./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 021ac35396c67703f42c73aa20a3d08d3b8ea81bc00c2712290e90099f1c0b85 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 03:00:05,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:00:05,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:00:05,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:00:05,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:00:05,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:00:05,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:00:05,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:00:05,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:00:05,689 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:00:05,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:00:05,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:00:05,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:00:05,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:00:05,690 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:00:05,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:00:05,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:00:05,691 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 021ac35396c67703f42c73aa20a3d08d3b8ea81bc00c2712290e90099f1c0b85 [2025-03-04 03:00:05,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:00:05,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:00:05,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:00:05,942 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:00:05,942 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:00:05,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i [2025-03-04 03:00:07,163 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad5e3905/7802c58de97749778793ce71a51200aa/FLAGc974a4e54 [2025-03-04 03:00:07,699 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:00:07,699 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i [2025-03-04 03:00:07,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad5e3905/7802c58de97749778793ce71a51200aa/FLAGc974a4e54 [2025-03-04 03:00:07,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad5e3905/7802c58de97749778793ce71a51200aa [2025-03-04 03:00:07,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:00:07,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:00:07,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:00:07,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:00:07,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:00:07,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:00:07" (1/1) ... [2025-03-04 03:00:07,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489d7242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:07, skipping insertion in model container [2025-03-04 03:00:07,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:00:07" (1/1) ... [2025-03-04 03:00:07,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:00:07,961 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i[4503,4516] [2025-03-04 03:00:07,966 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i[4563,4576] [2025-03-04 03:00:08,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,346 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,358 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,358 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,653 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i[151109,151122] [2025-03-04 03:00:08,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:00:08,671 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:00:08,679 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i[4503,4516] [2025-03-04 03:00:08,680 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i[4563,4576] [2025-03-04 03:00:08,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,727 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:00:08,821 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i[151109,151122] [2025-03-04 03:00:08,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:00:08,979 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:00:08,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08 WrapperNode [2025-03-04 03:00:08,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:00:08,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:00:08,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:00:08,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:00:08,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,063 INFO L138 Inliner]: procedures = 668, calls = 1078, calls flagged for inlining = 52, calls inlined = 5, statements flattened = 210 [2025-03-04 03:00:09,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:00:09,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:00:09,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:00:09,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:00:09,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,092 INFO L175 MemorySlicer]: Split 68 memory accesses to 5 slices as follows [2, 7, 5, 7, 47]. 69 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 4, 5, 4, 0]. The 18 writes are split as follows [0, 0, 0, 0, 18]. [2025-03-04 03:00:09,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,111 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:00:09,126 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:00:09,126 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:00:09,126 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:00:09,127 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (1/1) ... [2025-03-04 03:00:09,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:00:09,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:00:09,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 03:00:09,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 03:00:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_init [2025-03-04 03:00:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_init [2025-03-04 03:00:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:00:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2025-03-04 03:00:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_linked_list_is_allocated [2025-03-04 03:00:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_linked_list_is_allocated [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2025-03-04 03:00:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:00:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:00:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2025-03-04 03:00:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:00:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 03:00:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:00:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:00:09,351 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:00:09,354 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:00:09,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 03:00:09,425 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4718: havoc #t~mem312.base, #t~mem312.offset;havoc #t~short313;havoc #t~mem314.base, #t~mem314.offset;havoc #t~mem315.base, #t~mem315.offset;havoc #t~short316; [2025-03-04 03:00:09,645 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4700: havoc #t~ret311#1; [2025-03-04 03:00:09,650 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4685: havoc #t~mem302.base, #t~mem302.offset; [2025-03-04 03:00:09,678 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2025-03-04 03:00:09,678 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:00:09,687 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:00:09,687 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:00:09,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:00:09 BoogieIcfgContainer [2025-03-04 03:00:09,687 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:00:09,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:00:09,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:00:09,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:00:09,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:00:07" (1/3) ... [2025-03-04 03:00:09,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67de2407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:00:09, skipping insertion in model container [2025-03-04 03:00:09,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:00:08" (2/3) ... [2025-03-04 03:00:09,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67de2407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:00:09, skipping insertion in model container [2025-03-04 03:00:09,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:00:09" (3/3) ... [2025-03-04 03:00:09,694 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_swap_contents_harness.i [2025-03-04 03:00:09,703 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:00:09,704 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_swap_contents_harness.i that has 9 procedures, 113 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-04 03:00:09,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:00:09,762 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;@23c17b3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:00:09,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:00:09,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 72 states have internal predecessors, (88), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-04 03:00:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 03:00:09,774 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:00:09,775 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 03:00:09,775 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:00:09,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:00:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash 574240824, now seen corresponding path program 1 times [2025-03-04 03:00:09,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:00:09,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990628005] [2025-03-04 03:00:09,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:00:09,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:00:09,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 03:00:09,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 03:00:09,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:00:09,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:10,164 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-04 03:00:10,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:00:10,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990628005] [2025-03-04 03:00:10,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990628005] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:00:10,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942583368] [2025-03-04 03:00:10,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:00:10,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:00:10,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:00:10,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:00:10,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 03:00:10,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 03:00:10,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 03:00:10,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:00:10,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:10,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 03:00:10,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:00:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-04 03:00:10,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:00:10,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942583368] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:00:10,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:00:10,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 03:00:10,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220838915] [2025-03-04 03:00:10,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:00:10,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 03:00:10,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:00:10,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 03:00:10,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:00:10,479 INFO L87 Difference]: Start difference. First operand has 113 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 72 states have internal predecessors, (88), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-04 03:00:10,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:00:10,505 INFO L93 Difference]: Finished difference Result 223 states and 333 transitions. [2025-03-04 03:00:10,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 03:00:10,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2025-03-04 03:00:10,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:00:10,510 INFO L225 Difference]: With dead ends: 223 [2025-03-04 03:00:10,510 INFO L226 Difference]: Without dead ends: 106 [2025-03-04 03:00:10,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:00:10,515 INFO L435 NwaCegarLoop]: 154 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, 154 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 [2025-03-04 03:00:10,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 03:00:10,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-03-04 03:00:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2025-03-04 03:00:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 67 states have internal predecessors, (80), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-04 03:00:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 146 transitions. [2025-03-04 03:00:10,541 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 146 transitions. Word has length 102 [2025-03-04 03:00:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:00:10,542 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 146 transitions. [2025-03-04 03:00:10,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-04 03:00:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 146 transitions. [2025-03-04 03:00:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 03:00:10,544 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:00:10,544 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 03:00:10,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 03:00:10,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 03:00:10,745 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:00:10,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:00:10,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1274253083, now seen corresponding path program 1 times [2025-03-04 03:00:10,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:00:10,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27932987] [2025-03-04 03:00:10,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:00:10,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:00:10,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 03:00:10,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 03:00:10,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:00:10,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-04 03:00:13,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:00:13,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27932987] [2025-03-04 03:00:13,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27932987] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:00:13,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037403302] [2025-03-04 03:00:13,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:00:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:00:13,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:00:14,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:00:14,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 03:00:14,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 03:00:14,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 03:00:14,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:00:14,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:14,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-03-04 03:00:14,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:00:14,387 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 22 treesize of output 7 [2025-03-04 03:00:14,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2025-03-04 03:00:14,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 20 treesize of output 25 [2025-03-04 03:00:14,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2025-03-04 03:00:14,701 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-04 03:00:14,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2025-03-04 03:00:14,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-03-04 03:00:14,736 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-04 03:00:14,737 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 1 case distinctions, treesize of input 16 treesize of output 15 [2025-03-04 03:00:15,691 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-03-04 03:00:15,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2025-03-04 03:00:15,699 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-03-04 03:00:15,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2025-03-04 03:00:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-04 03:00:15,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 03:00:15,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 03:00:15,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 25 [2025-03-04 03:00:15,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 03:00:15,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2025-03-04 03:00:15,980 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimArr_3 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#4.base| (select v_arrayElimArr_3 |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset|) v_arrayElimArr_3) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.base|) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.offset|) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.base|)) (forall ((v_arrayElimArr_4 (Array Int Int)) (|ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.base| Int)) (or (not (= (select v_arrayElimArr_4 |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset|) (+ |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.offset| 16))) (= (select (select (store |c_#memory_$Pointer$#4.offset| |ULTIMATE.start_aws_linked_list_swap_contents_harness_~#b~0#1.base| v_arrayElimArr_4) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.base|) |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.offset|) (+ |c_ULTIMATE.start_aws_linked_list_swap_contents_harness_~#a~0#1.offset| 16))))) is different from false [2025-03-04 03:00:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037403302] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:00:15,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 03:00:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 26 [2025-03-04 03:00:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961701235] [2025-03-04 03:00:15,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 03:00:15,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-04 03:00:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:00:15,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-04 03:00:15,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=721, Unknown=1, NotChecked=54, Total=870 [2025-03-04 03:00:15,984 INFO L87 Difference]: Start difference. First operand 106 states and 146 transitions. Second operand has 26 states, 22 states have (on average 3.590909090909091) internal successors, (79), 21 states have internal predecessors, (79), 14 states have call successors, (25), 4 states have call predecessors, (25), 7 states have return successors, (24), 14 states have call predecessors, (24), 14 states have call successors, (24) [2025-03-04 03:00:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:00:18,353 INFO L93 Difference]: Finished difference Result 250 states and 347 transitions. [2025-03-04 03:00:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 03:00:18,354 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 3.590909090909091) internal successors, (79), 21 states have internal predecessors, (79), 14 states have call successors, (25), 4 states have call predecessors, (25), 7 states have return successors, (24), 14 states have call predecessors, (24), 14 states have call successors, (24) Word has length 102 [2025-03-04 03:00:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:00:18,357 INFO L225 Difference]: With dead ends: 250 [2025-03-04 03:00:18,357 INFO L226 Difference]: Without dead ends: 182 [2025-03-04 03:00:18,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 155 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=1234, Unknown=1, NotChecked=72, Total=1482 [2025-03-04 03:00:18,359 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 166 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 102 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-04 03:00:18,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 799 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1825 Invalid, 7 Unknown, 0 Unchecked, 2.0s Time] [2025-03-04 03:00:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-03-04 03:00:18,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2025-03-04 03:00:18,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 108 states have (on average 1.287037037037037) internal successors, (139), 113 states have internal predecessors, (139), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (53), 49 states have call predecessors, (53), 50 states have call successors, (53) [2025-03-04 03:00:18,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 244 transitions. [2025-03-04 03:00:18,385 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 244 transitions. Word has length 102 [2025-03-04 03:00:18,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:00:18,385 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 244 transitions. [2025-03-04 03:00:18,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 3.590909090909091) internal successors, (79), 21 states have internal predecessors, (79), 14 states have call successors, (25), 4 states have call predecessors, (25), 7 states have return successors, (24), 14 states have call predecessors, (24), 14 states have call successors, (24) [2025-03-04 03:00:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 244 transitions. [2025-03-04 03:00:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-04 03:00:18,389 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:00:18,389 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 03:00:18,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 03:00:18,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 03:00:18,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:00:18,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:00:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash -8021190, now seen corresponding path program 1 times [2025-03-04 03:00:18,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:00:18,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011914895] [2025-03-04 03:00:18,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:00:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:00:18,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-04 03:00:18,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-04 03:00:18,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:00:18,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-04 03:00:19,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:00:19,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011914895] [2025-03-04 03:00:19,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011914895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:00:19,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 03:00:19,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-04 03:00:19,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490309522] [2025-03-04 03:00:19,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:00:19,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 03:00:19,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:00:19,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 03:00:19,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-03-04 03:00:19,988 INFO L87 Difference]: Start difference. First operand 175 states and 244 transitions. Second operand has 11 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-04 03:00:20,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:00:20,457 INFO L93 Difference]: Finished difference Result 257 states and 356 transitions. [2025-03-04 03:00:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 03:00:20,458 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 103 [2025-03-04 03:00:20,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:00:20,461 INFO L225 Difference]: With dead ends: 257 [2025-03-04 03:00:20,461 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 03:00:20,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2025-03-04 03:00:20,462 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 31 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 03:00:20,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1064 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 03:00:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 03:00:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 03:00:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 108 states have (on average 1.2685185185185186) internal successors, (137), 112 states have internal predecessors, (137), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (53), 49 states have call predecessors, (53), 50 states have call successors, (53) [2025-03-04 03:00:20,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 242 transitions. [2025-03-04 03:00:20,483 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 242 transitions. Word has length 103 [2025-03-04 03:00:20,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:00:20,483 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 242 transitions. [2025-03-04 03:00:20,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-04 03:00:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 242 transitions. [2025-03-04 03:00:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-04 03:00:20,485 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:00:20,485 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 03:00:20,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 03:00:20,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:00:20,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:00:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1525235247, now seen corresponding path program 2 times [2025-03-04 03:00:20,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:00:20,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554542637] [2025-03-04 03:00:20,485 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 03:00:20,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:00:20,528 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 104 statements into 2 equivalence classes. [2025-03-04 03:00:21,040 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-03-04 03:00:21,041 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 03:00:21,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-04 03:00:21,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:00:21,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554542637] [2025-03-04 03:00:21,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554542637] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:00:21,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777870134] [2025-03-04 03:00:21,400 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 03:00:21,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:00:21,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:00:21,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 03:00:21,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 03:00:21,546 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 104 statements into 2 equivalence classes. [2025-03-04 03:00:21,875 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-03-04 03:00:21,876 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 03:00:21,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:00:21,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 115 conjuncts are in the unsatisfiable core [2025-03-04 03:00:21,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:00:21,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2025-03-04 03:00:21,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2025-03-04 03:00:21,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2025-03-04 03:00:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2025-03-04 03:00:22,046 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-04 03:00:22,047 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 1 case distinctions, treesize of input 25 treesize of output 22 [2025-03-04 03:00:22,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-03-04 03:00:22,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2025-03-04 03:00:22,091 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-04 03:00:22,092 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 1 case distinctions, treesize of input 27 treesize of output 24 [2025-03-04 03:00:22,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-04 03:00:22,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 17 treesize of output 20 [2025-03-04 03:00:22,156 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 8 treesize of output 1 [2025-03-04 03:00:22,161 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 19 treesize of output 1 [2025-03-04 03:00:22,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2025-03-04 03:00:22,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:22,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 28 [2025-03-04 03:00:22,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2025-03-04 03:00:22,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2025-03-04 03:00:22,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-04 03:00:22,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 14 treesize of output 17 [2025-03-04 03:00:22,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-03-04 03:00:22,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 17 treesize of output 20 [2025-03-04 03:00:22,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2025-03-04 03:00:27,269 INFO L349 Elim1Store]: treesize reduction 1725, result has 13.8 percent of original size [2025-03-04 03:00:27,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 17 new quantified variables, introduced 55 case distinctions, treesize of input 1631 treesize of output 3247 [2025-03-04 03:00:28,576 INFO L349 Elim1Store]: treesize reduction 136, result has 19.5 percent of original size [2025-03-04 03:00:28,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 2236 treesize of output 2037 [2025-03-04 03:00:31,099 INFO L349 Elim1Store]: treesize reduction 152, result has 18.7 percent of original size [2025-03-04 03:00:31,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 2471 treesize of output 2301 [2025-03-04 03:00:31,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:32,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:32,564 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:32,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:34,889 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:35,919 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:40,629 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:41,897 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:43,334 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:43,606 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:43,830 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:43,998 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:44,107 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:46,749 INFO L224 Elim1Store]: Index analysis took 14922 ms [2025-03-04 03:00:48,775 INFO L349 Elim1Store]: treesize reduction 1006, result has 1.7 percent of original size [2025-03-04 03:00:48,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 18 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 44 case distinctions, treesize of input 2001 treesize of output 5662 [2025-03-04 03:00:51,297 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:00:51,437 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:51,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 1028 treesize of output 680 [2025-03-04 03:00:52,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:52,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:52,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 115 [2025-03-04 03:00:59,565 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:59,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,601 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:59,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 366 treesize of output 342 [2025-03-04 03:00:59,623 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,646 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:00:59,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 242 [2025-03-04 03:00:59,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,704 INFO L349 Elim1Store]: treesize reduction 108, result has 4.4 percent of original size [2025-03-04 03:00:59,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 506 treesize of output 388 [2025-03-04 03:00:59,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 73 [2025-03-04 03:00:59,857 INFO L349 Elim1Store]: treesize reduction 69, result has 16.9 percent of original size [2025-03-04 03:00:59,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 742 treesize of output 688 [2025-03-04 03:00:59,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 11 [2025-03-04 03:00:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:00:59,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:00,113 INFO L349 Elim1Store]: treesize reduction 372, result has 7.7 percent of original size [2025-03-04 03:01:00,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 109 treesize of output 158 [2025-03-04 03:01:00,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 11 [2025-03-04 03:01:00,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:00,284 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:00,291 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:00,302 INFO L349 Elim1Store]: treesize reduction 69, result has 1.4 percent of original size [2025-03-04 03:01:00,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 27 [2025-03-04 03:01:00,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 03:01:00,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 253 treesize of output 263 [2025-03-04 03:01:03,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:03,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:03,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2025-03-04 03:01:04,262 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:01:04,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:04,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:04,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2025-03-04 03:01:05,341 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:01:05,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:05,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:05,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2025-03-04 03:01:06,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,690 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,711 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,755 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,774 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,775 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,791 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,797 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:06,805 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,876 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,921 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:06,978 INFO L224 Elim1Store]: Index analysis took 234 ms [2025-03-04 03:01:07,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 33 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 1976 treesize of output 11297 [2025-03-04 03:01:07,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 1128 treesize of output 950 [2025-03-04 03:01:11,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-03-04 03:01:11,102 INFO L349 Elim1Store]: treesize reduction 35, result has 18.6 percent of original size [2025-03-04 03:01:11,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 27 [2025-03-04 03:01:11,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 30 treesize of output 7 [2025-03-04 03:01:14,853 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:01:15,780 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:01:16,640 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:01:17,450 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 03:01:18,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:18,604 INFO L224 Elim1Store]: Index analysis took 140 ms [2025-03-04 03:01:18,728 INFO L349 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2025-03-04 03:01:18,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 110 [2025-03-04 03:01:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:26,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:26,440 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:29,000 INFO L349 Elim1Store]: treesize reduction 869, result has 10.3 percent of original size [2025-03-04 03:01:29,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 16 new quantified variables, introduced 54 case distinctions, treesize of input 1898 treesize of output 3113 [2025-03-04 03:01:29,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:29,314 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:29,325 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:29,326 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 03:01:29,756 INFO L349 Elim1Store]: treesize reduction 330, result has 6.3 percent of original size [2025-03-04 03:01:29,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 17 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 13 new quantified variables, introduced 18 case distinctions, treesize of input 1116 treesize of output 3808 [2025-03-04 03:01:30,645 INFO L349 Elim1Store]: treesize reduction 166, result has 30.8 percent of original size [2025-03-04 03:01:30,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 7294 treesize of output 6813 [2025-03-04 03:01:30,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:31,202 INFO L224 Elim1Store]: Index analysis took 412 ms [2025-03-04 03:01:32,693 INFO L349 Elim1Store]: treesize reduction 242, result has 14.5 percent of original size [2025-03-04 03:01:32,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 94 treesize of output 157 [2025-03-04 03:01:33,092 INFO L349 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2025-03-04 03:01:33,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 192 treesize of output 216 [2025-03-04 03:01:35,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 54 treesize of output 43 [2025-03-04 03:01:35,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:35,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:35,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 03:01:35,637 INFO L349 Elim1Store]: treesize reduction 85, result has 1.2 percent of original size [2025-03-04 03:01:35,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 25 [2025-03-04 03:01:36,479 INFO L224 Elim1Store]: Index analysis took 188 ms [2025-03-04 03:01:37,188 INFO L349 Elim1Store]: treesize reduction 138, result has 25.4 percent of original size [2025-03-04 03:01:37,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 272 treesize of output 314