./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 e2fb8bed 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-?-e2fb8be-m [2025-03-08 18:11:38,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:11:38,128 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:11:38,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:11:38,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:11:38,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:11:38,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:11:38,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:11:38,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:11:38,160 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:11:38,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:11:38,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:11:38,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:11:38,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:11:38,161 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:11:38,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:11:38,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:11:38,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:11:38,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:11:38,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:11:38,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:11:38,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:11:38,163 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 [2025-03-08 18:11:38,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:11:38,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:11:38,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:11:38,387 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:11:38,387 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:11:38,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i [2025-03-08 18:11:39,617 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cafd831/521342c8b4954568ac1a7581c805408a/FLAG0c843409f [2025-03-08 18:11:40,027 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:11:40,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_swap_contents_harness.i [2025-03-08 18:11:40,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cafd831/521342c8b4954568ac1a7581c805408a/FLAG0c843409f [2025-03-08 18:11:40,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cafd831/521342c8b4954568ac1a7581c805408a [2025-03-08 18:11:40,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:11:40,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:11:40,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:11:40,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:11:40,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:11:40,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:11:40" (1/1) ... [2025-03-08 18:11:40,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1200c0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:40, skipping insertion in model container [2025-03-08 18:11:40,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:11:40" (1/1) ... [2025-03-08 18:11:40,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:11:40,391 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] [2025-03-08 18:11:40,397 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] [2025-03-08 18:11:40,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,802 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,802 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,804 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:40,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,139 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] [2025-03-08 18:11:41,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:11:41,154 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:11:41,164 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] [2025-03-08 18:11:41,169 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] [2025-03-08 18:11:41,207 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,208 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,208 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,209 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,209 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,218 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,221 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,221 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,222 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,222 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:11:41,298 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] [2025-03-08 18:11:41,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:11:41,478 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:11:41,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41 WrapperNode [2025-03-08 18:11:41,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:11:41,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:11:41,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:11:41,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:11:41,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,560 INFO L138 Inliner]: procedures = 668, calls = 1078, calls flagged for inlining = 52, calls inlined = 5, statements flattened = 210 [2025-03-08 18:11:41,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:11:41,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:11:41,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:11:41,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:11:41,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,600 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]. [2025-03-08 18:11:41,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,623 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:11:41,641 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:11:41,641 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:11:41,641 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:11:41,642 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (1/1) ... [2025-03-08 18:11:41,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:11:41,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:41,672 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) [2025-03-08 18:11:41,675 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 [2025-03-08 18:11:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_init [2025-03-08 18:11:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_init [2025-03-08 18:11:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:11:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:11:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:11:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2025-03-08 18:11:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2025-03-08 18:11:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_linked_list_is_allocated [2025-03-08 18:11:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_linked_list_is_allocated [2025-03-08 18:11:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2025-03-08 18:11:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:11:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2025-03-08 18:11:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2025-03-08 18:11:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:11:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:11:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:11:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:11:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:11:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:11:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:11:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:11:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:11:41,882 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:11:41,884 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:11:41,929 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:11:41,954 INFO L1307 $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; [2025-03-08 18:11:42,175 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4700: havoc #t~ret311#1; [2025-03-08 18:11:42,181 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4685: havoc #t~mem302.base, #t~mem302.offset; [2025-03-08 18:11:42,203 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2025-03-08 18:11:42,203 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:11:42,210 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:11:42,210 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:11:42,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:11:42 BoogieIcfgContainer [2025-03-08 18:11:42,211 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:11:42,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:11:42,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:11:42,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:11:42,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:11:40" (1/3) ... [2025-03-08 18:11:42,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b97822b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:11:42, skipping insertion in model container [2025-03-08 18:11:42,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:11:41" (2/3) ... [2025-03-08 18:11:42,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b97822b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:11:42, skipping insertion in model container [2025-03-08 18:11:42,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:11:42" (3/3) ... [2025-03-08 18:11:42,220 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_swap_contents_harness.i [2025-03-08 18:11:42,230 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:11:42,232 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. [2025-03-08 18:11:42,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:11:42,276 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;@99ce394, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:11:42,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:11:42,279 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) [2025-03-08 18:11:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 18:11:42,287 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:42,287 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] [2025-03-08 18:11:42,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:42,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash 574240824, now seen corresponding path program 1 times [2025-03-08 18:11:42,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:42,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718667305] [2025-03-08 18:11:42,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:42,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:42,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:11:42,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:11:42,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:42,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-08 18:11:42,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:42,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718667305] [2025-03-08 18:11:42,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718667305] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594512231] [2025-03-08 18:11:42,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:42,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:42,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:42,681 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) [2025-03-08 18:11:42,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:11:42,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:11:42,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:11:42,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:42,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:42,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:11:42,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 18:11:42,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:11:42,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594512231] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:11:42,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:11:42,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:11:42,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682255042] [2025-03-08 18:11:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:11:42,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:11:42,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:43,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:11:43,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:11:43,010 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) [2025-03-08 18:11:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:43,032 INFO L93 Difference]: Finished difference Result 223 states and 333 transitions. [2025-03-08 18:11:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:11:43,034 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 [2025-03-08 18:11:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:43,040 INFO L225 Difference]: With dead ends: 223 [2025-03-08 18:11:43,040 INFO L226 Difference]: Without dead ends: 106 [2025-03-08 18:11:43,043 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 [2025-03-08 18:11:43,045 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 [2025-03-08 18:11:43,045 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] [2025-03-08 18:11:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-03-08 18:11:43,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2025-03-08 18:11:43,069 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) [2025-03-08 18:11:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 146 transitions. [2025-03-08 18:11:43,074 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 146 transitions. Word has length 102 [2025-03-08 18:11:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:11:43,074 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 146 transitions. [2025-03-08 18:11:43,075 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) [2025-03-08 18:11:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 146 transitions. [2025-03-08 18:11:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 18:11:43,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:43,078 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] [2025-03-08 18:11:43,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 18:11:43,279 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 [2025-03-08 18:11:43,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:43,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:43,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1274253083, now seen corresponding path program 1 times [2025-03-08 18:11:43,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:43,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938433226] [2025-03-08 18:11:43,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:43,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:43,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:11:43,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:11:43,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:43,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:46,239 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-08 18:11:46,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938433226] [2025-03-08 18:11:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938433226] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557266131] [2025-03-08 18:11:46,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:46,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:46,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:46,242 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) [2025-03-08 18:11:46,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:11:46,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:11:46,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:11:46,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:46,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:46,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-03-08 18:11:46,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:46,618 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 [2025-03-08 18:11:46,624 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 [2025-03-08 18:11:46,798 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 [2025-03-08 18:11:46,807 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 [2025-03-08 18:11:46,886 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:11:46,886 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 [2025-03-08 18:11:46,894 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 [2025-03-08 18:11:46,914 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:11:46,914 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 [2025-03-08 18:11:47,762 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-03-08 18:11:47,763 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 [2025-03-08 18:11:47,768 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-03-08 18:11:47,768 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 [2025-03-08 18:11:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 18:11:47,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 18:11:48,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 18:11:48,038 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 [2025-03-08 18:11:48,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 18:11:48,045 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 [2025-03-08 18:11:48,062 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 [2025-03-08 18:11:48,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557266131] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:48,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 18:11:48,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 26 [2025-03-08 18:11:48,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576523179] [2025-03-08 18:11:48,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 18:11:48,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-08 18:11:48,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:48,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-08 18:11:48,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=721, Unknown=1, NotChecked=54, Total=870 [2025-03-08 18:11:48,069 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) [2025-03-08 18:11:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:50,217 INFO L93 Difference]: Finished difference Result 250 states and 347 transitions. [2025-03-08 18:11:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 18:11:50,218 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 [2025-03-08 18:11:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:50,221 INFO L225 Difference]: With dead ends: 250 [2025-03-08 18:11:50,221 INFO L226 Difference]: Without dead ends: 182 [2025-03-08 18:11:50,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 155 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=1234, Unknown=1, NotChecked=72, Total=1482 [2025-03-08 18:11:50,222 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 166 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 102 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.8s IncrementalHoareTripleChecker+Time [2025-03-08 18:11:50,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 799 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1825 Invalid, 7 Unknown, 0 Unchecked, 1.8s Time] [2025-03-08 18:11:50,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-03-08 18:11:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2025-03-08 18:11:50,240 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) [2025-03-08 18:11:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 244 transitions. [2025-03-08 18:11:50,242 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 244 transitions. Word has length 102 [2025-03-08 18:11:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:11:50,243 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 244 transitions. [2025-03-08 18:11:50,243 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) [2025-03-08 18:11:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 244 transitions. [2025-03-08 18:11:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-08 18:11:50,245 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:50,245 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] [2025-03-08 18:11:50,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 18:11:50,450 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 [2025-03-08 18:11:50,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:50,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash -8021190, now seen corresponding path program 1 times [2025-03-08 18:11:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:50,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928603981] [2025-03-08 18:11:50,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:50,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:50,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 18:11:50,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 18:11:50,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:50,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-03-08 18:11:50,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:50,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928603981] [2025-03-08 18:11:50,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928603981] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:50,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125835837] [2025-03-08 18:11:50,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:50,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:50,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:50,877 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) [2025-03-08 18:11:50,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 18:11:51,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 18:11:51,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 18:11:51,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:51,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:51,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 68 conjuncts are in the unsatisfiable core [2025-03-08 18:11:51,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:51,115 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 [2025-03-08 18:11:51,160 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 [2025-03-08 18:11:51,167 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 [2025-03-08 18:11:51,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,233 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 [2025-03-08 18:11:51,249 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:11:51,249 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 [2025-03-08 18:11:51,259 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 [2025-03-08 18:11:51,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,264 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 [2025-03-08 18:11:51,281 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:11:51,281 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 [2025-03-08 18:11:51,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,293 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 [2025-03-08 18:11:51,374 INFO L349 Elim1Store]: treesize reduction 56, result has 8.2 percent of original size [2025-03-08 18:11:51,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 97 [2025-03-08 18:11:51,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,394 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 51 treesize of output 46 [2025-03-08 18:11:51,401 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 1 [2025-03-08 18:11:51,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 18:11:51,424 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 1 case distinctions, treesize of input 31 treesize of output 25 [2025-03-08 18:11:51,430 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 [2025-03-08 18:11:51,432 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 [2025-03-08 18:11:51,439 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 26 treesize of output 1 [2025-03-08 18:11:51,676 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 119 treesize of output 108 [2025-03-08 18:11:51,680 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 27 treesize of output 20 [2025-03-08 18:11:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,691 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 117 [2025-03-08 18:11:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:11:51,700 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 106 [2025-03-08 18:11:51,732 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 13 treesize of output 9 [2025-03-08 18:11:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 49 proven. 9 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 18:11:52,213 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 18:11:52,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125835837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:52,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 18:11:52,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 18] total 22 [2025-03-08 18:11:52,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25571554] [2025-03-08 18:11:52,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 18:11:52,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-08 18:11:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:52,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-08 18:11:52,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=666, Unknown=13, NotChecked=0, Total=756 [2025-03-08 18:11:52,583 INFO L87 Difference]: Start difference. First operand 175 states and 244 transitions. Second operand has 22 states, 18 states have (on average 4.555555555555555) internal successors, (82), 17 states have internal predecessors, (82), 8 states have call successors, (25), 4 states have call predecessors, (25), 7 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2025-03-08 18:11:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:55,379 INFO L93 Difference]: Finished difference Result 388 states and 548 transitions. [2025-03-08 18:11:55,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-08 18:11:55,379 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 4.555555555555555) internal successors, (82), 17 states have internal predecessors, (82), 8 states have call successors, (25), 4 states have call predecessors, (25), 7 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) Word has length 103 [2025-03-08 18:11:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:55,382 INFO L225 Difference]: With dead ends: 388 [2025-03-08 18:11:55,382 INFO L226 Difference]: Without dead ends: 246 [2025-03-08 18:11:55,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=235, Invalid=1905, Unknown=22, NotChecked=0, Total=2162 [2025-03-08 18:11:55,383 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 273 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 149 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:11:55,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 588 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1668 Invalid, 23 Unknown, 0 Unchecked, 2.1s Time] [2025-03-08 18:11:55,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2025-03-08 18:11:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 244. [2025-03-08 18:11:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 155 states have (on average 1.2838709677419355) internal successors, (199), 164 states have internal predecessors, (199), 64 states have call successors, (64), 23 states have call predecessors, (64), 24 states have return successors, (79), 59 states have call predecessors, (79), 62 states have call successors, (79) [2025-03-08 18:11:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 342 transitions. [2025-03-08 18:11:55,412 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 342 transitions. Word has length 103 [2025-03-08 18:11:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:11:55,413 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 342 transitions. [2025-03-08 18:11:55,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 4.555555555555555) internal successors, (82), 17 states have internal predecessors, (82), 8 states have call successors, (25), 4 states have call predecessors, (25), 7 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2025-03-08 18:11:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 342 transitions. [2025-03-08 18:11:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 18:11:55,415 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:55,415 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1] [2025-03-08 18:11:55,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 18:11:55,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:55,616 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:55,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2127920723, now seen corresponding path program 1 times [2025-03-08 18:11:55,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:55,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133469348] [2025-03-08 18:11:55,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:55,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:55,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 18:11:55,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 18:11:55,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:55,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-08 18:11:55,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:55,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133469348] [2025-03-08 18:11:55,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133469348] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717963920] [2025-03-08 18:11:55,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:55,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:55,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:55,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:11:55,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 18:11:55,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 18:11:56,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 18:11:56,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:56,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:56,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 18:11:56,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-08 18:11:56,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:11:56,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717963920] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:11:56,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:11:56,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-08 18:11:56,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778037596] [2025-03-08 18:11:56,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:11:56,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 18:11:56,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:56,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 18:11:56,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-08 18:11:56,143 INFO L87 Difference]: Start difference. First operand 244 states and 342 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 18:11:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:56,481 INFO L93 Difference]: Finished difference Result 385 states and 543 transitions. [2025-03-08 18:11:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 18:11:56,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 105 [2025-03-08 18:11:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:56,483 INFO L225 Difference]: With dead ends: 385 [2025-03-08 18:11:56,483 INFO L226 Difference]: Without dead ends: 259 [2025-03-08 18:11:56,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2025-03-08 18:11:56,488 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 165 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:11:56,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 578 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 18:11:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2025-03-08 18:11:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2025-03-08 18:11:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 159 states have (on average 1.2767295597484276) internal successors, (203), 169 states have internal predecessors, (203), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (83), 59 states have call predecessors, (83), 62 states have call successors, (83) [2025-03-08 18:11:56,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 350 transitions. [2025-03-08 18:11:56,527 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 350 transitions. Word has length 105 [2025-03-08 18:11:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:11:56,527 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 350 transitions. [2025-03-08 18:11:56,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 18:11:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 350 transitions. [2025-03-08 18:11:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-08 18:11:56,530 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:56,530 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1] [2025-03-08 18:11:56,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 18:11:56,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:56,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:56,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1859105803, now seen corresponding path program 1 times [2025-03-08 18:11:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:56,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760902126] [2025-03-08 18:11:56,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:56,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 18:11:56,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 18:11:56,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:56,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-08 18:11:56,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:56,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760902126] [2025-03-08 18:11:56,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760902126] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:56,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733633063] [2025-03-08 18:11:56,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:56,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:56,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:56,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:11:56,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 18:11:57,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 18:11:57,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 18:11:57,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:57,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:57,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-08 18:11:57,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:57,316 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-08 18:11:57,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:11:57,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733633063] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:11:57,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:11:57,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-03-08 18:11:57,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136982272] [2025-03-08 18:11:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:11:57,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 18:11:57,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:57,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 18:11:57,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2025-03-08 18:11:57,317 INFO L87 Difference]: Start difference. First operand 249 states and 350 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 18:11:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:57,668 INFO L93 Difference]: Finished difference Result 415 states and 591 transitions. [2025-03-08 18:11:57,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 18:11:57,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 107 [2025-03-08 18:11:57,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:57,670 INFO L225 Difference]: With dead ends: 415 [2025-03-08 18:11:57,670 INFO L226 Difference]: Without dead ends: 286 [2025-03-08 18:11:57,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2025-03-08 18:11:57,672 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 180 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:11:57,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 664 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 18:11:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2025-03-08 18:11:57,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 255. [2025-03-08 18:11:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 165 states have (on average 1.284848484848485) internal successors, (212), 175 states have internal predecessors, (212), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (83), 59 states have call predecessors, (83), 62 states have call successors, (83) [2025-03-08 18:11:57,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 359 transitions. [2025-03-08 18:11:57,701 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 359 transitions. Word has length 107 [2025-03-08 18:11:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:11:57,702 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 359 transitions. [2025-03-08 18:11:57,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-08 18:11:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 359 transitions. [2025-03-08 18:11:57,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 18:11:57,703 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:57,703 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2025-03-08 18:11:57,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 18:11:57,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:57,904 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:57,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1824904688, now seen corresponding path program 1 times [2025-03-08 18:11:57,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:57,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794476525] [2025-03-08 18:11:57,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:57,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:57,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 18:11:57,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 18:11:57,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:57,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-08 18:11:58,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794476525] [2025-03-08 18:11:58,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794476525] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849564134] [2025-03-08 18:11:58,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:58,141 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:11:58,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 18:11:58,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 18:11:58,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 18:11:58,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:58,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:58,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 18:11:58,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-08 18:11:58,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:11:58,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849564134] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:11:58,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:11:58,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-03-08 18:11:58,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445095023] [2025-03-08 18:11:58,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:11:58,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:11:58,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:58,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:11:58,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:11:58,409 INFO L87 Difference]: Start difference. First operand 255 states and 359 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 18:11:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:58,438 INFO L93 Difference]: Finished difference Result 473 states and 685 transitions. [2025-03-08 18:11:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:11:58,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2025-03-08 18:11:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:58,441 INFO L225 Difference]: With dead ends: 473 [2025-03-08 18:11:58,441 INFO L226 Difference]: Without dead ends: 267 [2025-03-08 18:11:58,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:11:58,442 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 2 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:11:58,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 280 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:11:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2025-03-08 18:11:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 258. [2025-03-08 18:11:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 168 states have (on average 1.2797619047619047) internal successors, (215), 178 states have internal predecessors, (215), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (83), 59 states have call predecessors, (83), 62 states have call successors, (83) [2025-03-08 18:11:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 362 transitions. [2025-03-08 18:11:58,467 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 362 transitions. Word has length 108 [2025-03-08 18:11:58,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:11:58,468 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 362 transitions. [2025-03-08 18:11:58,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 18:11:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 362 transitions. [2025-03-08 18:11:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-08 18:11:58,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:11:58,470 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:11:58,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-08 18:11:58,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:58,671 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:11:58,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:11:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash -955950158, now seen corresponding path program 1 times [2025-03-08 18:11:58,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:11:58,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868677606] [2025-03-08 18:11:58,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:58,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:11:58,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 18:11:58,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 18:11:58,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:58,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 18:11:59,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:11:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868677606] [2025-03-08 18:11:59,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868677606] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:11:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334701976] [2025-03-08 18:11:59,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:11:59,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:11:59,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:11:59,171 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:11:59,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 18:11:59,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 18:11:59,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 18:11:59,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:11:59,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:11:59,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-08 18:11:59,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:11:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-08 18:11:59,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:11:59,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334701976] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:11:59,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:11:59,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2025-03-08 18:11:59,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781438661] [2025-03-08 18:11:59,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:11:59,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 18:11:59,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:11:59,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 18:11:59,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2025-03-08 18:11:59,587 INFO L87 Difference]: Start difference. First operand 258 states and 362 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-08 18:11:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:11:59,985 INFO L93 Difference]: Finished difference Result 408 states and 579 transitions. [2025-03-08 18:11:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 18:11:59,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 116 [2025-03-08 18:11:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:11:59,989 INFO L225 Difference]: With dead ends: 408 [2025-03-08 18:11:59,989 INFO L226 Difference]: Without dead ends: 276 [2025-03-08 18:11:59,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2025-03-08 18:11:59,990 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 144 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:11:59,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 742 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 18:11:59,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-03-08 18:12:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 259. [2025-03-08 18:12:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 169 states have (on average 1.2781065088757397) internal successors, (216), 179 states have internal predecessors, (216), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (83), 59 states have call predecessors, (83), 62 states have call successors, (83) [2025-03-08 18:12:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 363 transitions. [2025-03-08 18:12:00,015 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 363 transitions. Word has length 116 [2025-03-08 18:12:00,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:12:00,015 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 363 transitions. [2025-03-08 18:12:00,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-08 18:12:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 363 transitions. [2025-03-08 18:12:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-08 18:12:00,018 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:12:00,018 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:12:00,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-08 18:12:00,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:12:00,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:12:00,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:12:00,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2084697172, now seen corresponding path program 1 times [2025-03-08 18:12:00,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:12:00,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693216181] [2025-03-08 18:12:00,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:12:00,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:12:00,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-08 18:12:00,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-08 18:12:00,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:12:00,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:12:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 18:12:00,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:12:00,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693216181] [2025-03-08 18:12:00,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693216181] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:12:00,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091842284] [2025-03-08 18:12:00,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:12:00,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:12:00,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:12:00,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:12:00,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 18:12:00,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-08 18:12:00,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-08 18:12:00,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:12:00,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:12:00,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-08 18:12:00,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:12:00,935 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 24 treesize of output 9 [2025-03-08 18:12:00,939 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 22 treesize of output 7 [2025-03-08 18:12:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-08 18:12:02,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:12:02,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091842284] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:12:02,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:12:02,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8] total 22 [2025-03-08 18:12:02,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342060852] [2025-03-08 18:12:02,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:12:02,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-08 18:12:02,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:12:02,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-08 18:12:02,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2025-03-08 18:12:02,018 INFO L87 Difference]: Start difference. First operand 259 states and 363 transitions. Second operand has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (14), 9 states have call predecessors, (14), 7 states have call successors, (14) [2025-03-08 18:12:06,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:10,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:14,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:18,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:22,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:26,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:30,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:34,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:38,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:43,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:47,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:51,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:55,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:12:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:12:55,412 INFO L93 Difference]: Finished difference Result 355 states and 495 transitions. [2025-03-08 18:12:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 18:12:55,412 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (14), 9 states have call predecessors, (14), 7 states have call successors, (14) Word has length 118 [2025-03-08 18:12:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:12:55,414 INFO L225 Difference]: With dead ends: 355 [2025-03-08 18:12:55,415 INFO L226 Difference]: Without dead ends: 264 [2025-03-08 18:12:55,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 97 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2025-03-08 18:12:55,416 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 206 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 82 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:12:55,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1020 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 603 Invalid, 13 Unknown, 0 Unchecked, 53.1s Time] [2025-03-08 18:12:55,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2025-03-08 18:12:55,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 252. [2025-03-08 18:12:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 174 states have internal predecessors, (209), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (81), 58 states have call predecessors, (81), 60 states have call successors, (81) [2025-03-08 18:12:55,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 352 transitions. [2025-03-08 18:12:55,450 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 352 transitions. Word has length 118 [2025-03-08 18:12:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:12:55,450 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 352 transitions. [2025-03-08 18:12:55,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (14), 9 states have call predecessors, (14), 7 states have call successors, (14) [2025-03-08 18:12:55,451 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 352 transitions. [2025-03-08 18:12:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-08 18:12:55,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:12:55,452 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:12:55,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-08 18:12:55,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-08 18:12:55,653 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:12:55,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:12:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1760691679, now seen corresponding path program 2 times [2025-03-08 18:12:55,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:12:55,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592321879] [2025-03-08 18:12:55,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 18:12:55,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:12:55,691 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-08 18:12:55,718 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 18:12:55,718 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 18:12:55,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:12:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-08 18:12:56,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:12:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592321879] [2025-03-08 18:12:56,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592321879] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:12:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555177199] [2025-03-08 18:12:56,175 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 18:12:56,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:12:56,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:12:56,178 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:12:56,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 18:12:56,497 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-08 18:12:56,704 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 18:12:56,704 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 18:12:56,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:12:56,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 136 conjuncts are in the unsatisfiable core [2025-03-08 18:12:56,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:12:56,722 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 [2025-03-08 18:12:56,771 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 [2025-03-08 18:12:56,779 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 [2025-03-08 18:12:56,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:56,813 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 [2025-03-08 18:12:56,825 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:12:56,826 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 [2025-03-08 18:12:56,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:56,832 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 [2025-03-08 18:12:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:56,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:56,847 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 [2025-03-08 18:12:56,862 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:12:56,862 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 [2025-03-08 18:12:56,868 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 [2025-03-08 18:12:56,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:56,950 INFO L349 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2025-03-08 18:12:56,950 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 61 [2025-03-08 18:12:56,972 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2025-03-08 18:12:56,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 50 [2025-03-08 18:12:56,993 INFO L349 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2025-03-08 18:12:56,993 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 1 case distinctions, treesize of input 37 treesize of output 32 [2025-03-08 18:12:57,026 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 [2025-03-08 18:12:57,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:57,113 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 30 treesize of output 20 [2025-03-08 18:12:57,135 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:12:57,136 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 32 treesize of output 29 [2025-03-08 18:12:57,150 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-08 18:12:57,150 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 30 treesize of output 27 [2025-03-08 18:12:57,410 INFO L349 Elim1Store]: treesize reduction 166, result has 44.9 percent of original size [2025-03-08 18:12:57,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 218 [2025-03-08 18:12:57,443 INFO L349 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size [2025-03-08 18:12:57,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 133 treesize of output 152 [2025-03-08 18:12:57,455 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 89 treesize of output 90 [2025-03-08 18:12:58,042 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 18:12:58,043 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2025-03-08 18:12:58,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-03-08 18:12:58,513 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 13 treesize of output 9 [2025-03-08 18:12:58,906 INFO L349 Elim1Store]: treesize reduction 73, result has 9.9 percent of original size [2025-03-08 18:12:58,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 311 treesize of output 171 [2025-03-08 18:12:58,949 INFO L349 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2025-03-08 18:12:58,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 182 [2025-03-08 18:12:59,102 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 [2025-03-08 18:12:59,111 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 [2025-03-08 18:12:59,197 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 63 treesize of output 53 [2025-03-08 18:12:59,227 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 [2025-03-08 18:12:59,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,568 INFO L349 Elim1Store]: treesize reduction 147, result has 3.3 percent of original size [2025-03-08 18:12:59,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 415 treesize of output 413 [2025-03-08 18:12:59,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,661 INFO L349 Elim1Store]: treesize reduction 481, result has 14.9 percent of original size [2025-03-08 18:12:59,662 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 12 case distinctions, treesize of input 363 treesize of output 413 [2025-03-08 18:12:59,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 55 treesize of output 59 [2025-03-08 18:12:59,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 57 treesize of output 61 [2025-03-08 18:12:59,727 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2025-03-08 18:12:59,744 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2025-03-08 18:12:59,957 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-08 18:12:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:12:59,982 INFO L349 Elim1Store]: treesize reduction 55, result has 19.1 percent of original size [2025-03-08 18:12:59,983 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 201 treesize of output 150 [2025-03-08 18:13:00,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 27 treesize of output 23 [2025-03-08 18:13:00,108 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 27 treesize of output 23 [2025-03-08 18:13:00,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:13:00,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:13:00,392 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 598 treesize of output 564