecessors, (1405), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 20:38:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1432 transitions. [2025-01-09 20:38:44,995 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1432 transitions. Word has length 214 [2025-01-09 20:38:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:44,995 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1432 transitions. [2025-01-09 20:38:44,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1432 transitions. [2025-01-09 20:38:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-01-09 20:38:44,998 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:44,998 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:44,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 20:38:44,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:44,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1057661472, now seen corresponding path program 1 times [2025-01-09 20:38:44,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:44,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782492584] [2025-01-09 20:38:44,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:45,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-01-09 20:38:45,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-01-09 20:38:45,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:45,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 20:38:45,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:45,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782492584] [2025-01-09 20:38:45,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782492584] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:45,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:45,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 20:38:45,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307061901] [2025-01-09 20:38:45,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:45,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 20:38:45,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:45,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 20:38:45,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 20:38:45,199 INFO L87 Difference]: Start difference. First operand 985 states and 1432 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:45,280 INFO L93 Difference]: Finished difference Result 2489 states and 3632 transitions. [2025-01-09 20:38:45,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 20:38:45,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2025-01-09 20:38:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:45,286 INFO L225 Difference]: With dead ends: 2489 [2025-01-09 20:38:45,286 INFO L226 Difference]: Without dead ends: 1512 [2025-01-09 20:38:45,288 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 [2025-01-09 20:38:45,288 INFO L435 NwaCegarLoop]: 1421 mSDtfsCounter, 713 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:45,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 2824 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 20:38:45,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2025-01-09 20:38:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1354. [2025-01-09 20:38:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1334 states have (on average 1.4550224887556222) internal successors, (1941), 1339 states have internal predecessors, (1941), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 20:38:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1972 transitions. [2025-01-09 20:38:45,316 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1972 transitions. Word has length 214 [2025-01-09 20:38:45,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:45,316 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1972 transitions. [2025-01-09 20:38:45,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 20:38:45,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1972 transitions. [2025-01-09 20:38:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-01-09 20:38:45,318 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:45,318 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:45,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 20:38:45,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:45,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1764860078, now seen corresponding path program 1 times [2025-01-09 20:38:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:45,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446149596] [2025-01-09 20:38:45,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:45,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:45,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-01-09 20:38:45,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-01-09 20:38:45,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:45,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 20:38:45,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:45,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446149596] [2025-01-09 20:38:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446149596] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:45,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:45,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 20:38:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759145121] [2025-01-09 20:38:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:45,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 20:38:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:45,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 20:38:45,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 20:38:45,674 INFO L87 Difference]: Start difference. First operand 1354 states and 1972 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 20:38:45,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:45,750 INFO L93 Difference]: Finished difference Result 2636 states and 3854 transitions. [2025-01-09 20:38:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 20:38:45,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 229 [2025-01-09 20:38:45,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:45,756 INFO L225 Difference]: With dead ends: 2636 [2025-01-09 20:38:45,756 INFO L226 Difference]: Without dead ends: 1374 [2025-01-09 20:38:45,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 20:38:45,758 INFO L435 NwaCegarLoop]: 1403 mSDtfsCounter, 9 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:45,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2791 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 20:38:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2025-01-09 20:38:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1374. [2025-01-09 20:38:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1354 states have (on average 1.448301329394387) internal successors, (1961), 1359 states have internal predecessors, (1961), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 20:38:45,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1992 transitions. [2025-01-09 20:38:45,784 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1992 transitions. Word has length 229 [2025-01-09 20:38:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:45,785 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1992 transitions. [2025-01-09 20:38:45,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 20:38:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1992 transitions. [2025-01-09 20:38:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-01-09 20:38:45,787 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:45,787 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:45,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 20:38:45,787 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:45,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash 618343602, now seen corresponding path program 1 times [2025-01-09 20:38:45,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:45,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915276122] [2025-01-09 20:38:45,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:45,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:45,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-01-09 20:38:45,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-01-09 20:38:45,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:45,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 20:38:46,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:46,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915276122] [2025-01-09 20:38:46,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915276122] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:46,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:46,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 20:38:46,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637170418] [2025-01-09 20:38:46,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:46,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 20:38:46,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:46,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 20:38:46,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 20:38:46,077 INFO L87 Difference]: Start difference. First operand 1374 states and 1992 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 20:38:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:46,151 INFO L93 Difference]: Finished difference Result 2594 states and 3775 transitions. [2025-01-09 20:38:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 20:38:46,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 229 [2025-01-09 20:38:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:46,156 INFO L225 Difference]: With dead ends: 2594 [2025-01-09 20:38:46,156 INFO L226 Difference]: Without dead ends: 1312 [2025-01-09 20:38:46,158 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 [2025-01-09 20:38:46,159 INFO L435 NwaCegarLoop]: 1319 mSDtfsCounter, 32 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3943 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:46,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3943 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 20:38:46,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2025-01-09 20:38:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1312. [2025-01-09 20:38:46,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1292 states have (on average 1.4404024767801857) internal successors, (1861), 1297 states have internal predecessors, (1861), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 20:38:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1892 transitions. [2025-01-09 20:38:46,187 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1892 transitions. Word has length 229 [2025-01-09 20:38:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:46,187 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1892 transitions. [2025-01-09 20:38:46,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 20:38:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1892 transitions. [2025-01-09 20:38:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-01-09 20:38:46,189 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:46,190 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:46,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 20:38:46,190 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:46,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1628113052, now seen corresponding path program 1 times [2025-01-09 20:38:46,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:46,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396868180] [2025-01-09 20:38:46,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:46,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:46,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-01-09 20:38:46,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-01-09 20:38:46,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:46,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 20:38:46,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:46,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396868180] [2025-01-09 20:38:46,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396868180] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:46,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:46,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 20:38:46,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634918466] [2025-01-09 20:38:46,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:46,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 20:38:46,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:46,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 20:38:46,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 20:38:46,436 INFO L87 Difference]: Start difference. First operand 1312 states and 1892 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 20:38:46,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:46,523 INFO L93 Difference]: Finished difference Result 3099 states and 4491 transitions. [2025-01-09 20:38:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 20:38:46,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 229 [2025-01-09 20:38:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:46,531 INFO L225 Difference]: With dead ends: 3099 [2025-01-09 20:38:46,531 INFO L226 Difference]: Without dead ends: 1879 [2025-01-09 20:38:46,533 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 [2025-01-09 20:38:46,534 INFO L435 NwaCegarLoop]: 1338 mSDtfsCounter, 595 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:46,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 2658 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 20:38:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2025-01-09 20:38:46,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1874. [2025-01-09 20:38:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1848 states have (on average 1.4442640692640694) internal successors, (2669), 1853 states have internal predecessors, (2669), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2025-01-09 20:38:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2712 transitions. [2025-01-09 20:38:46,583 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2712 transitions. Word has length 229 [2025-01-09 20:38:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:46,584 INFO L471 AbstractCegarLoop]: Abstraction has 1874 states and 2712 transitions. [2025-01-09 20:38:46,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 20:38:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2712 transitions. [2025-01-09 20:38:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2025-01-09 20:38:46,587 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:46,587 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:46,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 20:38:46,587 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1497908469, now seen corresponding path program 1 times [2025-01-09 20:38:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116034202] [2025-01-09 20:38:46,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:46,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 244 statements into 1 equivalence classes. [2025-01-09 20:38:46,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 244 of 244 statements. [2025-01-09 20:38:46,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:46,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:38:46,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:46,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116034202] [2025-01-09 20:38:46,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116034202] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:46,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:46,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 20:38:46,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899422139] [2025-01-09 20:38:46,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:46,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 20:38:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:46,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 20:38:46,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 20:38:46,914 INFO L87 Difference]: Start difference. First operand 1874 states and 2712 transitions. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 20:38:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:47,726 INFO L93 Difference]: Finished difference Result 4047 states and 5902 transitions. [2025-01-09 20:38:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 20:38:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 244 [2025-01-09 20:38:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:47,735 INFO L225 Difference]: With dead ends: 4047 [2025-01-09 20:38:47,735 INFO L226 Difference]: Without dead ends: 2410 [2025-01-09 20:38:47,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-09 20:38:47,738 INFO L435 NwaCegarLoop]: 1409 mSDtfsCounter, 3526 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:47,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 2969 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 20:38:47,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2025-01-09 20:38:47,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 1448. [2025-01-09 20:38:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1427 states have (on average 1.4274702172389628) internal successors, (2037), 1432 states have internal predecessors, (2037), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 20:38:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2070 transitions. [2025-01-09 20:38:47,778 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2070 transitions. Word has length 244 [2025-01-09 20:38:47,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:47,779 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2070 transitions. [2025-01-09 20:38:47,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 20:38:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2070 transitions. [2025-01-09 20:38:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2025-01-09 20:38:47,781 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:47,781 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:47,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 20:38:47,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:47,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1918039802, now seen corresponding path program 1 times [2025-01-09 20:38:47,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:47,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490421566] [2025-01-09 20:38:47,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:47,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:47,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-01-09 20:38:47,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-01-09 20:38:47,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:47,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 20:38:48,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:48,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490421566] [2025-01-09 20:38:48,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490421566] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:48,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 20:38:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434405519] [2025-01-09 20:38:48,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:48,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 20:38:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:48,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 20:38:48,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 20:38:48,160 INFO L87 Difference]: Start difference. First operand 1448 states and 2070 transitions. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 20:38:48,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:48,294 INFO L93 Difference]: Finished difference Result 2349 states and 3402 transitions. [2025-01-09 20:38:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 20:38:48,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 254 [2025-01-09 20:38:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:48,301 INFO L225 Difference]: With dead ends: 2349 [2025-01-09 20:38:48,301 INFO L226 Difference]: Without dead ends: 1488 [2025-01-09 20:38:48,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 20:38:48,303 INFO L435 NwaCegarLoop]: 1313 mSDtfsCounter, 129 mSDsluCounter, 3824 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 5137 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:48,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 5137 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 20:38:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2025-01-09 20:38:48,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1450. [2025-01-09 20:38:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1429 states have (on average 1.4275717284814555) internal successors, (2040), 1434 states have internal predecessors, (2040), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 20:38:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2073 transitions. [2025-01-09 20:38:48,337 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2073 transitions. Word has length 254 [2025-01-09 20:38:48,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:48,338 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2073 transitions. [2025-01-09 20:38:48,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 20:38:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2073 transitions. [2025-01-09 20:38:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2025-01-09 20:38:48,340 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:48,340 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:48,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 20:38:48,340 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:48,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:48,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1422987336, now seen corresponding path program 1 times [2025-01-09 20:38:48,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:48,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663635949] [2025-01-09 20:38:48,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:48,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:48,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-01-09 20:38:48,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-01-09 20:38:48,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:48,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 20:38:48,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:48,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663635949] [2025-01-09 20:38:48,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663635949] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:38:48,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:38:48,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 20:38:48,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282028283] [2025-01-09 20:38:48,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:38:48,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 20:38:48,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:48,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 20:38:48,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 20:38:48,686 INFO L87 Difference]: Start difference. First operand 1450 states and 2073 transitions. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 20:38:48,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:48,771 INFO L93 Difference]: Finished difference Result 2317 states and 3363 transitions. [2025-01-09 20:38:48,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 20:38:48,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 254 [2025-01-09 20:38:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:48,776 INFO L225 Difference]: With dead ends: 2317 [2025-01-09 20:38:48,777 INFO L226 Difference]: Without dead ends: 1406 [2025-01-09 20:38:48,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 20:38:48,779 INFO L435 NwaCegarLoop]: 1237 mSDtfsCounter, 27 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:48,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3692 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 20:38:48,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2025-01-09 20:38:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1406. [2025-01-09 20:38:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1385 states have (on average 1.4151624548736461) internal successors, (1960), 1390 states have internal predecessors, (1960), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 20:38:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1993 transitions. [2025-01-09 20:38:48,811 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1993 transitions. Word has length 254 [2025-01-09 20:38:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:48,811 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 1993 transitions. [2025-01-09 20:38:48,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 20:38:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1993 transitions. [2025-01-09 20:38:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2025-01-09 20:38:48,814 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:48,814 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:48,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 20:38:48,814 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:48,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:48,815 INFO L85 PathProgramCache]: Analyzing trace with hash -894522386, now seen corresponding path program 1 times [2025-01-09 20:38:48,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:48,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546514911] [2025-01-09 20:38:48,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:48,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:48,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-01-09 20:38:48,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-01-09 20:38:48,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:48,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:38:49,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:49,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546514911] [2025-01-09 20:38:49,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546514911] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 20:38:49,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447961995] [2025-01-09 20:38:49,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:49,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:38:49,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 20:38:49,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 20:38:49,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 20:38:50,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-01-09 20:38:50,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-01-09 20:38:50,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:50,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:50,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 20:38:50,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 20:38:50,266 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 [2025-01-09 20:38:50,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:38:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:38:50,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 20:38:50,881 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:38:50,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447961995] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 20:38:50,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 20:38:50,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 12 [2025-01-09 20:38:50,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13853058] [2025-01-09 20:38:50,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 20:38:50,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 20:38:50,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:50,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 20:38:50,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-01-09 20:38:50,884 INFO L87 Difference]: Start difference. First operand 1406 states and 1993 transitions. Second operand has 12 states, 12 states have (on average 46.333333333333336) internal successors, (556), 12 states have internal predecessors, (556), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:38:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:51,330 INFO L93 Difference]: Finished difference Result 3221 states and 4533 transitions. [2025-01-09 20:38:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 20:38:51,331 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 46.333333333333336) internal successors, (556), 12 states have internal predecessors, (556), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 254 [2025-01-09 20:38:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:51,339 INFO L225 Difference]: With dead ends: 3221 [2025-01-09 20:38:51,339 INFO L226 Difference]: Without dead ends: 2348 [2025-01-09 20:38:51,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 496 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-01-09 20:38:51,342 INFO L435 NwaCegarLoop]: 1567 mSDtfsCounter, 4117 mSDsluCounter, 8517 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4132 SdHoareTripleChecker+Valid, 10084 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:51,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4132 Valid, 10084 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 20:38:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2025-01-09 20:38:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2058. [2025-01-09 20:38:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 2025 states have (on average 1.3837037037037037) internal successors, (2802), 2030 states have internal predecessors, (2802), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 20:38:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2857 transitions. [2025-01-09 20:38:51,405 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2857 transitions. Word has length 254 [2025-01-09 20:38:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:51,406 INFO L471 AbstractCegarLoop]: Abstraction has 2058 states and 2857 transitions. [2025-01-09 20:38:51,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 46.333333333333336) internal successors, (556), 12 states have internal predecessors, (556), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:38:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2857 transitions. [2025-01-09 20:38:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2025-01-09 20:38:51,416 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:51,416 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:51,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 20:38:51,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 20:38:51,617 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:51,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash 769779378, now seen corresponding path program 1 times [2025-01-09 20:38:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119781597] [2025-01-09 20:38:51,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:51,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 485 statements into 1 equivalence classes. [2025-01-09 20:38:51,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 485 of 485 statements. [2025-01-09 20:38:51,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:51,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 235 proven. 6 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2025-01-09 20:38:53,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:53,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119781597] [2025-01-09 20:38:53,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119781597] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 20:38:53,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489928467] [2025-01-09 20:38:53,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:53,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:38:53,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 20:38:53,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 20:38:53,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 20:38:53,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 485 statements into 1 equivalence classes. [2025-01-09 20:38:53,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 485 of 485 statements. [2025-01-09 20:38:53,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:53,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:54,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 2403 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 20:38:54,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 20:38:54,035 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 [2025-01-09 20:38:54,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:38:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 235 proven. 6 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2025-01-09 20:38:54,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 20:38:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 235 proven. 6 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2025-01-09 20:38:54,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489928467] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 20:38:54,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 20:38:54,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 13 [2025-01-09 20:38:54,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649380485] [2025-01-09 20:38:54,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 20:38:54,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 20:38:54,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:38:54,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 20:38:54,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-01-09 20:38:54,568 INFO L87 Difference]: Start difference. First operand 2058 states and 2857 transitions. Second operand has 13 states, 13 states have (on average 49.69230769230769) internal successors, (646), 13 states have internal predecessors, (646), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:38:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:38:54,948 INFO L93 Difference]: Finished difference Result 3959 states and 5510 transitions. [2025-01-09 20:38:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 20:38:54,949 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 49.69230769230769) internal successors, (646), 13 states have internal predecessors, (646), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 485 [2025-01-09 20:38:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:38:54,956 INFO L225 Difference]: With dead ends: 3959 [2025-01-09 20:38:54,957 INFO L226 Difference]: Without dead ends: 2348 [2025-01-09 20:38:54,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 982 GetRequests, 959 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2025-01-09 20:38:54,959 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 2638 mSDsluCounter, 9098 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 10691 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 20:38:54,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2652 Valid, 10691 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 20:38:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2025-01-09 20:38:54,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2062. [2025-01-09 20:38:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 2029 states have (on average 1.381961557417447) internal successors, (2804), 2034 states have internal predecessors, (2804), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 20:38:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2859 transitions. [2025-01-09 20:38:55,007 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2859 transitions. Word has length 485 [2025-01-09 20:38:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:38:55,008 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2859 transitions. [2025-01-09 20:38:55,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 49.69230769230769) internal successors, (646), 13 states have internal predecessors, (646), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:38:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2859 transitions. [2025-01-09 20:38:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2025-01-09 20:38:55,020 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:38:55,020 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:38:55,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 20:38:55,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:38:55,224 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:38:55,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:38:55,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1377902091, now seen corresponding path program 1 times [2025-01-09 20:38:55,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:38:55,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969628781] [2025-01-09 20:38:55,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:55,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:38:55,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 695 statements into 1 equivalence classes. [2025-01-09 20:38:55,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 695 of 695 statements. [2025-01-09 20:38:55,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:55,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:58,748 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 0 proven. 878 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:38:58,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:38:58,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969628781] [2025-01-09 20:38:58,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969628781] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 20:38:58,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412440772] [2025-01-09 20:38:58,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:38:58,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:38:58,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 20:38:58,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 20:38:58,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 20:38:59,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 695 statements into 1 equivalence classes. [2025-01-09 20:38:59,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 695 of 695 statements. [2025-01-09 20:38:59,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:38:59,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:38:59,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 3384 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 20:38:59,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 20:38:59,720 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 [2025-01-09 20:38:59,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:00,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:00,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:00,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 0 proven. 878 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:39:00,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 20:39:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 0 proven. 878 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:39:01,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412440772] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 20:39:01,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 20:39:01,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 24 [2025-01-09 20:39:01,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107045684] [2025-01-09 20:39:01,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 20:39:01,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-09 20:39:01,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:39:01,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-09 20:39:01,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2025-01-09 20:39:01,180 INFO L87 Difference]: Start difference. First operand 2062 states and 2859 transitions. Second operand has 24 states, 24 states have (on average 78.29166666666667) internal successors, (1879), 24 states have internal predecessors, (1879), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:39:02,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:39:02,362 INFO L93 Difference]: Finished difference Result 4973 states and 6861 transitions. [2025-01-09 20:39:02,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-09 20:39:02,363 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 78.29166666666667) internal successors, (1879), 24 states have internal predecessors, (1879), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 695 [2025-01-09 20:39:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:39:02,381 INFO L225 Difference]: With dead ends: 4973 [2025-01-09 20:39:02,381 INFO L226 Difference]: Without dead ends: 4100 [2025-01-09 20:39:02,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1375 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=738, Unknown=0, NotChecked=0, Total=1056 [2025-01-09 20:39:02,390 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 4921 mSDsluCounter, 22258 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 24956 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 20:39:02,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4960 Valid, 24956 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 20:39:02,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2025-01-09 20:39:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3810. [2025-01-09 20:39:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3810 states, 3753 states have (on average 1.3533173461231016) internal successors, (5079), 3758 states have internal predecessors, (5079), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2025-01-09 20:39:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 5182 transitions. [2025-01-09 20:39:02,471 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 5182 transitions. Word has length 695 [2025-01-09 20:39:02,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:39:02,472 INFO L471 AbstractCegarLoop]: Abstraction has 3810 states and 5182 transitions. [2025-01-09 20:39:02,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 78.29166666666667) internal successors, (1879), 24 states have internal predecessors, (1879), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:39:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 5182 transitions. [2025-01-09 20:39:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2025-01-09 20:39:02,499 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:39:02,500 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:39:02,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 20:39:02,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:39:02,704 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:39:02,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:39:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1224844597, now seen corresponding path program 1 times [2025-01-09 20:39:02,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:39:02,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440988149] [2025-01-09 20:39:02,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:39:02,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:39:02,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1157 statements into 1 equivalence classes. [2025-01-09 20:39:03,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1157 of 1157 statements. [2025-01-09 20:39:03,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:39:03,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:39:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3905 backedges. 1852 proven. 894 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2025-01-09 20:39:09,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:39:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440988149] [2025-01-09 20:39:09,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440988149] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 20:39:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109247536] [2025-01-09 20:39:09,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:39:09,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:39:09,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 20:39:09,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 20:39:09,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 20:39:10,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1157 statements into 1 equivalence classes. [2025-01-09 20:39:10,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1157 of 1157 statements. [2025-01-09 20:39:10,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:39:10,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:39:11,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 5664 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 20:39:11,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 20:39:11,040 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 [2025-01-09 20:39:11,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:11,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:11,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:11,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:11,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3905 backedges. 1852 proven. 894 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2025-01-09 20:39:11,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 20:39:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3905 backedges. 1852 proven. 894 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2025-01-09 20:39:12,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109247536] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 20:39:12,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 20:39:12,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 25 [2025-01-09 20:39:12,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834517668] [2025-01-09 20:39:12,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 20:39:12,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 20:39:12,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:39:12,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 20:39:12,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=414, Unknown=0, NotChecked=0, Total=600 [2025-01-09 20:39:12,459 INFO L87 Difference]: Start difference. First operand 3810 states and 5182 transitions. Second operand has 25 states, 25 states have (on average 78.76) internal successors, (1969), 25 states have internal predecessors, (1969), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:39:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:39:13,472 INFO L93 Difference]: Finished difference Result 6587 states and 8999 transitions. [2025-01-09 20:39:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-09 20:39:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 78.76) internal successors, (1969), 25 states have internal predecessors, (1969), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1157 [2025-01-09 20:39:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:39:13,491 INFO L225 Difference]: With dead ends: 6587 [2025-01-09 20:39:13,491 INFO L226 Difference]: Without dead ends: 4100 [2025-01-09 20:39:13,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2344 GetRequests, 2300 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2025-01-09 20:39:13,496 INFO L435 NwaCegarLoop]: 2721 mSDtfsCounter, 4915 mSDsluCounter, 25193 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 27914 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 20:39:13,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 27914 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 20:39:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2025-01-09 20:39:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3814. [2025-01-09 20:39:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3757 states have (on average 1.3516103273888742) internal successors, (5078), 3762 states have internal predecessors, (5078), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2025-01-09 20:39:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 5181 transitions. [2025-01-09 20:39:13,568 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 5181 transitions. Word has length 1157 [2025-01-09 20:39:13,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:39:13,569 INFO L471 AbstractCegarLoop]: Abstraction has 3814 states and 5181 transitions. [2025-01-09 20:39:13,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 78.76) internal successors, (1969), 25 states have internal predecessors, (1969), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:39:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 5181 transitions. [2025-01-09 20:39:13,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1578 [2025-01-09 20:39:13,583 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:39:13,584 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:39:13,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 20:39:13,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-09 20:39:13,784 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:39:13,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:39:13,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1790116715, now seen corresponding path program 2 times [2025-01-09 20:39:13,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:39:13,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510377562] [2025-01-09 20:39:13,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 20:39:13,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:39:14,137 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1577 statements into 2 equivalence classes. [2025-01-09 20:39:14,145 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 77 of 1577 statements. [2025-01-09 20:39:14,145 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 20:39:14,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:39:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6623 trivial. 0 not checked. [2025-01-09 20:39:14,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:39:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510377562] [2025-01-09 20:39:14,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510377562] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 20:39:14,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 20:39:14,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 20:39:14,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040950880] [2025-01-09 20:39:14,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 20:39:14,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 20:39:14,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:39:14,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 20:39:14,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 20:39:14,290 INFO L87 Difference]: Start difference. First operand 3814 states and 5181 transitions. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 20:39:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:39:14,616 INFO L93 Difference]: Finished difference Result 4649 states and 6423 transitions. [2025-01-09 20:39:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 20:39:14,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1577 [2025-01-09 20:39:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:39:14,625 INFO L225 Difference]: With dead ends: 4649 [2025-01-09 20:39:14,625 INFO L226 Difference]: Without dead ends: 3819 [2025-01-09 20:39:14,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 20:39:14,627 INFO L435 NwaCegarLoop]: 1241 mSDtfsCounter, 14 mSDsluCounter, 4664 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 20:39:14,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5905 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 20:39:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2025-01-09 20:39:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3818. [2025-01-09 20:39:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3761 states have (on average 1.3515022600372242) internal successors, (5083), 3766 states have internal predecessors, (5083), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2025-01-09 20:39:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 5186 transitions. [2025-01-09 20:39:14,689 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 5186 transitions. Word has length 1577 [2025-01-09 20:39:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:39:14,690 INFO L471 AbstractCegarLoop]: Abstraction has 3818 states and 5186 transitions. [2025-01-09 20:39:14,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 20:39:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 5186 transitions. [2025-01-09 20:39:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1579 [2025-01-09 20:39:14,704 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:39:14,704 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:39:14,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 20:39:14,705 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:39:14,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:39:14,706 INFO L85 PathProgramCache]: Analyzing trace with hash -92464205, now seen corresponding path program 1 times [2025-01-09 20:39:14,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:39:14,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520644899] [2025-01-09 20:39:14,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:39:14,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:39:15,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1578 statements into 1 equivalence classes. [2025-01-09 20:39:15,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1578 of 1578 statements. [2025-01-09 20:39:15,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:39:15,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:39:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6623 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 6479 trivial. 0 not checked. [2025-01-09 20:39:19,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 20:39:19,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520644899] [2025-01-09 20:39:19,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520644899] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 20:39:19,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747750839] [2025-01-09 20:39:19,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:39:19,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 20:39:19,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 20:39:19,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 20:39:19,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 20:39:20,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1578 statements into 1 equivalence classes. [2025-01-09 20:39:21,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1578 of 1578 statements. [2025-01-09 20:39:21,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:39:21,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 20:39:21,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 7627 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-09 20:39:21,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 20:39:21,376 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 [2025-01-09 20:39:21,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:21,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:21,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:22,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-01-09 20:39:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6623 backedges. 0 proven. 6599 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:39:23,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 20:39:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6623 backedges. 0 proven. 6599 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 20:39:24,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747750839] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 20:39:24,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 20:39:24,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 14] total 33 [2025-01-09 20:39:24,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829546410] [2025-01-09 20:39:24,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 20:39:24,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-01-09 20:39:24,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 20:39:24,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-01-09 20:39:24,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2025-01-09 20:39:24,738 INFO L87 Difference]: Start difference. First operand 3818 states and 5186 transitions. Second operand has 33 states, 33 states have (on average 98.81818181818181) internal successors, (3261), 33 states have internal predecessors, (3261), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:39:28,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 20:39:28,426 INFO L93 Difference]: Finished difference Result 8536 states and 11581 transitions. [2025-01-09 20:39:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2025-01-09 20:39:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 98.81818181818181) internal successors, (3261), 33 states have internal predecessors, (3261), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1578 [2025-01-09 20:39:28,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 20:39:28,441 INFO L225 Difference]: With dead ends: 8536 [2025-01-09 20:39:28,442 INFO L226 Difference]: Without dead ends: 7659 [2025-01-09 20:39:28,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3234 GetRequests, 3147 SyntacticMatches, 7 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1209, Invalid=5433, Unknown=0, NotChecked=0, Total=6642 [2025-01-09 20:39:28,445 INFO L435 NwaCegarLoop]: 4972 mSDtfsCounter, 11188 mSDsluCounter, 91575 mSDsCounter, 0 mSdLazyCounter, 4485 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11275 SdHoareTripleChecker+Valid, 96547 SdHoareTripleChecker+Invalid, 4534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 4485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-01-09 20:39:28,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11275 Valid, 96547 Invalid, 4534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 4485 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-01-09 20:39:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2025-01-09 20:39:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 7322. [2025-01-09 20:39:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7322 states, 7217 states have (on average 1.3361507551614245) internal successors, (9643), 7222 states have internal predecessors, (9643), 100 states have call successors, (100), 4 states have call predecessors, (100), 4 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2025-01-09 20:39:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7322 states to 7322 states and 9842 transitions. [2025-01-09 20:39:28,567 INFO L78 Accepts]: Start accepts. Automaton has 7322 states and 9842 transitions. Word has length 1578 [2025-01-09 20:39:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 20:39:28,568 INFO L471 AbstractCegarLoop]: Abstraction has 7322 states and 9842 transitions. [2025-01-09 20:39:28,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 98.81818181818181) internal successors, (3261), 33 states have internal predecessors, (3261), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 20:39:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7322 states and 9842 transitions. [2025-01-09 20:39:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2503 [2025-01-09 20:39:28,672 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 20:39:28,674 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 20:39:28,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 20:39:28,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-09 20:39:28,878 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 20:39:28,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 20:39:28,880 INFO L85 PathProgramCache]: Analyzing trace with hash 8469447, now seen corresponding path program 1 times [2025-01-09 20:39:28,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 20:39:28,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113005548] [2025-01-09 20:39:28,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 20:39:28,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 20:39:29,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2502 statements into 1 equivalence classes. [2025-01-09 20:39:30,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2502 of 2502 statements. [2025-01-09 20:39:30,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 20:39:30,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat