./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/heap-manipulation/dll_of_dll-2.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 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:54:58,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:54:58,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-16 23:54:58,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:54:58,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:54:58,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:54:58,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:54:58,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:54:58,764 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 23:54:58,764 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 23:54:58,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:54:58,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:54:58,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:54:58,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:54:58,766 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:54:58,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:54:58,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:54:58,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:54:58,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:54:58,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:54:58,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:54:58,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:54:58,772 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-16 23:54:58,772 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-16 23:54:58,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:54:58,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:54:58,773 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 23:54:58,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:54:58,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:54:58,774 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:54:58,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:54:58,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:54:58,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:54:58,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:54:58,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 23:54:58,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:54:58,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:54:58,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:54:58,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:54:58,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:54:58,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:54:58,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:54:58,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:54:58,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:54:58,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:54:58,782 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2024-11-16 23:54:59,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:54:59,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:54:59,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:54:59,107 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:54:59,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:54:59,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-16 23:55:00,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:55:00,765 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:55:00,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2024-11-16 23:55:00,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa069f5cc/3536bdb8342149448666c12dc6160fc1/FLAG94467169b [2024-11-16 23:55:01,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa069f5cc/3536bdb8342149448666c12dc6160fc1 [2024-11-16 23:55:01,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:55:01,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:55:01,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:55:01,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:55:01,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:55:01,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e594064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01, skipping insertion in model container [2024-11-16 23:55:01,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:55:01,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:55:01,571 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:55:01,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:55:01,688 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:55:01,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01 WrapperNode [2024-11-16 23:55:01,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:55:01,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:55:01,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:55:01,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:55:01,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,747 INFO L138 Inliner]: procedures = 140, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 220 [2024-11-16 23:55:01,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:55:01,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:55:01,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:55:01,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:55:01,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,765 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,811 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [2, 6, 40]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 13 writes are split as follows [0, 2, 11]. [2024-11-16 23:55:01,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,831 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:55:01,848 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:55:01,849 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:55:01,849 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:55:01,850 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (1/1) ... [2024-11-16 23:55:01,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:55:01,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:01,883 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) [2024-11-16 23:55:01,885 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 [2024-11-16 23:55:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-16 23:55:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-16 23:55:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2024-11-16 23:55:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2024-11-16 23:55:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:55:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:55:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2024-11-16 23:55:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2024-11-16 23:55:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:55:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 23:55:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 23:55:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 23:55:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-16 23:55:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 23:55:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 23:55:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2024-11-16 23:55:01,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2024-11-16 23:55:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2024-11-16 23:55:01,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2024-11-16 23:55:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 23:55:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 23:55:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 23:55:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:55:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:55:02,122 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:55:02,124 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:55:02,161 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L597: havoc #t~ret12.base, #t~ret12.offset; [2024-11-16 23:55:02,256 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L593: havoc #t~mem11.base, #t~mem11.offset;call ULTIMATE.dealloc(~#dll~0.base, ~#dll~0.offset);havoc ~#dll~0.base, ~#dll~0.offset; [2024-11-16 23:55:02,527 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc dll_create_master_#t~ret21#1.base, dll_create_master_#t~ret21#1.offset; [2024-11-16 23:55:02,552 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-16 23:55:02,552 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:55:02,569 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:55:02,569 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:55:02,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:02 BoogieIcfgContainer [2024-11-16 23:55:02,570 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:55:02,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:55:02,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:55:02,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:55:02,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:55:01" (1/3) ... [2024-11-16 23:55:02,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b25ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:55:02, skipping insertion in model container [2024-11-16 23:55:02,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:01" (2/3) ... [2024-11-16 23:55:02,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b25ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:55:02, skipping insertion in model container [2024-11-16 23:55:02,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:02" (3/3) ... [2024-11-16 23:55:02,578 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2024-11-16 23:55:02,592 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:55:02,592 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 23:55:02,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:55:02,642 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;@1b0e66b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:55:02,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 23:55:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 112 states have (on average 1.625) internal successors, (182), 133 states have internal predecessors, (182), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 23:55:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 23:55:02,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:02,659 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:02,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:02,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 600516782, now seen corresponding path program 1 times [2024-11-16 23:55:02,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:02,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427866808] [2024-11-16 23:55:02,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:02,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:02,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:03,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:03,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 23:55:03,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:03,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427866808] [2024-11-16 23:55:03,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427866808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:03,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:03,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:55:03,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511474517] [2024-11-16 23:55:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:03,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:55:03,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:03,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:55:03,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:03,178 INFO L87 Difference]: Start difference. First operand has 145 states, 112 states have (on average 1.625) internal successors, (182), 133 states have internal predecessors, (182), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 23:55:03,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:03,528 INFO L93 Difference]: Finished difference Result 142 states and 172 transitions. [2024-11-16 23:55:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:55:03,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-16 23:55:03,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:03,541 INFO L225 Difference]: With dead ends: 142 [2024-11-16 23:55:03,542 INFO L226 Difference]: Without dead ends: 139 [2024-11-16 23:55:03,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:03,549 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 42 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:03,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 201 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:55:03,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-16 23:55:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-16 23:55:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 108 states have (on average 1.25) internal successors, (135), 127 states have internal predecessors, (135), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-16 23:55:03,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 169 transitions. [2024-11-16 23:55:03,608 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 169 transitions. Word has length 40 [2024-11-16 23:55:03,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:03,608 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 169 transitions. [2024-11-16 23:55:03,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 23:55:03,608 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 169 transitions. [2024-11-16 23:55:03,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 23:55:03,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:03,611 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:03,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:55:03,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:03,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1258389289, now seen corresponding path program 1 times [2024-11-16 23:55:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:03,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693296287] [2024-11-16 23:55:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:03,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:04,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:04,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:04,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 23:55:04,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693296287] [2024-11-16 23:55:04,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693296287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516662520] [2024-11-16 23:55:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:04,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:04,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:04,679 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) [2024-11-16 23:55:04,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:55:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:04,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 23:55:04,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:55:05,026 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:55:05,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516662520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:05,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:55:05,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-16 23:55:05,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259740196] [2024-11-16 23:55:05,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:05,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:55:05,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:05,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:55:05,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-16 23:55:05,030 INFO L87 Difference]: Start difference. First operand 139 states and 169 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 23:55:05,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:05,136 INFO L93 Difference]: Finished difference Result 152 states and 187 transitions. [2024-11-16 23:55:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:55:05,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-16 23:55:05,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:05,141 INFO L225 Difference]: With dead ends: 152 [2024-11-16 23:55:05,143 INFO L226 Difference]: Without dead ends: 152 [2024-11-16 23:55:05,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:55:05,144 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 14 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:05,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 634 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-16 23:55:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-16 23:55:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 135 states have internal predecessors, (144), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 23:55:05,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 184 transitions. [2024-11-16 23:55:05,166 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 184 transitions. Word has length 41 [2024-11-16 23:55:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:05,166 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 184 transitions. [2024-11-16 23:55:05,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 23:55:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 184 transitions. [2024-11-16 23:55:05,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 23:55:05,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:05,173 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:05,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:55:05,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:05,374 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:05,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:05,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1671282441, now seen corresponding path program 1 times [2024-11-16 23:55:05,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:05,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160732677] [2024-11-16 23:55:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:05,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:06,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:06,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:07,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 23:55:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-16 23:55:08,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:08,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160732677] [2024-11-16 23:55:08,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160732677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:08,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401519691] [2024-11-16 23:55:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:08,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:08,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:08,226 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) [2024-11-16 23:55:08,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:55:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:08,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-16 23:55:08,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-16 23:55:08,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:55:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401519691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:08,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:55:08,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 15 [2024-11-16 23:55:08,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930913215] [2024-11-16 23:55:08,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:08,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:55:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:55:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:55:08,912 INFO L87 Difference]: Start difference. First operand 152 states and 184 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 23:55:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:09,392 INFO L93 Difference]: Finished difference Result 156 states and 189 transitions. [2024-11-16 23:55:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:55:09,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2024-11-16 23:55:09,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:09,394 INFO L225 Difference]: With dead ends: 156 [2024-11-16 23:55:09,396 INFO L226 Difference]: Without dead ends: 156 [2024-11-16 23:55:09,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-16 23:55:09,397 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 51 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:09,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 762 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:55:09,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-16 23:55:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-16 23:55:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 139 states have internal predecessors, (147), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (15), 11 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-16 23:55:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 189 transitions. [2024-11-16 23:55:09,415 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 189 transitions. Word has length 113 [2024-11-16 23:55:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:09,417 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 189 transitions. [2024-11-16 23:55:09,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 23:55:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 189 transitions. [2024-11-16 23:55:09,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 23:55:09,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:09,421 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:09,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:09,621 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,SelfDestructingSolverStorable2 [2024-11-16 23:55:09,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:09,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:09,623 INFO L85 PathProgramCache]: Analyzing trace with hash 628699927, now seen corresponding path program 1 times [2024-11-16 23:55:09,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:09,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289539977] [2024-11-16 23:55:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:09,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:10,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:10,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:10,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 23:55:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-16 23:55:11,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:11,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289539977] [2024-11-16 23:55:11,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289539977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:11,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259884099] [2024-11-16 23:55:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:11,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:11,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:11,581 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) [2024-11-16 23:55:11,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:55:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:12,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-16 23:55:12,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 94 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-16 23:55:12,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 23:55:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259884099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:12,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:12,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 18 [2024-11-16 23:55:12,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419332243] [2024-11-16 23:55:12,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:12,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 23:55:12,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:12,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 23:55:12,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-16 23:55:12,946 INFO L87 Difference]: Start difference. First operand 156 states and 189 transitions. Second operand has 18 states, 16 states have (on average 5.4375) internal successors, (87), 13 states have internal predecessors, (87), 8 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (18), 5 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-16 23:55:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:13,476 INFO L93 Difference]: Finished difference Result 162 states and 197 transitions. [2024-11-16 23:55:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 23:55:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.4375) internal successors, (87), 13 states have internal predecessors, (87), 8 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (18), 5 states have call predecessors, (18), 8 states have call successors, (18) Word has length 113 [2024-11-16 23:55:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:13,478 INFO L225 Difference]: With dead ends: 162 [2024-11-16 23:55:13,478 INFO L226 Difference]: Without dead ends: 162 [2024-11-16 23:55:13,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-16 23:55:13,479 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 100 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:13,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 890 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:55:13,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-16 23:55:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-16 23:55:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 122 states have (on average 1.2295081967213115) internal successors, (150), 143 states have internal predecessors, (150), 28 states have call successors, (28), 8 states have call predecessors, (28), 10 states have return successors, (19), 13 states have call predecessors, (19), 14 states have call successors, (19) [2024-11-16 23:55:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 197 transitions. [2024-11-16 23:55:13,488 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 197 transitions. Word has length 113 [2024-11-16 23:55:13,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:13,489 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 197 transitions. [2024-11-16 23:55:13,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.4375) internal successors, (87), 13 states have internal predecessors, (87), 8 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (18), 5 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-16 23:55:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 197 transitions. [2024-11-16 23:55:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 23:55:13,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:13,491 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:13,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 23:55:13,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:13,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:13,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:13,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2122612376, now seen corresponding path program 1 times [2024-11-16 23:55:13,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661059700] [2024-11-16 23:55:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 23:55:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-16 23:55:15,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:15,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661059700] [2024-11-16 23:55:15,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661059700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:15,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106156716] [2024-11-16 23:55:15,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:15,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:15,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:15,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:55:15,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:55:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:15,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-16 23:55:15,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:16,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 23:55:16,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-16 23:55:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-16 23:55:16,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:16,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-16 23:55:16,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-16 23:55:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-16 23:55:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106156716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:16,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 16 [2024-11-16 23:55:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635390684] [2024-11-16 23:55:16,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:16,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 23:55:16,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 23:55:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-16 23:55:16,495 INFO L87 Difference]: Start difference. First operand 162 states and 197 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-16 23:55:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:17,306 INFO L93 Difference]: Finished difference Result 239 states and 293 transitions. [2024-11-16 23:55:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 23:55:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 113 [2024-11-16 23:55:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:17,308 INFO L225 Difference]: With dead ends: 239 [2024-11-16 23:55:17,308 INFO L226 Difference]: Without dead ends: 232 [2024-11-16 23:55:17,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-11-16 23:55:17,309 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 160 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:17,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1808 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 23:55:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-16 23:55:17,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 197. [2024-11-16 23:55:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 155 states have (on average 1.2193548387096773) internal successors, (189), 174 states have internal predecessors, (189), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (20), 13 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-16 23:55:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2024-11-16 23:55:17,326 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 113 [2024-11-16 23:55:17,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:17,326 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2024-11-16 23:55:17,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-16 23:55:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2024-11-16 23:55:17,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 23:55:17,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:17,328 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:17,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:17,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:17,533 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:17,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:17,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2046848176, now seen corresponding path program 1 times [2024-11-16 23:55:17,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:17,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024452527] [2024-11-16 23:55:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:17,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:18,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:18,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:18,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:18,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:18,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 23:55:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 27 proven. 21 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 23:55:19,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:19,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024452527] [2024-11-16 23:55:19,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024452527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:19,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685651439] [2024-11-16 23:55:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:19,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:19,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:19,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:55:19,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:55:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:20,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-16 23:55:20,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:20,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 23:55:20,238 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-16 23:55:20,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:20,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-16 23:55:20,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-16 23:55:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 29 proven. 25 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-16 23:55:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685651439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:20,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:20,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 24 [2024-11-16 23:55:20,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535729173] [2024-11-16 23:55:20,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:20,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 23:55:20,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 23:55:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-16 23:55:20,860 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand has 24 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 18 states have internal predecessors, (70), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (13), 8 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-16 23:55:21,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:21,712 INFO L93 Difference]: Finished difference Result 197 states and 234 transitions. [2024-11-16 23:55:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 23:55:21,713 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 18 states have internal predecessors, (70), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (13), 8 states have call predecessors, (13), 9 states have call successors, (13) Word has length 116 [2024-11-16 23:55:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:21,714 INFO L225 Difference]: With dead ends: 197 [2024-11-16 23:55:21,714 INFO L226 Difference]: Without dead ends: 197 [2024-11-16 23:55:21,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=234, Invalid=1326, Unknown=0, NotChecked=0, Total=1560 [2024-11-16 23:55:21,716 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 106 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:21,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1421 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 23:55:21,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-16 23:55:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-16 23:55:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 155 states have (on average 1.2129032258064516) internal successors, (188), 174 states have internal predecessors, (188), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (17), 13 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-16 23:55:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 234 transitions. [2024-11-16 23:55:21,732 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 234 transitions. Word has length 116 [2024-11-16 23:55:21,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:21,732 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 234 transitions. [2024-11-16 23:55:21,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 18 states have internal predecessors, (70), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (13), 8 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-16 23:55:21,733 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 234 transitions. [2024-11-16 23:55:21,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 23:55:21,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:21,734 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:21,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 23:55:21,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:21,935 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:21,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:21,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1416389551, now seen corresponding path program 1 times [2024-11-16 23:55:21,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:21,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817765193] [2024-11-16 23:55:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:24,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 23:55:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 23:55:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 23:55:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:28,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 23:55:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:29,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 23:55:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:30,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 23:55:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat