./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.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_OAT_test9-1.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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:29:32,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:29:32,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:29:32,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:29:32,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:29:32,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:29:32,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:29:32,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:29:32,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:29:32,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:29:32,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:29:32,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:29:32,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:29:32,158 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:29:32,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:29:32,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:29:32,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:29:32,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:29:32,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:29:32,159 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 -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2025-03-08 22:29:32,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:29:32,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:29:32,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:29:32,388 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:29:32,388 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:29:32,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2025-03-08 22:29:33,477 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/736f9ff1b/a1666207d69d453d8e7262e797e9a511/FLAG70e6eb710 [2025-03-08 22:29:33,800 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:29:33,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2025-03-08 22:29:33,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/736f9ff1b/a1666207d69d453d8e7262e797e9a511/FLAG70e6eb710 [2025-03-08 22:29:34,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/736f9ff1b/a1666207d69d453d8e7262e797e9a511 [2025-03-08 22:29:34,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:29:34,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:29:34,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:29:34,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:29:34,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:29:34,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b88f9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34, skipping insertion in model container [2025-03-08 22:29:34,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:29:34,514 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 22:29:34,532 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 22:29:34,535 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 22:29:34,537 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 22:29:34,544 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 22:29:34,570 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 22:29:34,570 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 22:29:34,572 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 22:29:34,572 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 22:29:34,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:29:34,589 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:29:34,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:29:34,735 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:29:34,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34 WrapperNode [2025-03-08 22:29:34,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:29:34,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:29:34,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:29:34,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:29:34,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,825 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3244 [2025-03-08 22:29:34,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:29:34,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:29:34,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:29:34,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:29:34,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,914 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2025-03-08 22:29:34,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,950 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:29:34,976 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:29:34,976 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:29:34,976 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:29:34,977 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (1/1) ... [2025-03-08 22:29:34,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:29:34,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:29:35,003 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 22:29:35,008 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 22:29:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-08 22:29:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-08 22:29:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 22:29:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 22:29:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 22:29:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:29:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:29:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 22:29:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 22:29:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 22:29:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:29:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:29:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 22:29:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:29:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:29:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 22:29:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:29:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:29:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 22:29:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 22:29:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 22:29:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:29:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:29:35,182 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:29:35,183 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:29:37,372 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: 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 22:29:37,569 INFO L? ?]: Removed 799 outVars from TransFormulas that were not future-live. [2025-03-08 22:29:37,569 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:29:37,635 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:29:37,635 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-08 22:29:37,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:29:37 BoogieIcfgContainer [2025-03-08 22:29:37,636 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:29:37,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:29:37,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:29:37,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:29:37,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:29:34" (1/3) ... [2025-03-08 22:29:37,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2913268a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:29:37, skipping insertion in model container [2025-03-08 22:29:37,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:29:34" (2/3) ... [2025-03-08 22:29:37,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2913268a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:29:37, skipping insertion in model container [2025-03-08 22:29:37,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:29:37" (3/3) ... [2025-03-08 22:29:37,644 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-1.i [2025-03-08 22:29:37,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:29:37,658 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test9-1.i that has 6 procedures, 1378 locations, 1 initial locations, 31 loop locations, and 2 error locations. [2025-03-08 22:29:37,723 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:29:37,733 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;@76dc0c02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:29:37,734 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:29:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 1370 states, 859 states have (on average 1.839348079161816) internal successors, (1580), 1363 states have internal predecessors, (1580), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2025-03-08 22:29:37,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 22:29:37,746 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:37,746 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:29:37,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:37,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:37,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1249373015, now seen corresponding path program 1 times [2025-03-08 22:29:37,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:37,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622439853] [2025-03-08 22:29:37,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:37,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:37,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 22:29:37,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 22:29:37,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:37,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:37,858 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 22:29:37,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:37,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622439853] [2025-03-08 22:29:37,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622439853] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:37,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:37,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:29:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144328354] [2025-03-08 22:29:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:37,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:29:37,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:37,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:29:37,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:29:37,882 INFO L87 Difference]: Start difference. First operand has 1370 states, 859 states have (on average 1.839348079161816) internal successors, (1580), 1363 states have internal predecessors, (1580), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:38,037 INFO L93 Difference]: Finished difference Result 1368 states and 2531 transitions. [2025-03-08 22:29:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:29:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-08 22:29:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:38,060 INFO L225 Difference]: With dead ends: 1368 [2025-03-08 22:29:38,061 INFO L226 Difference]: Without dead ends: 1366 [2025-03-08 22:29:38,062 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 22:29:38,065 INFO L435 NwaCegarLoop]: 2490 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:38,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2490 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:29:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2025-03-08 22:29:38,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2025-03-08 22:29:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 857 states have (on average 1.7747957992998833) internal successors, (1521), 1359 states have internal predecessors, (1521), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:29:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2529 transitions. [2025-03-08 22:29:38,344 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2529 transitions. Word has length 7 [2025-03-08 22:29:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:38,345 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2529 transitions. [2025-03-08 22:29:38,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2529 transitions. [2025-03-08 22:29:38,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-08 22:29:38,345 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:38,345 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:29:38,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:29:38,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:38,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:38,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2072331228, now seen corresponding path program 1 times [2025-03-08 22:29:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:38,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976542567] [2025-03-08 22:29:38,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:38,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-08 22:29:38,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-08 22:29:38,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:38,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:38,495 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 22:29:38,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:38,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976542567] [2025-03-08 22:29:38,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976542567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:38,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:38,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:29:38,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914430150] [2025-03-08 22:29:38,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:38,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:29:38,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:38,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:29:38,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:29:38,497 INFO L87 Difference]: Start difference. First operand 1366 states and 2529 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:39,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:39,238 INFO L93 Difference]: Finished difference Result 2715 states and 5042 transitions. [2025-03-08 22:29:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:29:39,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-08 22:29:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:39,257 INFO L225 Difference]: With dead ends: 2715 [2025-03-08 22:29:39,257 INFO L226 Difference]: Without dead ends: 2715 [2025-03-08 22:29:39,257 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 22:29:39,259 INFO L435 NwaCegarLoop]: 2533 mSDtfsCounter, 1503 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 7027 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:39,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 7027 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 22:29:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2025-03-08 22:29:39,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1368. [2025-03-08 22:29:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 859 states have (on average 1.7729918509895226) internal successors, (1523), 1361 states have internal predecessors, (1523), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:29:39,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2531 transitions. [2025-03-08 22:29:39,575 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2531 transitions. Word has length 9 [2025-03-08 22:29:39,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:39,575 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 2531 transitions. [2025-03-08 22:29:39,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:39,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2531 transitions. [2025-03-08 22:29:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:29:39,577 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:39,577 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] [2025-03-08 22:29:39,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:29:39,577 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:39,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash -231763017, now seen corresponding path program 1 times [2025-03-08 22:29:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:39,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146302454] [2025-03-08 22:29:39,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:39,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:39,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:29:39,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:29:39,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:39,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:39,914 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 22:29:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:39,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146302454] [2025-03-08 22:29:39,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146302454] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:39,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:29:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248156643] [2025-03-08 22:29:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:39,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:29:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:39,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:29:39,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:29:39,917 INFO L87 Difference]: Start difference. First operand 1368 states and 2531 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:40,057 INFO L93 Difference]: Finished difference Result 1326 states and 2454 transitions. [2025-03-08 22:29:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:29:40,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-03-08 22:29:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:40,064 INFO L225 Difference]: With dead ends: 1326 [2025-03-08 22:29:40,064 INFO L226 Difference]: Without dead ends: 1326 [2025-03-08 22:29:40,064 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 22:29:40,065 INFO L435 NwaCegarLoop]: 2396 mSDtfsCounter, 30 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:40,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7169 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:29:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2025-03-08 22:29:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2025-03-08 22:29:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 817 states have (on average 1.7698898408812729) internal successors, (1446), 1319 states have internal predecessors, (1446), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:29:40,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 2454 transitions. [2025-03-08 22:29:40,143 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 2454 transitions. Word has length 83 [2025-03-08 22:29:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:40,143 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 2454 transitions. [2025-03-08 22:29:40,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 2454 transitions. [2025-03-08 22:29:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:29:40,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:40,145 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] [2025-03-08 22:29:40,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:29:40,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:40,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:40,146 INFO L85 PathProgramCache]: Analyzing trace with hash -519529904, now seen corresponding path program 1 times [2025-03-08 22:29:40,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:40,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632434577] [2025-03-08 22:29:40,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:40,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:40,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:29:40,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:29:40,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:40,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:40,337 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 22:29:40,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:40,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632434577] [2025-03-08 22:29:40,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632434577] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:40,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:40,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:29:40,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845638119] [2025-03-08 22:29:40,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:40,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:29:40,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:40,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:29:40,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:29:40,339 INFO L87 Difference]: Start difference. First operand 1326 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:40,476 INFO L93 Difference]: Finished difference Result 2549 states and 4775 transitions. [2025-03-08 22:29:40,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:29:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-03-08 22:29:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:40,489 INFO L225 Difference]: With dead ends: 2549 [2025-03-08 22:29:40,489 INFO L226 Difference]: Without dead ends: 2549 [2025-03-08 22:29:40,489 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 22:29:40,491 INFO L435 NwaCegarLoop]: 2599 mSDtfsCounter, 1261 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:40,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 4999 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:29:40,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2025-03-08 22:29:40,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2545. [2025-03-08 22:29:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 1536 states have (on average 1.7994791666666667) internal successors, (2764), 2538 states have internal predecessors, (2764), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:29:40,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4772 transitions. [2025-03-08 22:29:40,645 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4772 transitions. Word has length 83 [2025-03-08 22:29:40,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:40,646 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 4772 transitions. [2025-03-08 22:29:40,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:29:40,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4772 transitions. [2025-03-08 22:29:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-08 22:29:40,648 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:40,648 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] [2025-03-08 22:29:40,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:29:40,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:40,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:40,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1525258849, now seen corresponding path program 1 times [2025-03-08 22:29:40,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:40,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596085120] [2025-03-08 22:29:40,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:40,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:40,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:29:40,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:29:40,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:40,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:29:41,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:41,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596085120] [2025-03-08 22:29:41,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596085120] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:41,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:41,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:29:41,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908548570] [2025-03-08 22:29:41,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:41,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:29:41,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:41,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:29:41,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:29:41,060 INFO L87 Difference]: Start difference. First operand 2545 states and 4772 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:41,696 INFO L93 Difference]: Finished difference Result 4769 states and 9093 transitions. [2025-03-08 22:29:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:29:41,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2025-03-08 22:29:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:41,717 INFO L225 Difference]: With dead ends: 4769 [2025-03-08 22:29:41,717 INFO L226 Difference]: Without dead ends: 4769 [2025-03-08 22:29:41,718 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 22:29:41,718 INFO L435 NwaCegarLoop]: 2486 mSDtfsCounter, 1416 mSDsluCounter, 4373 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:41,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 6859 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 22:29:41,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2025-03-08 22:29:41,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 2547. [2025-03-08 22:29:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 1538 states have (on average 1.7984395318595578) internal successors, (2766), 2540 states have internal predecessors, (2766), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:29:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 4774 transitions. [2025-03-08 22:29:41,997 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 4774 transitions. Word has length 98 [2025-03-08 22:29:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:41,997 INFO L471 AbstractCegarLoop]: Abstraction has 2547 states and 4774 transitions. [2025-03-08 22:29:41,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 4774 transitions. [2025-03-08 22:29:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:29:41,999 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:41,999 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] [2025-03-08 22:29:41,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:29:41,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:42,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:42,000 INFO L85 PathProgramCache]: Analyzing trace with hash -890756347, now seen corresponding path program 1 times [2025-03-08 22:29:42,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:42,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908680085] [2025-03-08 22:29:42,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:42,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:42,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:29:42,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:29:42,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:42,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:42,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:29:42,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:42,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908680085] [2025-03-08 22:29:42,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908680085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:42,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:42,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:29:42,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89743151] [2025-03-08 22:29:42,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:42,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:29:42,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:42,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:29:42,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:29:42,161 INFO L87 Difference]: Start difference. First operand 2547 states and 4774 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:42,268 INFO L93 Difference]: Finished difference Result 2587 states and 4814 transitions. [2025-03-08 22:29:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:29:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:29:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:42,278 INFO L225 Difference]: With dead ends: 2587 [2025-03-08 22:29:42,279 INFO L226 Difference]: Without dead ends: 2587 [2025-03-08 22:29:42,279 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 22:29:42,279 INFO L435 NwaCegarLoop]: 2394 mSDtfsCounter, 8 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:42,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4773 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:29:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2025-03-08 22:29:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2587. [2025-03-08 22:29:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1578 states have (on average 1.7782002534854247) internal successors, (2806), 2580 states have internal predecessors, (2806), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:29:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 4814 transitions. [2025-03-08 22:29:42,472 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 4814 transitions. Word has length 153 [2025-03-08 22:29:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:42,473 INFO L471 AbstractCegarLoop]: Abstraction has 2587 states and 4814 transitions. [2025-03-08 22:29:42,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 4814 transitions. [2025-03-08 22:29:42,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:29:42,474 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:42,475 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] [2025-03-08 22:29:42,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:29:42,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:42,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash 292590950, now seen corresponding path program 1 times [2025-03-08 22:29:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215390188] [2025-03-08 22:29:42,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:42,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:29:42,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:29:42,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:42,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:29:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215390188] [2025-03-08 22:29:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215390188] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:42,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:42,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:29:42,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122080057] [2025-03-08 22:29:42,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:42,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:29:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:42,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:29:42,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:29:42,712 INFO L87 Difference]: Start difference. First operand 2587 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:42,836 INFO L93 Difference]: Finished difference Result 2463 states and 4614 transitions. [2025-03-08 22:29:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:29:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:29:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:42,847 INFO L225 Difference]: With dead ends: 2463 [2025-03-08 22:29:42,847 INFO L226 Difference]: Without dead ends: 2463 [2025-03-08 22:29:42,847 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 22:29:42,848 INFO L435 NwaCegarLoop]: 2319 mSDtfsCounter, 32 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6943 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:42,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6943 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:29:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2025-03-08 22:29:43,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2463. [2025-03-08 22:29:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 1454 states have (on average 1.7922971114167814) internal successors, (2606), 2456 states have internal predecessors, (2606), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:29:43,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 4614 transitions. [2025-03-08 22:29:43,078 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 4614 transitions. Word has length 153 [2025-03-08 22:29:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:43,078 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 4614 transitions. [2025-03-08 22:29:43,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 4614 transitions. [2025-03-08 22:29:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:29:43,081 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:43,081 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] [2025-03-08 22:29:43,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:29:43,081 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:43,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash 144843391, now seen corresponding path program 1 times [2025-03-08 22:29:43,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:43,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411682281] [2025-03-08 22:29:43,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:43,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:43,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:29:43,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:29:43,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:43,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:43,281 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 22:29:43,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:43,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411682281] [2025-03-08 22:29:43,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411682281] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:29:43,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:29:43,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:29:43,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867654918] [2025-03-08 22:29:43,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:29:43,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:29:43,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:43,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:29:43,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:29:43,300 INFO L87 Difference]: Start difference. First operand 2463 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:44,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:44,632 INFO L93 Difference]: Finished difference Result 2545 states and 4720 transitions. [2025-03-08 22:29:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:29:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:29:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:44,646 INFO L225 Difference]: With dead ends: 2545 [2025-03-08 22:29:44,647 INFO L226 Difference]: Without dead ends: 2545 [2025-03-08 22:29:44,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:29:44,648 INFO L435 NwaCegarLoop]: 2474 mSDtfsCounter, 3767 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4268 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:44,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4268 Valid, 5503 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 22:29:44,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2025-03-08 22:29:44,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1371. [2025-03-08 22:29:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 862 states have (on average 1.7192575406032482) internal successors, (1482), 1364 states have internal predecessors, (1482), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:29:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2490 transitions. [2025-03-08 22:29:44,797 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2490 transitions. Word has length 153 [2025-03-08 22:29:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:44,798 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2490 transitions. [2025-03-08 22:29:44,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:29:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2490 transitions. [2025-03-08 22:29:44,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-08 22:29:44,801 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:44,801 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] [2025-03-08 22:29:44,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:29:44,801 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:44,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:44,802 INFO L85 PathProgramCache]: Analyzing trace with hash -797279119, now seen corresponding path program 1 times [2025-03-08 22:29:44,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:44,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636903530] [2025-03-08 22:29:44,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:44,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:44,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:29:44,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:29:44,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:44,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:29:45,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:45,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636903530] [2025-03-08 22:29:45,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636903530] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:29:45,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845865877] [2025-03-08 22:29:45,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:45,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:29:45,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:29:45,295 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 22:29:45,297 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 22:29:45,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:29:45,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:29:45,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:45,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:45,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:29:45,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:29:45,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-08 22:29:45,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:29:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:29:45,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:29:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:29:45,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845865877] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:29:45,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:29:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 12 [2025-03-08 22:29:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908526932] [2025-03-08 22:29:45,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:29:45,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 22:29:45,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:45,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 22:29:45,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:29:45,928 INFO L87 Difference]: Start difference. First operand 1371 states and 2490 transitions. Second operand has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 states have internal predecessors, (320), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:29:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:29:50,317 INFO L93 Difference]: Finished difference Result 4085 states and 7443 transitions. [2025-03-08 22:29:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 22:29:50,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 states have internal predecessors, (320), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 163 [2025-03-08 22:29:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:29:50,327 INFO L225 Difference]: With dead ends: 4085 [2025-03-08 22:29:50,327 INFO L226 Difference]: Without dead ends: 4085 [2025-03-08 22:29:50,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-03-08 22:29:50,328 INFO L435 NwaCegarLoop]: 1988 mSDtfsCounter, 9908 mSDsluCounter, 10131 mSDsCounter, 0 mSdLazyCounter, 4359 mSolverCounterSat, 2515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10912 SdHoareTripleChecker+Valid, 12119 SdHoareTripleChecker+Invalid, 6874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2515 IncrementalHoareTripleChecker+Valid, 4359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:29:50,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10912 Valid, 12119 Invalid, 6874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2515 Valid, 4359 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-03-08 22:29:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2025-03-08 22:29:50,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 1711. [2025-03-08 22:29:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1198 states have (on average 1.6126878130217028) internal successors, (1932), 1700 states have internal predecessors, (1932), 508 states have call successors, (508), 4 states have call predecessors, (508), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2025-03-08 22:29:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2946 transitions. [2025-03-08 22:29:50,572 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2946 transitions. Word has length 163 [2025-03-08 22:29:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:29:50,572 INFO L471 AbstractCegarLoop]: Abstraction has 1711 states and 2946 transitions. [2025-03-08 22:29:50,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 states have internal predecessors, (320), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:29:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2946 transitions. [2025-03-08 22:29:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2025-03-08 22:29:50,576 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:29:50,576 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:29:50,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:29:50,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:29:50,777 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:29:50,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:29:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1687494229, now seen corresponding path program 1 times [2025-03-08 22:29:50,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:29:50,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290710974] [2025-03-08 22:29:50,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:50,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:29:50,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:29:50,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:29:50,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:50,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:53,332 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:29:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:29:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290710974] [2025-03-08 22:29:53,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290710974] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:29:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534556824] [2025-03-08 22:29:53,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:29:53,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:29:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:29:53,336 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 22:29:53,338 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 22:29:53,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:29:53,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:29:53,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:29:53,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:29:53,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 22:29:53,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:29:53,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-08 22:29:54,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:29:54,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:29:54,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:29:54,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:29:54,312 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:29:54,312 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:29:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:29:54,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534556824] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:29:54,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:29:54,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 8] total 23 [2025-03-08 22:29:54,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926844526] [2025-03-08 22:29:54,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:29:54,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-08 22:29:54,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:29:54,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-08 22:29:54,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2025-03-08 22:29:54,750 INFO L87 Difference]: Start difference. First operand 1711 states and 2946 transitions. Second operand has 23 states, 23 states have (on average 42.869565217391305) internal successors, (986), 23 states have internal predecessors, (986), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:30:05,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:30:05,238 INFO L93 Difference]: Finished difference Result 9391 states and 17195 transitions. [2025-03-08 22:30:05,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-08 22:30:05,238 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 42.869565217391305) internal successors, (986), 23 states have internal predecessors, (986), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 385 [2025-03-08 22:30:05,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:30:05,255 INFO L225 Difference]: With dead ends: 9391 [2025-03-08 22:30:05,255 INFO L226 Difference]: Without dead ends: 9391 [2025-03-08 22:30:05,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 758 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2025-03-08 22:30:05,256 INFO L435 NwaCegarLoop]: 6752 mSDtfsCounter, 20348 mSDsluCounter, 36326 mSDsCounter, 0 mSdLazyCounter, 16036 mSolverCounterSat, 3265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23358 SdHoareTripleChecker+Valid, 43078 SdHoareTripleChecker+Invalid, 19301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3265 IncrementalHoareTripleChecker+Valid, 16036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2025-03-08 22:30:05,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23358 Valid, 43078 Invalid, 19301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3265 Valid, 16036 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2025-03-08 22:30:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2025-03-08 22:30:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 2557. [2025-03-08 22:30:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2038 states have (on average 1.5014720314033365) internal successors, (3060), 2540 states have internal predecessors, (3060), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:30:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4086 transitions. [2025-03-08 22:30:05,777 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4086 transitions. Word has length 385 [2025-03-08 22:30:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:30:05,778 INFO L471 AbstractCegarLoop]: Abstraction has 2557 states and 4086 transitions. [2025-03-08 22:30:05,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 42.869565217391305) internal successors, (986), 23 states have internal predecessors, (986), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:30:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4086 transitions. [2025-03-08 22:30:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2025-03-08 22:30:05,788 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:30:05,788 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:30:05,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 22:30:05,989 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,SelfDestructingSolverStorable9 [2025-03-08 22:30:05,989 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:30:05,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:30:05,990 INFO L85 PathProgramCache]: Analyzing trace with hash 66997533, now seen corresponding path program 2 times [2025-03-08 22:30:05,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:30:05,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663943847] [2025-03-08 22:30:05,990 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:30:05,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:30:06,210 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 829 statements into 2 equivalence classes. [2025-03-08 22:30:06,246 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 74 of 829 statements. [2025-03-08 22:30:06,250 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:30:06,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:30:06,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:30:06,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:30:06,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663943847] [2025-03-08 22:30:06,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663943847] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:30:06,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:30:06,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:30:06,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952176658] [2025-03-08 22:30:06,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:30:06,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:30:06,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:30:06,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:30:06,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:30:06,402 INFO L87 Difference]: Start difference. First operand 2557 states and 4086 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:30:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:30:06,713 INFO L93 Difference]: Finished difference Result 2597 states and 4141 transitions. [2025-03-08 22:30:06,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:30:06,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 829 [2025-03-08 22:30:06,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:30:06,719 INFO L225 Difference]: With dead ends: 2597 [2025-03-08 22:30:06,719 INFO L226 Difference]: Without dead ends: 2597 [2025-03-08 22:30:06,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:30:06,720 INFO L435 NwaCegarLoop]: 2347 mSDtfsCounter, 80 mSDsluCounter, 9135 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 11482 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:30:06,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 11482 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:30:06,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2025-03-08 22:30:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2559. [2025-03-08 22:30:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 2040 states have (on average 1.5009803921568627) internal successors, (3062), 2542 states have internal predecessors, (3062), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:30:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 4088 transitions. [2025-03-08 22:30:06,806 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 4088 transitions. Word has length 829 [2025-03-08 22:30:06,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:30:06,807 INFO L471 AbstractCegarLoop]: Abstraction has 2559 states and 4088 transitions. [2025-03-08 22:30:06,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:30:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 4088 transitions. [2025-03-08 22:30:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2025-03-08 22:30:06,820 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:30:06,820 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:30:06,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 22:30:06,821 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:30:06,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:30:06,822 INFO L85 PathProgramCache]: Analyzing trace with hash 273020057, now seen corresponding path program 1 times [2025-03-08 22:30:06,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:30:06,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837035038] [2025-03-08 22:30:06,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:30:06,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:30:07,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-03-08 22:30:07,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-03-08 22:30:07,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:30:07,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:30:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:30:09,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:30:09,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837035038] [2025-03-08 22:30:09,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837035038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:30:09,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:30:09,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:30:09,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597342011] [2025-03-08 22:30:09,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:30:09,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:30:09,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:30:09,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:30:09,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:30:09,126 INFO L87 Difference]: Start difference. First operand 2559 states and 4088 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:30:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:30:09,363 INFO L93 Difference]: Finished difference Result 2564 states and 4094 transitions. [2025-03-08 22:30:09,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:30:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 830 [2025-03-08 22:30:09,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:30:09,370 INFO L225 Difference]: With dead ends: 2564 [2025-03-08 22:30:09,370 INFO L226 Difference]: Without dead ends: 2564 [2025-03-08 22:30:09,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:30:09,371 INFO L435 NwaCegarLoop]: 2327 mSDtfsCounter, 14 mSDsluCounter, 9040 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11367 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:30:09,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11367 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:30:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2025-03-08 22:30:09,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2563. [2025-03-08 22:30:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2044 states have (on average 1.5004892367906066) internal successors, (3067), 2546 states have internal predecessors, (3067), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:30:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4093 transitions. [2025-03-08 22:30:09,461 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4093 transitions. Word has length 830 [2025-03-08 22:30:09,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:30:09,461 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4093 transitions. [2025-03-08 22:30:09,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:30:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4093 transitions. [2025-03-08 22:30:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2025-03-08 22:30:09,472 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:30:09,472 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:30:09,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 22:30:09,473 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:30:09,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:30:09,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2067703300, now seen corresponding path program 1 times [2025-03-08 22:30:09,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:30:09,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818658465] [2025-03-08 22:30:09,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:30:09,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:30:09,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 831 statements into 1 equivalence classes. [2025-03-08 22:30:09,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 831 of 831 statements. [2025-03-08 22:30:09,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:30:09,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:30:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:30:11,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:30:11,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818658465] [2025-03-08 22:30:11,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818658465] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:30:11,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:30:11,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 22:30:11,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691286500] [2025-03-08 22:30:11,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:30:11,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 22:30:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:30:11,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 22:30:11,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:30:11,998 INFO L87 Difference]: Start difference. First operand 2563 states and 4093 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:30:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:30:12,396 INFO L93 Difference]: Finished difference Result 2574 states and 4106 transitions. [2025-03-08 22:30:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:30:12,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 831 [2025-03-08 22:30:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:30:12,402 INFO L225 Difference]: With dead ends: 2574 [2025-03-08 22:30:12,402 INFO L226 Difference]: Without dead ends: 2574 [2025-03-08 22:30:12,403 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 22:30:12,403 INFO L435 NwaCegarLoop]: 2328 mSDtfsCounter, 31 mSDsluCounter, 15920 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 18248 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:30:12,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 18248 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:30:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2025-03-08 22:30:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2571. [2025-03-08 22:30:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2052 states have (on average 1.4990253411306043) internal successors, (3076), 2554 states have internal predecessors, (3076), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:30:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4102 transitions. [2025-03-08 22:30:12,488 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4102 transitions. Word has length 831 [2025-03-08 22:30:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:30:12,489 INFO L471 AbstractCegarLoop]: Abstraction has 2571 states and 4102 transitions. [2025-03-08 22:30:12,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:30:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4102 transitions. [2025-03-08 22:30:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2025-03-08 22:30:12,495 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:30:12,496 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:30:12,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 22:30:12,496 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:30:12,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:30:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1107155831, now seen corresponding path program 1 times [2025-03-08 22:30:12,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:30:12,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799658804] [2025-03-08 22:30:12,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:30:12,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:30:12,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:30:12,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:30:12,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:30:12,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:30:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:30:19,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:30:19,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799658804] [2025-03-08 22:30:19,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799658804] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:30:19,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225179801] [2025-03-08 22:30:19,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:30:19,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:30:19,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:30:19,648 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 22:30:19,649 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 22:30:20,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:30:20,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:30:20,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:30:20,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:30:20,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-08 22:30:20,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:30:20,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-08 22:30:20,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:20,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:20,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-03-08 22:30:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:30:21,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:30:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:30:22,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225179801] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:30:22,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:30:22,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 14] total 42 [2025-03-08 22:30:22,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777468349] [2025-03-08 22:30:22,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:30:22,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-03-08 22:30:22,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:30:22,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-03-08 22:30:22,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=1127, Unknown=0, NotChecked=0, Total=1722 [2025-03-08 22:30:22,382 INFO L87 Difference]: Start difference. First operand 2571 states and 4102 transitions. Second operand has 42 states, 42 states have (on average 55.26190476190476) internal successors, (2321), 42 states have internal predecessors, (2321), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)