./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:21:01,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:21:01,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:21:01,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:21:01,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:21:01,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:21:01,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:21:01,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:21:01,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:21:01,379 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:21:01,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:21:01,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:21:01,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:21:01,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:21:01,380 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:21:01,380 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:21:01,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:21:01,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:21:01,381 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 valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 [2025-03-08 22:21:01,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:21:01,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:21:01,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:21:01,593 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:21:01,593 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:21:01,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2025-03-08 22:21:02,694 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01ab49e23/1b30759560524dbdbf6c486e90c3c24f/FLAG666374e7a [2025-03-08 22:21:02,987 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:21:02,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2025-03-08 22:21:03,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01ab49e23/1b30759560524dbdbf6c486e90c3c24f/FLAG666374e7a [2025-03-08 22:21:03,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01ab49e23/1b30759560524dbdbf6c486e90c3c24f [2025-03-08 22:21:03,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:21:03,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:21:03,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:21:03,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:21:03,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:21:03,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:03,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473435d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03, skipping insertion in model container [2025-03-08 22:21:03,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:03,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:21:03,593 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,618 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,621 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,623 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,626 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,648 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,653 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,655 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,660 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,678 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,678 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,694 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,694 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,695 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,695 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,717 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,717 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,718 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,718 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,734 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,735 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:21:03,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:21:03,758 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:21:03,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:21:03,902 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:21:03,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03 WrapperNode [2025-03-08 22:21:03,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:21:03,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:21:03,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:21:03,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:21:03,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:03,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,009 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3310 [2025-03-08 22:21:04,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:21:04,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:21:04,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:21:04,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:21:04,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,135 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [106, 2, 372]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 86 writes are split as follows [4, 0, 82]. [2025-03-08 22:21:04,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:21:04,220 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:21:04,224 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:21:04,224 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:21:04,225 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (1/1) ... [2025-03-08 22:21:04,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:21:04,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:21:04,278 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 22:21:04,281 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 22:21:04,299 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2025-03-08 22:21:04,299 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2025-03-08 22:21:04,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:21:04,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 22:21:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 22:21:04,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:21:04,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:21:04,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:21:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:21:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:21:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:21:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:21:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:21:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 22:21:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 22:21:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 22:21:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:21:04,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:21:04,509 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:21:04,511 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:21:06,502 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-08 22:21:06,646 INFO L? ?]: Removed 782 outVars from TransFormulas that were not future-live. [2025-03-08 22:21:06,646 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:21:06,743 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:21:06,744 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2025-03-08 22:21:06,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:21:06 BoogieIcfgContainer [2025-03-08 22:21:06,744 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:21:06,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:21:06,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:21:06,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:21:06,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:21:03" (1/3) ... [2025-03-08 22:21:06,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409e489b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:21:06, skipping insertion in model container [2025-03-08 22:21:06,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:21:03" (2/3) ... [2025-03-08 22:21:06,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409e489b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:21:06, skipping insertion in model container [2025-03-08 22:21:06,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:21:06" (3/3) ... [2025-03-08 22:21:06,752 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i [2025-03-08 22:21:06,763 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:21:06,764 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test10-1.i that has 6 procedures, 1027 locations, 1 initial locations, 78 loop locations, and 2 error locations. [2025-03-08 22:21:06,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:21:06,816 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=None, 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;@62dae8db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:21:06,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:21:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 1019 states, 999 states have (on average 1.6256256256256256) internal successors, (1624), 1005 states have internal predecessors, (1624), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 22:21:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-08 22:21:06,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:06,830 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:06,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:06,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash -702444487, now seen corresponding path program 1 times [2025-03-08 22:21:06,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:06,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751369249] [2025-03-08 22:21:06,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:06,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 22:21:06,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 22:21:06,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:06,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:21:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751369249] [2025-03-08 22:21:06,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751369249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:06,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:06,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:21:06,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104860945] [2025-03-08 22:21:06,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:06,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:21:06,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:06,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:21:06,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:21:07,000 INFO L87 Difference]: Start difference. First operand has 1019 states, 999 states have (on average 1.6256256256256256) internal successors, (1624), 1005 states have internal predecessors, (1624), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:07,206 INFO L93 Difference]: Finished difference Result 1018 states and 1503 transitions. [2025-03-08 22:21:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:21:07,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-08 22:21:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:07,225 INFO L225 Difference]: With dead ends: 1018 [2025-03-08 22:21:07,225 INFO L226 Difference]: Without dead ends: 1016 [2025-03-08 22:21:07,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:21:07,229 INFO L435 NwaCegarLoop]: 1383 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:07,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1383 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2025-03-08 22:21:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2025-03-08 22:21:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 997 states have (on average 1.4774322968906721) internal successors, (1473), 1002 states have internal predecessors, (1473), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 22:21:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1501 transitions. [2025-03-08 22:21:07,303 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1501 transitions. Word has length 14 [2025-03-08 22:21:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:07,303 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1501 transitions. [2025-03-08 22:21:07,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1501 transitions. [2025-03-08 22:21:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-08 22:21:07,306 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:07,306 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:07,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:21:07,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:07,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:07,307 INFO L85 PathProgramCache]: Analyzing trace with hash -461582399, now seen corresponding path program 1 times [2025-03-08 22:21:07,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:07,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161786869] [2025-03-08 22:21:07,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:07,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:07,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-08 22:21:07,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-08 22:21:07,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:07,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:21:07,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:07,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161786869] [2025-03-08 22:21:07,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161786869] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:07,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:07,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:21:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357053180] [2025-03-08 22:21:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:07,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:21:07,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:07,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:21:07,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:21:07,734 INFO L87 Difference]: Start difference. First operand 1016 states and 1501 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:08,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:08,148 INFO L93 Difference]: Finished difference Result 1396 states and 2056 transitions. [2025-03-08 22:21:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:21:08,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-03-08 22:21:08,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:08,153 INFO L225 Difference]: With dead ends: 1396 [2025-03-08 22:21:08,154 INFO L226 Difference]: Without dead ends: 1396 [2025-03-08 22:21:08,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:21:08,154 INFO L435 NwaCegarLoop]: 1455 mSDtfsCounter, 542 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:08,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 4220 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:21:08,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2025-03-08 22:21:08,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1018. [2025-03-08 22:21:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 999 states have (on average 1.4764764764764764) internal successors, (1475), 1004 states have internal predecessors, (1475), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 22:21:08,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1503 transitions. [2025-03-08 22:21:08,187 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1503 transitions. Word has length 67 [2025-03-08 22:21:08,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:08,188 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1503 transitions. [2025-03-08 22:21:08,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1503 transitions. [2025-03-08 22:21:08,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-08 22:21:08,193 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:08,193 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:08,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:21:08,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:08,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:08,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1931277587, now seen corresponding path program 1 times [2025-03-08 22:21:08,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:08,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659511823] [2025-03-08 22:21:08,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:08,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:08,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 22:21:08,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 22:21:08,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:08,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:21:08,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659511823] [2025-03-08 22:21:08,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659511823] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:08,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:08,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:21:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272783163] [2025-03-08 22:21:08,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:08,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:21:08,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:08,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:21:08,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:21:08,717 INFO L87 Difference]: Start difference. First operand 1018 states and 1503 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:09,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:09,232 INFO L93 Difference]: Finished difference Result 1396 states and 2055 transitions. [2025-03-08 22:21:09,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:21:09,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2025-03-08 22:21:09,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:09,237 INFO L225 Difference]: With dead ends: 1396 [2025-03-08 22:21:09,237 INFO L226 Difference]: Without dead ends: 1396 [2025-03-08 22:21:09,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:21:09,238 INFO L435 NwaCegarLoop]: 1423 mSDtfsCounter, 540 mSDsluCounter, 5397 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:09,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 6820 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 22:21:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2025-03-08 22:21:09,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1021. [2025-03-08 22:21:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1002 states have (on average 1.4750499001996007) internal successors, (1478), 1007 states have internal predecessors, (1478), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 22:21:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1506 transitions. [2025-03-08 22:21:09,266 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1506 transitions. Word has length 142 [2025-03-08 22:21:09,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:09,266 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1506 transitions. [2025-03-08 22:21:09,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:09,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1506 transitions. [2025-03-08 22:21:09,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-08 22:21:09,270 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:09,270 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:09,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:21:09,270 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:09,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:09,271 INFO L85 PathProgramCache]: Analyzing trace with hash -210397494, now seen corresponding path program 1 times [2025-03-08 22:21:09,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543100793] [2025-03-08 22:21:09,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:09,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-08 22:21:09,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-08 22:21:09,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:09,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:21:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543100793] [2025-03-08 22:21:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543100793] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:09,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:09,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:21:09,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166227949] [2025-03-08 22:21:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:09,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:21:09,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:09,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:21:09,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:21:09,571 INFO L87 Difference]: Start difference. First operand 1021 states and 1506 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:09,809 INFO L93 Difference]: Finished difference Result 1024 states and 1502 transitions. [2025-03-08 22:21:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:21:09,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2025-03-08 22:21:09,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:09,813 INFO L225 Difference]: With dead ends: 1024 [2025-03-08 22:21:09,813 INFO L226 Difference]: Without dead ends: 1024 [2025-03-08 22:21:09,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:21:09,814 INFO L435 NwaCegarLoop]: 1354 mSDtfsCounter, 105 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:09,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 3978 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2025-03-08 22:21:09,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1021. [2025-03-08 22:21:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1002 states have (on average 1.468063872255489) internal successors, (1471), 1007 states have internal predecessors, (1471), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 22:21:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1499 transitions. [2025-03-08 22:21:09,835 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1499 transitions. Word has length 211 [2025-03-08 22:21:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:09,836 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1499 transitions. [2025-03-08 22:21:09,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1499 transitions. [2025-03-08 22:21:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-08 22:21:09,839 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:09,839 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:09,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:21:09,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:09,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1373816272, now seen corresponding path program 1 times [2025-03-08 22:21:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:09,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077045091] [2025-03-08 22:21:09,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:09,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:09,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-08 22:21:09,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-08 22:21:09,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:09,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:21:10,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077045091] [2025-03-08 22:21:10,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077045091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:10,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:10,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:21:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851167628] [2025-03-08 22:21:10,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:10,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:21:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:10,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:21:10,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:21:10,084 INFO L87 Difference]: Start difference. First operand 1021 states and 1499 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:10,355 INFO L93 Difference]: Finished difference Result 1589 states and 2345 transitions. [2025-03-08 22:21:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:21:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2025-03-08 22:21:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:10,361 INFO L225 Difference]: With dead ends: 1589 [2025-03-08 22:21:10,361 INFO L226 Difference]: Without dead ends: 1589 [2025-03-08 22:21:10,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:21:10,361 INFO L435 NwaCegarLoop]: 1372 mSDtfsCounter, 788 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:10,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2726 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:10,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2025-03-08 22:21:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1429. [2025-03-08 22:21:10,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1408 states have (on average 1.4751420454545454) internal successors, (2077), 1413 states have internal predecessors, (2077), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 22:21:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2109 transitions. [2025-03-08 22:21:10,393 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2109 transitions. Word has length 211 [2025-03-08 22:21:10,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:10,393 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 2109 transitions. [2025-03-08 22:21:10,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:21:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2109 transitions. [2025-03-08 22:21:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-08 22:21:10,396 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:10,396 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:10,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:21:10,397 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:10,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:10,397 INFO L85 PathProgramCache]: Analyzing trace with hash 592975597, now seen corresponding path program 1 times [2025-03-08 22:21:10,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:10,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014264621] [2025-03-08 22:21:10,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:10,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:10,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-08 22:21:10,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-08 22:21:10,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:10,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:10,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:21:10,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:10,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014264621] [2025-03-08 22:21:10,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014264621] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:10,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:10,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:21:10,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738827193] [2025-03-08 22:21:10,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:10,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:21:10,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:10,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:21:10,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:21:10,698 INFO L87 Difference]: Start difference. First operand 1429 states and 2109 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:21:10,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:10,945 INFO L93 Difference]: Finished difference Result 1432 states and 2105 transitions. [2025-03-08 22:21:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:21:10,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 226 [2025-03-08 22:21:10,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:10,950 INFO L225 Difference]: With dead ends: 1432 [2025-03-08 22:21:10,950 INFO L226 Difference]: Without dead ends: 1432 [2025-03-08 22:21:10,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:21:10,952 INFO L435 NwaCegarLoop]: 1347 mSDtfsCounter, 105 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:10,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 3957 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:10,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2025-03-08 22:21:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1429. [2025-03-08 22:21:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1408 states have (on average 1.4701704545454546) internal successors, (2070), 1413 states have internal predecessors, (2070), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 22:21:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2102 transitions. [2025-03-08 22:21:10,982 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2102 transitions. Word has length 226 [2025-03-08 22:21:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:10,984 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 2102 transitions. [2025-03-08 22:21:10,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:21:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2102 transitions. [2025-03-08 22:21:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-08 22:21:10,987 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:10,987 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:10,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:21:10,988 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:10,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:10,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1617230918, now seen corresponding path program 1 times [2025-03-08 22:21:10,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:10,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591267725] [2025-03-08 22:21:10,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:11,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-08 22:21:11,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-08 22:21:11,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:11,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:21:11,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:11,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591267725] [2025-03-08 22:21:11,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591267725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:11,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:11,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:21:11,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950337683] [2025-03-08 22:21:11,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:11,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:21:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:11,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:21:11,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:21:11,237 INFO L87 Difference]: Start difference. First operand 1429 states and 2102 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:21:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:11,424 INFO L93 Difference]: Finished difference Result 1435 states and 2108 transitions. [2025-03-08 22:21:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:21:11,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 226 [2025-03-08 22:21:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:11,430 INFO L225 Difference]: With dead ends: 1435 [2025-03-08 22:21:11,430 INFO L226 Difference]: Without dead ends: 1435 [2025-03-08 22:21:11,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:21:11,431 INFO L435 NwaCegarLoop]: 1361 mSDtfsCounter, 1 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:11,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2700 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2025-03-08 22:21:11,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1435. [2025-03-08 22:21:11,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1414 states have (on average 1.4681753889674682) internal successors, (2076), 1419 states have internal predecessors, (2076), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 22:21:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2108 transitions. [2025-03-08 22:21:11,463 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2108 transitions. Word has length 226 [2025-03-08 22:21:11,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:11,464 INFO L471 AbstractCegarLoop]: Abstraction has 1435 states and 2108 transitions. [2025-03-08 22:21:11,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:21:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2108 transitions. [2025-03-08 22:21:11,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-08 22:21:11,467 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:11,467 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:11,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:21:11,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:11,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:11,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1381552743, now seen corresponding path program 1 times [2025-03-08 22:21:11,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746601354] [2025-03-08 22:21:11,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:11,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:11,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-08 22:21:11,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-08 22:21:11,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:11,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:21:11,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:11,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746601354] [2025-03-08 22:21:11,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746601354] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:11,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:11,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:21:11,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627521381] [2025-03-08 22:21:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:11,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:21:11,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:11,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:21:11,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:21:11,733 INFO L87 Difference]: Start difference. First operand 1435 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:21:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:11,972 INFO L93 Difference]: Finished difference Result 2048 states and 3010 transitions. [2025-03-08 22:21:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:21:11,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 226 [2025-03-08 22:21:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:11,980 INFO L225 Difference]: With dead ends: 2048 [2025-03-08 22:21:11,980 INFO L226 Difference]: Without dead ends: 2048 [2025-03-08 22:21:11,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:21:11,981 INFO L435 NwaCegarLoop]: 1365 mSDtfsCounter, 746 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:11,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 2712 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2025-03-08 22:21:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2040. [2025-03-08 22:21:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2040 states, 2013 states have (on average 1.4694485842026825) internal successors, (2958), 2018 states have internal predecessors, (2958), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-08 22:21:12,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 3002 transitions. [2025-03-08 22:21:12,021 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 3002 transitions. Word has length 226 [2025-03-08 22:21:12,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:12,021 INFO L471 AbstractCegarLoop]: Abstraction has 2040 states and 3002 transitions. [2025-03-08 22:21:12,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:21:12,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 3002 transitions. [2025-03-08 22:21:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2025-03-08 22:21:12,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:12,024 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:12,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:21:12,025 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:12,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:12,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2136246531, now seen corresponding path program 1 times [2025-03-08 22:21:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:12,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867377600] [2025-03-08 22:21:12,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:12,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:12,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 241 statements into 1 equivalence classes. [2025-03-08 22:21:12,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 241 of 241 statements. [2025-03-08 22:21:12,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:12,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:12,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:12,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867377600] [2025-03-08 22:21:12,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867377600] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:12,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:12,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:21:12,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414667987] [2025-03-08 22:21:12,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:12,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:21:12,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:12,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:21:12,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:21:12,356 INFO L87 Difference]: Start difference. First operand 2040 states and 3002 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:21:13,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:13,679 INFO L93 Difference]: Finished difference Result 1617 states and 2363 transitions. [2025-03-08 22:21:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:21:13,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 241 [2025-03-08 22:21:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:13,685 INFO L225 Difference]: With dead ends: 1617 [2025-03-08 22:21:13,685 INFO L226 Difference]: Without dead ends: 1617 [2025-03-08 22:21:13,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:21:13,686 INFO L435 NwaCegarLoop]: 1461 mSDtfsCounter, 2656 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:13,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2656 Valid, 1712 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 22:21:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2025-03-08 22:21:13,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2025-03-08 22:21:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1595 states have (on average 1.4601880877742948) internal successors, (2329), 1600 states have internal predecessors, (2329), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-08 22:21:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2363 transitions. [2025-03-08 22:21:13,721 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2363 transitions. Word has length 241 [2025-03-08 22:21:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:13,721 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2363 transitions. [2025-03-08 22:21:13,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:21:13,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2363 transitions. [2025-03-08 22:21:13,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2025-03-08 22:21:13,725 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:13,725 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:13,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 22:21:13,725 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:13,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:13,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1512289813, now seen corresponding path program 1 times [2025-03-08 22:21:13,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:13,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683484313] [2025-03-08 22:21:13,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:13,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:13,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 251 statements into 1 equivalence classes. [2025-03-08 22:21:13,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 251 of 251 statements. [2025-03-08 22:21:13,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:13,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 22:21:14,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:14,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683484313] [2025-03-08 22:21:14,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683484313] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:14,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:14,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:21:14,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845041531] [2025-03-08 22:21:14,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:14,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:21:14,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:14,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:21:14,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:21:14,046 INFO L87 Difference]: Start difference. First operand 1617 states and 2363 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:14,278 INFO L93 Difference]: Finished difference Result 1575 states and 2286 transitions. [2025-03-08 22:21:14,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:21:14,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 251 [2025-03-08 22:21:14,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:14,283 INFO L225 Difference]: With dead ends: 1575 [2025-03-08 22:21:14,283 INFO L226 Difference]: Without dead ends: 1575 [2025-03-08 22:21:14,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:21:14,284 INFO L435 NwaCegarLoop]: 1273 mSDtfsCounter, 30 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:14,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3800 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:21:14,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2025-03-08 22:21:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2025-03-08 22:21:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1553 states have (on average 1.450096587250483) internal successors, (2252), 1558 states have internal predecessors, (2252), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-08 22:21:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2286 transitions. [2025-03-08 22:21:14,309 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2286 transitions. Word has length 251 [2025-03-08 22:21:14,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:14,309 INFO L471 AbstractCegarLoop]: Abstraction has 1575 states and 2286 transitions. [2025-03-08 22:21:14,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2286 transitions. [2025-03-08 22:21:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2025-03-08 22:21:14,312 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:14,312 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:14,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 22:21:14,312 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:14,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:14,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1526872142, now seen corresponding path program 1 times [2025-03-08 22:21:14,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:14,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800344820] [2025-03-08 22:21:14,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:14,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:14,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 251 statements into 1 equivalence classes. [2025-03-08 22:21:14,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 251 of 251 statements. [2025-03-08 22:21:14,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:14,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:15,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:15,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800344820] [2025-03-08 22:21:15,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800344820] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:21:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513102139] [2025-03-08 22:21:15,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:21:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:21:15,047 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 22:21:15,049 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 22:21:15,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 251 statements into 1 equivalence classes. [2025-03-08 22:21:15,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 251 of 251 statements. [2025-03-08 22:21:15,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:15,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:15,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 22:21:15,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:21:15,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:15,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:21:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:15,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:21:15,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513102139] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:15,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 22:21:15,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-03-08 22:21:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724080956] [2025-03-08 22:21:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:15,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 22:21:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:15,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 22:21:15,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:21:15,911 INFO L87 Difference]: Start difference. First operand 1575 states and 2286 transitions. Second operand has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:19,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 22:21:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:20,209 INFO L93 Difference]: Finished difference Result 1991 states and 2869 transitions. [2025-03-08 22:21:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 22:21:20,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 251 [2025-03-08 22:21:20,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:20,215 INFO L225 Difference]: With dead ends: 1991 [2025-03-08 22:21:20,216 INFO L226 Difference]: Without dead ends: 1991 [2025-03-08 22:21:20,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 240 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-08 22:21:20,216 INFO L435 NwaCegarLoop]: 1231 mSDtfsCounter, 2977 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:20,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 4599 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-03-08 22:21:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2025-03-08 22:21:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1791. [2025-03-08 22:21:20,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1759 states have (on average 1.4445707788516202) internal successors, (2541), 1768 states have internal predecessors, (2541), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 18 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-08 22:21:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2589 transitions. [2025-03-08 22:21:20,242 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2589 transitions. Word has length 251 [2025-03-08 22:21:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:20,243 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2589 transitions. [2025-03-08 22:21:20,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2589 transitions. [2025-03-08 22:21:20,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2025-03-08 22:21:20,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:20,246 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:20,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 22:21:20,447 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,SelfDestructingSolverStorable10 [2025-03-08 22:21:20,447 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:20,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash 758424454, now seen corresponding path program 1 times [2025-03-08 22:21:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:20,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609373966] [2025-03-08 22:21:20,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:20,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-03-08 22:21:20,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-03-08 22:21:20,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:20,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 72 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:21,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:21,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609373966] [2025-03-08 22:21:21,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609373966] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:21:21,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192896645] [2025-03-08 22:21:21,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:21,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:21:21,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:21:21,407 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 22:21:21,408 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 22:21:21,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-03-08 22:21:21,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-03-08 22:21:21,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:21,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:21,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 1641 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 22:21:21,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:21:21,958 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 15 treesize of output 1 [2025-03-08 22:21:22,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:22,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:21:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 72 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:22,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:21:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 72 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:22,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192896645] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:21:22,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:21:22,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 12 [2025-03-08 22:21:22,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377781978] [2025-03-08 22:21:22,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:21:22,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 22:21:22,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:22,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 22:21:22,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:21:22,491 INFO L87 Difference]: Start difference. First operand 1791 states and 2589 transitions. Second operand has 12 states, 12 states have (on average 39.583333333333336) internal successors, (475), 12 states have internal predecessors, (475), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 22:21:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:23,292 INFO L93 Difference]: Finished difference Result 2987 states and 4276 transitions. [2025-03-08 22:21:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 22:21:23,295 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 39.583333333333336) internal successors, (475), 12 states have internal predecessors, (475), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 326 [2025-03-08 22:21:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:23,303 INFO L225 Difference]: With dead ends: 2987 [2025-03-08 22:21:23,303 INFO L226 Difference]: Without dead ends: 2987 [2025-03-08 22:21:23,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 642 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-08 22:21:23,304 INFO L435 NwaCegarLoop]: 1259 mSDtfsCounter, 2995 mSDsluCounter, 8105 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 9364 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:23,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 9364 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 22:21:23,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2025-03-08 22:21:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2615. [2025-03-08 22:21:23,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2571 states have (on average 1.4301828082458188) internal successors, (3677), 2580 states have internal predecessors, (3677), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 29 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-08 22:21:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 3747 transitions. [2025-03-08 22:21:23,340 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 3747 transitions. Word has length 326 [2025-03-08 22:21:23,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:23,341 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 3747 transitions. [2025-03-08 22:21:23,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 39.583333333333336) internal successors, (475), 12 states have internal predecessors, (475), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 22:21:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 3747 transitions. [2025-03-08 22:21:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2025-03-08 22:21:23,351 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:23,352 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:23,362 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 22:21:23,552 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,SelfDestructingSolverStorable11 [2025-03-08 22:21:23,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:23,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:23,554 INFO L85 PathProgramCache]: Analyzing trace with hash -54520885, now seen corresponding path program 1 times [2025-03-08 22:21:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:23,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425741075] [2025-03-08 22:21:23,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:23,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:23,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 758 statements into 1 equivalence classes. [2025-03-08 22:21:23,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 758 of 758 statements. [2025-03-08 22:21:23,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:23,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 288 proven. 872 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:27,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:27,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425741075] [2025-03-08 22:21:27,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425741075] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:21:27,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663183416] [2025-03-08 22:21:27,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:27,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:21:27,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:21:27,615 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 22:21:27,616 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 22:21:28,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 758 statements into 1 equivalence classes. [2025-03-08 22:21:28,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 758 of 758 statements. [2025-03-08 22:21:28,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:28,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:28,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 3756 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 22:21:28,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:21:28,629 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 15 treesize of output 1 [2025-03-08 22:21:28,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:29,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:29,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:29,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:29,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:21:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 288 proven. 872 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:29,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:21:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 288 proven. 872 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:30,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663183416] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:21:30,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:21:30,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 21 [2025-03-08 22:21:30,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912600524] [2025-03-08 22:21:30,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:21:30,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-08 22:21:30,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:30,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-08 22:21:30,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2025-03-08 22:21:30,163 INFO L87 Difference]: Start difference. First operand 2615 states and 3747 transitions. Second operand has 21 states, 21 states have (on average 64.04761904761905) internal successors, (1345), 21 states have internal predecessors, (1345), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 22:21:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:31,611 INFO L93 Difference]: Finished difference Result 5249 states and 7480 transitions. [2025-03-08 22:21:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-08 22:21:31,611 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 64.04761904761905) internal successors, (1345), 21 states have internal predecessors, (1345), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 758 [2025-03-08 22:21:31,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:31,623 INFO L225 Difference]: With dead ends: 5249 [2025-03-08 22:21:31,623 INFO L226 Difference]: Without dead ends: 5249 [2025-03-08 22:21:31,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1538 GetRequests, 1502 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2025-03-08 22:21:31,625 INFO L435 NwaCegarLoop]: 1259 mSDtfsCounter, 6068 mSDsluCounter, 16795 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 18054 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:31,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6110 Valid, 18054 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 22:21:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2025-03-08 22:21:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 4877. [2025-03-08 22:21:31,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4877 states, 4809 states have (on average 1.4208775213142026) internal successors, (6833), 4818 states have internal predecessors, (6833), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-08 22:21:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 6951 transitions. [2025-03-08 22:21:31,722 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 6951 transitions. Word has length 758 [2025-03-08 22:21:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:31,723 INFO L471 AbstractCegarLoop]: Abstraction has 4877 states and 6951 transitions. [2025-03-08 22:21:31,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 64.04761904761905) internal successors, (1345), 21 states have internal predecessors, (1345), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 22:21:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 6951 transitions. [2025-03-08 22:21:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1623 [2025-03-08 22:21:31,757 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:31,757 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:31,775 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 22:21:31,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:21:31,959 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:31,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 96119381, now seen corresponding path program 2 times [2025-03-08 22:21:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:31,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781798434] [2025-03-08 22:21:31,960 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:21:31,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:32,327 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1622 statements into 2 equivalence classes. [2025-03-08 22:21:32,343 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 77 of 1622 statements. [2025-03-08 22:21:32,343 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:21:32,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7238 trivial. 0 not checked. [2025-03-08 22:21:32,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:32,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781798434] [2025-03-08 22:21:32,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781798434] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:32,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:32,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 22:21:32,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980260894] [2025-03-08 22:21:32,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:32,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:21:32,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:32,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:21:32,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:21:32,538 INFO L87 Difference]: Start difference. First operand 4877 states and 6951 transitions. Second operand has 8 states, 8 states have (on average 29.75) internal successors, (238), 8 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:33,568 INFO L93 Difference]: Finished difference Result 4892 states and 6967 transitions. [2025-03-08 22:21:33,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:21:33,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.75) internal successors, (238), 8 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1622 [2025-03-08 22:21:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:33,580 INFO L225 Difference]: With dead ends: 4892 [2025-03-08 22:21:33,581 INFO L226 Difference]: Without dead ends: 4892 [2025-03-08 22:21:33,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:21:33,581 INFO L435 NwaCegarLoop]: 1279 mSDtfsCounter, 51 mSDsluCounter, 7261 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 8540 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:33,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 8540 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 22:21:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4892 states. [2025-03-08 22:21:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4892 to 4888. [2025-03-08 22:21:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4888 states, 4820 states have (on average 1.4199170124481328) internal successors, (6844), 4829 states have internal predecessors, (6844), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-08 22:21:33,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4888 states to 4888 states and 6962 transitions. [2025-03-08 22:21:33,640 INFO L78 Accepts]: Start accepts. Automaton has 4888 states and 6962 transitions. Word has length 1622 [2025-03-08 22:21:33,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:33,642 INFO L471 AbstractCegarLoop]: Abstraction has 4888 states and 6962 transitions. [2025-03-08 22:21:33,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.75) internal successors, (238), 8 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4888 states and 6962 transitions. [2025-03-08 22:21:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1624 [2025-03-08 22:21:33,658 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:33,658 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:33,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 22:21:33,659 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:33,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash 677849910, now seen corresponding path program 1 times [2025-03-08 22:21:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:33,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728255212] [2025-03-08 22:21:33,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:34,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1623 statements into 1 equivalence classes. [2025-03-08 22:21:34,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1623 of 1623 statements. [2025-03-08 22:21:34,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:34,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7238 trivial. 0 not checked. [2025-03-08 22:21:38,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:38,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728255212] [2025-03-08 22:21:38,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728255212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:38,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:38,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 22:21:38,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344801254] [2025-03-08 22:21:38,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:38,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 22:21:38,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:38,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 22:21:38,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:21:38,075 INFO L87 Difference]: Start difference. First operand 4888 states and 6962 transitions. Second operand has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:38,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:38,596 INFO L93 Difference]: Finished difference Result 4893 states and 6968 transitions. [2025-03-08 22:21:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 22:21:38,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1623 [2025-03-08 22:21:38,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:38,608 INFO L225 Difference]: With dead ends: 4893 [2025-03-08 22:21:38,609 INFO L226 Difference]: Without dead ends: 4893 [2025-03-08 22:21:38,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:21:38,609 INFO L435 NwaCegarLoop]: 1285 mSDtfsCounter, 20 mSDsluCounter, 6056 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 7341 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:38,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 7341 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 22:21:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2025-03-08 22:21:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4892. [2025-03-08 22:21:38,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4892 states, 4824 states have (on average 1.419776119402985) internal successors, (6849), 4833 states have internal predecessors, (6849), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-08 22:21:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4892 states to 4892 states and 6967 transitions. [2025-03-08 22:21:38,655 INFO L78 Accepts]: Start accepts. Automaton has 4892 states and 6967 transitions. Word has length 1623 [2025-03-08 22:21:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:38,656 INFO L471 AbstractCegarLoop]: Abstraction has 4892 states and 6967 transitions. [2025-03-08 22:21:38,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4892 states and 6967 transitions. [2025-03-08 22:21:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1624 [2025-03-08 22:21:38,672 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:38,672 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:38,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 22:21:38,673 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:38,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash -964589283, now seen corresponding path program 1 times [2025-03-08 22:21:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243746127] [2025-03-08 22:21:38,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:38,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:39,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1623 statements into 1 equivalence classes. [2025-03-08 22:21:39,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1623 of 1623 statements. [2025-03-08 22:21:39,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:39,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7238 trivial. 0 not checked. [2025-03-08 22:21:42,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243746127] [2025-03-08 22:21:42,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243746127] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:42,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 22:21:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902335486] [2025-03-08 22:21:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:42,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:21:42,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:42,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:21:42,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:21:42,166 INFO L87 Difference]: Start difference. First operand 4892 states and 6967 transitions. Second operand has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:42,596 INFO L93 Difference]: Finished difference Result 4900 states and 6977 transitions. [2025-03-08 22:21:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:21:42,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1623 [2025-03-08 22:21:42,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:42,605 INFO L225 Difference]: With dead ends: 4900 [2025-03-08 22:21:42,605 INFO L226 Difference]: Without dead ends: 4900 [2025-03-08 22:21:42,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:21:42,607 INFO L435 NwaCegarLoop]: 1279 mSDtfsCounter, 25 mSDsluCounter, 6104 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 7383 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:42,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 7383 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:21:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4900 states. [2025-03-08 22:21:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4900 to 4892. [2025-03-08 22:21:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4892 states, 4824 states have (on average 1.419776119402985) internal successors, (6849), 4833 states have internal predecessors, (6849), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-08 22:21:42,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4892 states to 4892 states and 6967 transitions. [2025-03-08 22:21:42,654 INFO L78 Accepts]: Start accepts. Automaton has 4892 states and 6967 transitions. Word has length 1623 [2025-03-08 22:21:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:42,655 INFO L471 AbstractCegarLoop]: Abstraction has 4892 states and 6967 transitions. [2025-03-08 22:21:42,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:42,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4892 states and 6967 transitions. [2025-03-08 22:21:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1625 [2025-03-08 22:21:42,672 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:42,672 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:42,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 22:21:42,672 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:42,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:42,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2139347602, now seen corresponding path program 1 times [2025-03-08 22:21:42,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:42,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198932111] [2025-03-08 22:21:42,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:43,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1624 statements into 1 equivalence classes. [2025-03-08 22:21:43,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1624 of 1624 statements. [2025-03-08 22:21:43,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:43,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7238 trivial. 0 not checked. [2025-03-08 22:21:46,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:46,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198932111] [2025-03-08 22:21:46,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198932111] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:46,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:46,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 22:21:46,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495941721] [2025-03-08 22:21:46,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:46,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 22:21:46,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:46,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 22:21:46,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:21:46,296 INFO L87 Difference]: Start difference. First operand 4892 states and 6967 transitions. Second operand has 9 states, 9 states have (on average 26.666666666666668) internal successors, (240), 9 states have internal predecessors, (240), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:46,910 INFO L93 Difference]: Finished difference Result 4903 states and 6981 transitions. [2025-03-08 22:21:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:21:46,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 26.666666666666668) internal successors, (240), 9 states have internal predecessors, (240), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1624 [2025-03-08 22:21:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:46,918 INFO L225 Difference]: With dead ends: 4903 [2025-03-08 22:21:46,918 INFO L226 Difference]: Without dead ends: 4903 [2025-03-08 22:21:46,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:21:46,919 INFO L435 NwaCegarLoop]: 1279 mSDtfsCounter, 31 mSDsluCounter, 8583 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:46,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 9862 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 22:21:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2025-03-08 22:21:46,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4900. [2025-03-08 22:21:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 4832 states have (on average 1.4194950331125828) internal successors, (6859), 4841 states have internal predecessors, (6859), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-08 22:21:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 6977 transitions. [2025-03-08 22:21:46,958 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 6977 transitions. Word has length 1624 [2025-03-08 22:21:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:46,959 INFO L471 AbstractCegarLoop]: Abstraction has 4900 states and 6977 transitions. [2025-03-08 22:21:46,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.666666666666668) internal successors, (240), 9 states have internal predecessors, (240), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 6977 transitions. [2025-03-08 22:21:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1626 [2025-03-08 22:21:46,973 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:46,974 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:46,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 22:21:46,974 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:46,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash -140776487, now seen corresponding path program 1 times [2025-03-08 22:21:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979013053] [2025-03-08 22:21:46,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:47,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1625 statements into 1 equivalence classes. [2025-03-08 22:21:48,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1625 of 1625 statements. [2025-03-08 22:21:48,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:48,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7238 trivial. 0 not checked. [2025-03-08 22:21:50,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:50,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979013053] [2025-03-08 22:21:50,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979013053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:21:50,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:21:50,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 22:21:50,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199299607] [2025-03-08 22:21:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:21:50,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 22:21:50,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:21:50,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 22:21:50,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:21:50,703 INFO L87 Difference]: Start difference. First operand 4900 states and 6977 transitions. Second operand has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 7 states have internal predecessors, (241), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:21:51,086 INFO L93 Difference]: Finished difference Result 4903 states and 6980 transitions. [2025-03-08 22:21:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 22:21:51,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 7 states have internal predecessors, (241), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1625 [2025-03-08 22:21:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:21:51,093 INFO L225 Difference]: With dead ends: 4903 [2025-03-08 22:21:51,093 INFO L226 Difference]: Without dead ends: 4903 [2025-03-08 22:21:51,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:21:51,094 INFO L435 NwaCegarLoop]: 1288 mSDtfsCounter, 16 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:21:51,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4974 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:21:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2025-03-08 22:21:51,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4903. [2025-03-08 22:21:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4903 states, 4835 states have (on average 1.41923474663909) internal successors, (6862), 4844 states have internal predecessors, (6862), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2025-03-08 22:21:51,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4903 states to 4903 states and 6980 transitions. [2025-03-08 22:21:51,135 INFO L78 Accepts]: Start accepts. Automaton has 4903 states and 6980 transitions. Word has length 1625 [2025-03-08 22:21:51,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:21:51,136 INFO L471 AbstractCegarLoop]: Abstraction has 4903 states and 6980 transitions. [2025-03-08 22:21:51,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 7 states have internal predecessors, (241), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:21:51,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4903 states and 6980 transitions. [2025-03-08 22:21:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1626 [2025-03-08 22:21:51,186 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:21:51,187 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:21:51,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 22:21:51,187 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:21:51,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:21:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2029714879, now seen corresponding path program 1 times [2025-03-08 22:21:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:21:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979434474] [2025-03-08 22:21:51,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:21:51,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1625 statements into 1 equivalence classes. [2025-03-08 22:21:51,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1625 of 1625 statements. [2025-03-08 22:21:51,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:51,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 1961 proven. 74 refuted. 0 times theorem prover too weak. 5203 trivial. 0 not checked. [2025-03-08 22:21:56,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:21:56,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979434474] [2025-03-08 22:21:56,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979434474] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:21:56,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930609440] [2025-03-08 22:21:56,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:21:56,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:21:56,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:21:56,382 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 22:21:56,383 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 22:21:57,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1625 statements into 1 equivalence classes. [2025-03-08 22:21:58,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1625 of 1625 statements. [2025-03-08 22:21:58,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:21:58,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:21:58,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 7986 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-08 22:21:58,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:21:58,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:58,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:58,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:21:59,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:21:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 42 proven. 7172 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:21:59,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:22:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7238 backedges. 42 proven. 7172 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:22:01,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930609440] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:22:01,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:22:01,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 16] total 34 [2025-03-08 22:22:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684991752] [2025-03-08 22:22:01,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:22:01,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-08 22:22:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:22:01,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-08 22:22:01,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=735, Unknown=0, NotChecked=0, Total=1122 [2025-03-08 22:22:01,472 INFO L87 Difference]: Start difference. First operand 4903 states and 6980 transitions. Second operand has 34 states, 34 states have (on average 97.1470588235294) internal successors, (3303), 34 states have internal predecessors, (3303), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 22:22:07,738 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 22:22:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:22:08,040 INFO L93 Difference]: Finished difference Result 9284 states and 13142 transitions. [2025-03-08 22:22:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2025-03-08 22:22:08,041 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 97.1470588235294) internal successors, (3303), 34 states have internal predecessors, (3303), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1625 [2025-03-08 22:22:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:22:08,055 INFO L225 Difference]: With dead ends: 9284 [2025-03-08 22:22:08,056 INFO L226 Difference]: Without dead ends: 9284 [2025-03-08 22:22:08,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3305 GetRequests, 3219 SyntacticMatches, 7 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1731, Invalid=4749, Unknown=0, NotChecked=0, Total=6480 [2025-03-08 22:22:08,057 INFO L435 NwaCegarLoop]: 1226 mSDtfsCounter, 13102 mSDsluCounter, 13093 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13174 SdHoareTripleChecker+Valid, 14319 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:22:08,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13174 Valid, 14319 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2133 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2025-03-08 22:22:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9284 states. [2025-03-08 22:22:08,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9284 to 9281. [2025-03-08 22:22:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9281 states, 9147 states have (on average 1.4092052038919864) internal successors, (12890), 9156 states have internal predecessors, (12890), 125 states have call successors, (125), 7 states have call predecessors, (125), 7 states have return successors, (125), 119 states have call predecessors, (125), 125 states have call successors, (125) [2025-03-08 22:22:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9281 states to 9281 states and 13140 transitions. [2025-03-08 22:22:08,131 INFO L78 Accepts]: Start accepts. Automaton has 9281 states and 13140 transitions. Word has length 1625 [2025-03-08 22:22:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:22:08,132 INFO L471 AbstractCegarLoop]: Abstraction has 9281 states and 13140 transitions. [2025-03-08 22:22:08,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 97.1470588235294) internal successors, (3303), 34 states have internal predecessors, (3303), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 22:22:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 9281 states and 13140 transitions. [2025-03-08 22:22:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3276 [2025-03-08 22:22:08,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:22:08,178 INFO L218 NwaCegarLoop]: trace histogram [34, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:22:08,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 22:22:08,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:22:08,380 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:22:08,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:22:08,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1234236927, now seen corresponding path program 2 times [2025-03-08 22:22:08,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:22:08,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773778507] [2025-03-08 22:22:08,381 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:22:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:22:09,002 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3275 statements into 2 equivalence classes. [2025-03-08 22:22:09,027 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 80 of 3275 statements. [2025-03-08 22:22:09,027 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:22:09,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:22:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 42713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42713 trivial. 0 not checked. [2025-03-08 22:22:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:22:09,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773778507] [2025-03-08 22:22:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773778507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:22:09,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:22:09,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-08 22:22:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531584001] [2025-03-08 22:22:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:22:09,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-08 22:22:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:22:09,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-08 22:22:09,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-08 22:22:09,302 INFO L87 Difference]: Start difference. First operand 9281 states and 13140 transitions. Second operand has 13 states, 13 states have (on average 18.53846153846154) internal successors, (241), 13 states have internal predecessors, (241), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:22:10,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:22:10,391 INFO L93 Difference]: Finished difference Result 9326 states and 13204 transitions. [2025-03-08 22:22:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-08 22:22:10,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.53846153846154) internal successors, (241), 13 states have internal predecessors, (241), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 3275 [2025-03-08 22:22:10,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:22:10,402 INFO L225 Difference]: With dead ends: 9326 [2025-03-08 22:22:10,402 INFO L226 Difference]: Without dead ends: 9326 [2025-03-08 22:22:10,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-03-08 22:22:10,403 INFO L435 NwaCegarLoop]: 1286 mSDtfsCounter, 102 mSDsluCounter, 12448 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 13734 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 22:22:10,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 13734 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 22:22:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9326 states. [2025-03-08 22:22:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9326 to 9287. [2025-03-08 22:22:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9287 states, 9153 states have (on average 1.4091554681525182) internal successors, (12898), 9162 states have internal predecessors, (12898), 125 states have call successors, (125), 7 states have call predecessors, (125), 7 states have return successors, (125), 119 states have call predecessors, (125), 125 states have call successors, (125) [2025-03-08 22:22:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9287 states to 9287 states and 13148 transitions. [2025-03-08 22:22:10,477 INFO L78 Accepts]: Start accepts. Automaton has 9287 states and 13148 transitions. Word has length 3275 [2025-03-08 22:22:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:22:10,479 INFO L471 AbstractCegarLoop]: Abstraction has 9287 states and 13148 transitions. [2025-03-08 22:22:10,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.53846153846154) internal successors, (241), 13 states have internal predecessors, (241), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:22:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9287 states and 13148 transitions. [2025-03-08 22:22:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3277 [2025-03-08 22:22:10,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:22:10,524 INFO L218 NwaCegarLoop]: trace histogram [34, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:22:10,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 22:22:10,524 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:22:10,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:22:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 636742430, now seen corresponding path program 1 times [2025-03-08 22:22:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:22:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191534915] [2025-03-08 22:22:10,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:22:10,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:22:11,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3276 statements into 1 equivalence classes. [2025-03-08 22:22:12,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3276 of 3276 statements. [2025-03-08 22:22:12,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:22:12,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat