./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:08:10,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:08:10,654 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 06:08:10,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:08:10,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:08:10,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:08:10,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:08:10,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:08:10,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:08:10,680 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:08:10,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:08:10,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:08:10,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:08:10,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:08:10,681 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:08:10,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:08:10,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:08:10,681 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:08:10,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:08:10,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:08:10,682 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:08:10,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:10,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:08:10,683 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:08:10,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:08:10,684 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2025-02-08 06:08:10,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:08:10,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:08:10,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:08:10,981 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:08:10,981 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:08:10,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2025-02-08 06:08:12,261 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9faee530/2e135a435edc435681cf6f86f5bea322/FLAGd52bbf451 [2025-02-08 06:08:12,661 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:08:12,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2025-02-08 06:08:12,683 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9faee530/2e135a435edc435681cf6f86f5bea322/FLAGd52bbf451 [2025-02-08 06:08:12,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9faee530/2e135a435edc435681cf6f86f5bea322 [2025-02-08 06:08:12,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:08:12,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:08:12,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:12,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:08:12,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:08:12,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:12" (1/1) ... [2025-02-08 06:08:12,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea9c653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:12, skipping insertion in model container [2025-02-08 06:08:12,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:12" (1/1) ... [2025-02-08 06:08:12,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:13,043 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,075 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,077 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,083 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,103 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,104 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:13,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:13,116 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:08:13,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:13,242 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:08:13,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13 WrapperNode [2025-02-08 06:08:13,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:13,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:08:13,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:08:13,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:08:13,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,341 INFO L138 Inliner]: procedures = 208, calls = 229, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1264 [2025-02-08 06:08:13,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:08:13,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:08:13,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:08:13,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:08:13,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,364 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,430 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2025-02-08 06:08:13,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,472 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:08:13,502 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:08:13,502 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:08:13,502 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:08:13,503 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (1/1) ... [2025-02-08 06:08:13,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:13,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:13,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 06:08:13,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 06:08:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 06:08:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 06:08:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 06:08:13,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 06:08:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 06:08:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 06:08:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 06:08:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 06:08:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 06:08:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 06:08:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 06:08:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 06:08:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 06:08:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 06:08:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 06:08:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:08:13,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:08:13,716 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:08:13,718 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:08:14,582 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L812: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 06:08:14,670 INFO L? ?]: Removed 303 outVars from TransFormulas that were not future-live. [2025-02-08 06:08:14,671 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:08:14,701 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:08:14,701 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-08 06:08:14,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:08:14 BoogieIcfgContainer [2025-02-08 06:08:14,702 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:08:14,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:08:14,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:08:14,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:08:14,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:08:12" (1/3) ... [2025-02-08 06:08:14,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa843ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:08:14, skipping insertion in model container [2025-02-08 06:08:14,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:13" (2/3) ... [2025-02-08 06:08:14,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa843ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:08:14, skipping insertion in model container [2025-02-08 06:08:14,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:08:14" (3/3) ... [2025-02-08 06:08:14,708 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-1.i [2025-02-08 06:08:14,717 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:08:14,718 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test2-1.i that has 6 procedures, 388 locations, 1 initial locations, 33 loop locations, and 2 error locations. [2025-02-08 06:08:14,748 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:08:14,756 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;@2ff2099a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:08:14,756 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 06:08:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 363 states have (on average 1.6225895316804408) internal successors, (589), 372 states have internal predecessors, (589), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 06:08:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 06:08:14,763 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:14,763 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 06:08:14,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:14,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1014393348, now seen corresponding path program 1 times [2025-02-08 06:08:14,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:14,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570592409] [2025-02-08 06:08:14,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:14,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:14,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 06:08:14,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 06:08:14,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:14,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:14,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:14,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570592409] [2025-02-08 06:08:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570592409] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:14,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:14,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:08:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360000769] [2025-02-08 06:08:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:14,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 06:08:14,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:14,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 06:08:14,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 06:08:14,894 INFO L87 Difference]: Start difference. First operand has 380 states, 363 states have (on average 1.6225895316804408) internal successors, (589), 372 states have internal predecessors, (589), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:14,984 INFO L93 Difference]: Finished difference Result 378 states and 550 transitions. [2025-02-08 06:08:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 06:08:14,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-08 06:08:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:14,993 INFO L225 Difference]: With dead ends: 378 [2025-02-08 06:08:14,994 INFO L226 Difference]: Without dead ends: 373 [2025-02-08 06:08:14,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 06:08:15,000 INFO L435 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:15,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-02-08 06:08:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2025-02-08 06:08:15,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 360 states have (on average 1.4666666666666666) internal successors, (528), 366 states have internal predecessors, (528), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 541 transitions. [2025-02-08 06:08:15,045 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 541 transitions. Word has length 6 [2025-02-08 06:08:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:15,045 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 541 transitions. [2025-02-08 06:08:15,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 541 transitions. [2025-02-08 06:08:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 06:08:15,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:15,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:15,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 06:08:15,046 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:15,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash 191850990, now seen corresponding path program 1 times [2025-02-08 06:08:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101249868] [2025-02-08 06:08:15,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:15,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:15,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 06:08:15,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 06:08:15,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:15,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:15,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:15,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:15,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101249868] [2025-02-08 06:08:15,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101249868] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:15,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:15,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:08:15,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294081869] [2025-02-08 06:08:15,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:15,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:15,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:15,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:15,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:15,168 INFO L87 Difference]: Start difference. First operand 373 states and 541 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:15,411 INFO L93 Difference]: Finished difference Result 732 states and 1069 transitions. [2025-02-08 06:08:15,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:08:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 06:08:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:15,414 INFO L225 Difference]: With dead ends: 732 [2025-02-08 06:08:15,414 INFO L226 Difference]: Without dead ends: 732 [2025-02-08 06:08:15,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:15,415 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 513 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:15,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1428 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:08:15,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2025-02-08 06:08:15,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 375. [2025-02-08 06:08:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 362 states have (on average 1.4640883977900552) internal successors, (530), 368 states have internal predecessors, (530), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 543 transitions. [2025-02-08 06:08:15,431 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 543 transitions. Word has length 8 [2025-02-08 06:08:15,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:15,431 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 543 transitions. [2025-02-08 06:08:15,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:15,431 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 543 transitions. [2025-02-08 06:08:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 06:08:15,433 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:15,433 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:15,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 06:08:15,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:15,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1642466240, now seen corresponding path program 1 times [2025-02-08 06:08:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843758830] [2025-02-08 06:08:15,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:15,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:15,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 06:08:15,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 06:08:15,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:15,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:15,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:15,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:15,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843758830] [2025-02-08 06:08:15,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843758830] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:15,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:15,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:15,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054493047] [2025-02-08 06:08:15,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:15,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:15,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:15,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:15,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:15,800 INFO L87 Difference]: Start difference. First operand 375 states and 543 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:15,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:15,924 INFO L93 Difference]: Finished difference Result 333 states and 466 transitions. [2025-02-08 06:08:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:08:15,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-02-08 06:08:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:15,926 INFO L225 Difference]: With dead ends: 333 [2025-02-08 06:08:15,926 INFO L226 Difference]: Without dead ends: 333 [2025-02-08 06:08:15,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:15,927 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 30 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:15,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1205 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:15,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-08 06:08:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2025-02-08 06:08:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 320 states have (on average 1.415625) internal successors, (453), 326 states have internal predecessors, (453), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:15,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 466 transitions. [2025-02-08 06:08:15,942 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 466 transitions. Word has length 83 [2025-02-08 06:08:15,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:15,942 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 466 transitions. [2025-02-08 06:08:15,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 466 transitions. [2025-02-08 06:08:15,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 06:08:15,944 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:15,944 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:15,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 06:08:15,944 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:15,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:15,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1354699353, now seen corresponding path program 1 times [2025-02-08 06:08:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:15,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683868927] [2025-02-08 06:08:15,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:15,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:15,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 06:08:16,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 06:08:16,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:16,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:16,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:16,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683868927] [2025-02-08 06:08:16,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683868927] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:16,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:16,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:08:16,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151462636] [2025-02-08 06:08:16,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:16,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:08:16,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:16,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:08:16,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:16,088 INFO L87 Difference]: Start difference. First operand 333 states and 466 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:16,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:16,167 INFO L93 Difference]: Finished difference Result 333 states and 463 transitions. [2025-02-08 06:08:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:08:16,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-02-08 06:08:16,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:16,169 INFO L225 Difference]: With dead ends: 333 [2025-02-08 06:08:16,169 INFO L226 Difference]: Without dead ends: 333 [2025-02-08 06:08:16,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:16,170 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 1 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:16,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 818 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-08 06:08:16,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2025-02-08 06:08:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 320 states have (on average 1.40625) internal successors, (450), 326 states have internal predecessors, (450), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:16,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 463 transitions. [2025-02-08 06:08:16,179 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 463 transitions. Word has length 83 [2025-02-08 06:08:16,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:16,179 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 463 transitions. [2025-02-08 06:08:16,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:16,179 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 463 transitions. [2025-02-08 06:08:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 06:08:16,181 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:16,181 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:16,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 06:08:16,181 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:16,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:16,182 INFO L85 PathProgramCache]: Analyzing trace with hash 916689850, now seen corresponding path program 1 times [2025-02-08 06:08:16,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:16,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982988833] [2025-02-08 06:08:16,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:16,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:16,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 06:08:16,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 06:08:16,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:16,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:16,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982988833] [2025-02-08 06:08:16,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982988833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:16,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:16,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:08:16,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190926666] [2025-02-08 06:08:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:16,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:08:16,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:16,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:08:16,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:16,369 INFO L87 Difference]: Start difference. First operand 333 states and 463 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:16,486 INFO L93 Difference]: Finished difference Result 566 states and 796 transitions. [2025-02-08 06:08:16,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:08:16,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-02-08 06:08:16,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:16,489 INFO L225 Difference]: With dead ends: 566 [2025-02-08 06:08:16,490 INFO L226 Difference]: Without dead ends: 566 [2025-02-08 06:08:16,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:16,491 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 270 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:16,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 1015 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:16,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-02-08 06:08:16,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 557. [2025-02-08 06:08:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 544 states have (on average 1.4246323529411764) internal successors, (775), 550 states have internal predecessors, (775), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 788 transitions. [2025-02-08 06:08:16,504 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 788 transitions. Word has length 83 [2025-02-08 06:08:16,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:16,504 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 788 transitions. [2025-02-08 06:08:16,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:16,504 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 788 transitions. [2025-02-08 06:08:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-08 06:08:16,506 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:16,506 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:16,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 06:08:16,506 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:16,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:16,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1450367586, now seen corresponding path program 1 times [2025-02-08 06:08:16,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:16,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645955879] [2025-02-08 06:08:16,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:16,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:16,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 06:08:16,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 06:08:16,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:16,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 06:08:16,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:16,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645955879] [2025-02-08 06:08:16,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645955879] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:16,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:16,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979153780] [2025-02-08 06:08:16,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:16,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:16,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:16,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:16,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:16,894 INFO L87 Difference]: Start difference. First operand 557 states and 788 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:17,058 INFO L93 Difference]: Finished difference Result 793 states and 1131 transitions. [2025-02-08 06:08:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:08:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2025-02-08 06:08:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:17,061 INFO L225 Difference]: With dead ends: 793 [2025-02-08 06:08:17,061 INFO L226 Difference]: Without dead ends: 793 [2025-02-08 06:08:17,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:17,065 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 426 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:17,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1286 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2025-02-08 06:08:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 559. [2025-02-08 06:08:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 546 states have (on average 1.4230769230769231) internal successors, (777), 552 states have internal predecessors, (777), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 790 transitions. [2025-02-08 06:08:17,085 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 790 transitions. Word has length 98 [2025-02-08 06:08:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:17,085 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 790 transitions. [2025-02-08 06:08:17,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:17,086 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 790 transitions. [2025-02-08 06:08:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 06:08:17,089 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:17,089 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:17,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 06:08:17,089 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:17,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:17,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1055388207, now seen corresponding path program 1 times [2025-02-08 06:08:17,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:17,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386545391] [2025-02-08 06:08:17,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:17,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:17,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 06:08:17,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 06:08:17,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:17,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 06:08:17,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:17,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386545391] [2025-02-08 06:08:17,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386545391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:17,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:17,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:08:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811703455] [2025-02-08 06:08:17,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:17,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:08:17,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:17,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:08:17,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:17,315 INFO L87 Difference]: Start difference. First operand 559 states and 790 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:17,422 INFO L93 Difference]: Finished difference Result 599 states and 830 transitions. [2025-02-08 06:08:17,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:08:17,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 154 [2025-02-08 06:08:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:17,425 INFO L225 Difference]: With dead ends: 599 [2025-02-08 06:08:17,425 INFO L226 Difference]: Without dead ends: 599 [2025-02-08 06:08:17,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:17,425 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 8 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:17,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 797 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2025-02-08 06:08:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2025-02-08 06:08:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 586 states have (on average 1.39419795221843) internal successors, (817), 592 states have internal predecessors, (817), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 830 transitions. [2025-02-08 06:08:17,445 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 830 transitions. Word has length 154 [2025-02-08 06:08:17,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:17,445 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 830 transitions. [2025-02-08 06:08:17,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:17,445 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 830 transitions. [2025-02-08 06:08:17,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 06:08:17,448 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:17,448 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:17,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 06:08:17,448 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:17,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:17,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1179461454, now seen corresponding path program 1 times [2025-02-08 06:08:17,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:17,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976117226] [2025-02-08 06:08:17,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:17,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:17,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 06:08:17,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 06:08:17,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:17,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 06:08:17,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976117226] [2025-02-08 06:08:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976117226] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:17,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:17,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339478196] [2025-02-08 06:08:17,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:17,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:17,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:17,695 INFO L87 Difference]: Start difference. First operand 599 states and 830 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:17,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:17,818 INFO L93 Difference]: Finished difference Result 475 states and 630 transitions. [2025-02-08 06:08:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:08:17,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 154 [2025-02-08 06:08:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:17,821 INFO L225 Difference]: With dead ends: 475 [2025-02-08 06:08:17,821 INFO L226 Difference]: Without dead ends: 475 [2025-02-08 06:08:17,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:17,822 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 32 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:17,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 979 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2025-02-08 06:08:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2025-02-08 06:08:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 462 states have (on average 1.3354978354978355) internal successors, (617), 468 states have internal predecessors, (617), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 630 transitions. [2025-02-08 06:08:17,833 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 630 transitions. Word has length 154 [2025-02-08 06:08:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:17,834 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 630 transitions. [2025-02-08 06:08:17,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 630 transitions. [2025-02-08 06:08:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 06:08:17,835 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:17,835 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:17,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 06:08:17,835 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:17,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:17,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1327209013, now seen corresponding path program 1 times [2025-02-08 06:08:17,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:17,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798022567] [2025-02-08 06:08:17,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:17,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:17,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 06:08:17,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 06:08:17,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:17,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:18,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:18,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:18,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798022567] [2025-02-08 06:08:18,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798022567] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:18,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:18,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 06:08:18,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472699909] [2025-02-08 06:08:18,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:18,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 06:08:18,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:18,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 06:08:18,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:18,130 INFO L87 Difference]: Start difference. First operand 475 states and 630 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:18,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:18,588 INFO L93 Difference]: Finished difference Result 562 states and 741 transitions. [2025-02-08 06:08:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:08:18,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 154 [2025-02-08 06:08:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:18,591 INFO L225 Difference]: With dead ends: 562 [2025-02-08 06:08:18,591 INFO L226 Difference]: Without dead ends: 562 [2025-02-08 06:08:18,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:08:18,592 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 794 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:18,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 960 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 06:08:18,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2025-02-08 06:08:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 379. [2025-02-08 06:08:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 366 states have (on average 1.3224043715846994) internal successors, (484), 372 states have internal predecessors, (484), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 497 transitions. [2025-02-08 06:08:18,599 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 497 transitions. Word has length 154 [2025-02-08 06:08:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:18,599 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 497 transitions. [2025-02-08 06:08:18,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:18,600 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 497 transitions. [2025-02-08 06:08:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-08 06:08:18,603 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:18,603 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:18,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 06:08:18,603 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:18,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:18,604 INFO L85 PathProgramCache]: Analyzing trace with hash -798908355, now seen corresponding path program 1 times [2025-02-08 06:08:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:18,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246618767] [2025-02-08 06:08:18,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:18,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:18,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-08 06:08:18,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-08 06:08:18,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:18,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:19,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:19,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246618767] [2025-02-08 06:08:19,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246618767] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 06:08:19,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307028039] [2025-02-08 06:08:19,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:19,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:19,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:19,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 06:08:19,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-08 06:08:19,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-08 06:08:19,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:19,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:19,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:08:19,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:19,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-02-08 06:08:19,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 06:08:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:19,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:08:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307028039] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:08:19,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 06:08:19,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2025-02-08 06:08:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656952207] [2025-02-08 06:08:19,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 06:08:19,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 06:08:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:19,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 06:08:19,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-02-08 06:08:19,944 INFO L87 Difference]: Start difference. First operand 379 states and 497 transitions. Second operand has 12 states, 12 states have (on average 26.916666666666668) internal successors, (323), 12 states have internal predecessors, (323), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 06:08:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:20,306 INFO L93 Difference]: Finished difference Result 1112 states and 1470 transitions. [2025-02-08 06:08:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 06:08:20,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.916666666666668) internal successors, (323), 12 states have internal predecessors, (323), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 164 [2025-02-08 06:08:20,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:20,310 INFO L225 Difference]: With dead ends: 1112 [2025-02-08 06:08:20,310 INFO L226 Difference]: Without dead ends: 1112 [2025-02-08 06:08:20,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-02-08 06:08:20,311 INFO L435 NwaCegarLoop]: 501 mSDtfsCounter, 1430 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:20,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 3353 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:08:20,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2025-02-08 06:08:20,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 721. [2025-02-08 06:08:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 704 states have (on average 1.3210227272727273) internal successors, (930), 710 states have internal predecessors, (930), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 06:08:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 949 transitions. [2025-02-08 06:08:20,325 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 949 transitions. Word has length 164 [2025-02-08 06:08:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:20,325 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 949 transitions. [2025-02-08 06:08:20,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.916666666666668) internal successors, (323), 12 states have internal predecessors, (323), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 06:08:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 949 transitions. [2025-02-08 06:08:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2025-02-08 06:08:20,328 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:20,329 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:20,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 06:08:20,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-08 06:08:20,530 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:20,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1352172841, now seen corresponding path program 1 times [2025-02-08 06:08:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:20,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668550423] [2025-02-08 06:08:20,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:20,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 389 statements into 1 equivalence classes. [2025-02-08 06:08:20,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 389 of 389 statements. [2025-02-08 06:08:20,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:20,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:23,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:23,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668550423] [2025-02-08 06:08:23,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668550423] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 06:08:23,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348414563] [2025-02-08 06:08:23,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:23,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:23,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:23,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:23,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 06:08:23,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 389 statements into 1 equivalence classes. [2025-02-08 06:08:24,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 389 of 389 statements. [2025-02-08 06:08:24,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:24,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:24,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 06:08:24,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:24,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-02-08 06:08:24,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 06:08:24,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 06:08:24,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 06:08:24,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-08 06:08:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:24,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:08:25,046 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:25,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348414563] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:08:25,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 06:08:25,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2025-02-08 06:08:25,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554908007] [2025-02-08 06:08:25,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 06:08:25,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 06:08:25,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:25,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 06:08:25,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2025-02-08 06:08:25,052 INFO L87 Difference]: Start difference. First operand 721 states and 949 transitions. Second operand has 23 states, 23 states have (on average 43.391304347826086) internal successors, (998), 23 states have internal predecessors, (998), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 06:08:26,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:26,128 INFO L93 Difference]: Finished difference Result 2336 states and 3099 transitions. [2025-02-08 06:08:26,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-08 06:08:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 43.391304347826086) internal successors, (998), 23 states have internal predecessors, (998), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 389 [2025-02-08 06:08:26,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:26,136 INFO L225 Difference]: With dead ends: 2336 [2025-02-08 06:08:26,136 INFO L226 Difference]: Without dead ends: 2336 [2025-02-08 06:08:26,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 766 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2025-02-08 06:08:26,137 INFO L435 NwaCegarLoop]: 1296 mSDtfsCounter, 4130 mSDsluCounter, 10307 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 11603 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:26,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4140 Valid, 11603 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 06:08:26,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2025-02-08 06:08:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 1573. [2025-02-08 06:08:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1550 states have (on average 1.32) internal successors, (2046), 1556 states have internal predecessors, (2046), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 06:08:26,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2077 transitions. [2025-02-08 06:08:26,168 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2077 transitions. Word has length 389 [2025-02-08 06:08:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:26,168 INFO L471 AbstractCegarLoop]: Abstraction has 1573 states and 2077 transitions. [2025-02-08 06:08:26,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 43.391304347826086) internal successors, (998), 23 states have internal predecessors, (998), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 06:08:26,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2077 transitions. [2025-02-08 06:08:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2025-02-08 06:08:26,184 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:26,184 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:26,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 06:08:26,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:26,386 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:26,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:26,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1041680297, now seen corresponding path program 2 times [2025-02-08 06:08:26,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524369034] [2025-02-08 06:08:26,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:08:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:26,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 839 statements into 2 equivalence classes. [2025-02-08 06:08:26,702 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 74 of 839 statements. [2025-02-08 06:08:26,702 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 06:08:26,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3381 trivial. 0 not checked. [2025-02-08 06:08:26,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:26,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524369034] [2025-02-08 06:08:26,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524369034] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:26,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:26,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 06:08:26,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546928618] [2025-02-08 06:08:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:26,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 06:08:26,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:26,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 06:08:26,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:08:26,872 INFO L87 Difference]: Start difference. First operand 1573 states and 2077 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:27,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:27,159 INFO L93 Difference]: Finished difference Result 1578 states and 2084 transitions. [2025-02-08 06:08:27,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 06:08:27,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 839 [2025-02-08 06:08:27,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:27,166 INFO L225 Difference]: With dead ends: 1578 [2025-02-08 06:08:27,166 INFO L226 Difference]: Without dead ends: 1578 [2025-02-08 06:08:27,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:08:27,167 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 14 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:27,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1426 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:08:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2025-02-08 06:08:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1575. [2025-02-08 06:08:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1552 states have (on average 1.3195876288659794) internal successors, (2048), 1558 states have internal predecessors, (2048), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 06:08:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2079 transitions. [2025-02-08 06:08:27,191 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2079 transitions. Word has length 839 [2025-02-08 06:08:27,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:27,192 INFO L471 AbstractCegarLoop]: Abstraction has 1575 states and 2079 transitions. [2025-02-08 06:08:27,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2079 transitions. [2025-02-08 06:08:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2025-02-08 06:08:27,206 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:27,206 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:27,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 06:08:27,207 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:27,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1547869842, now seen corresponding path program 1 times [2025-02-08 06:08:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:27,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85016334] [2025-02-08 06:08:27,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:27,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:27,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 840 statements into 1 equivalence classes. [2025-02-08 06:08:27,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 840 of 840 statements. [2025-02-08 06:08:27,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:27,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3381 trivial. 0 not checked. [2025-02-08 06:08:29,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:08:29,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85016334] [2025-02-08 06:08:29,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85016334] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:29,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:29,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 06:08:29,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515182795] [2025-02-08 06:08:29,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:29,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 06:08:29,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:08:29,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 06:08:29,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:08:29,304 INFO L87 Difference]: Start difference. First operand 1575 states and 2079 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:29,574 INFO L93 Difference]: Finished difference Result 1580 states and 2085 transitions. [2025-02-08 06:08:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 06:08:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 840 [2025-02-08 06:08:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:29,581 INFO L225 Difference]: With dead ends: 1580 [2025-02-08 06:08:29,581 INFO L226 Difference]: Without dead ends: 1580 [2025-02-08 06:08:29,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:08:29,582 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:29,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1712 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:08:29,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2025-02-08 06:08:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1579. [2025-02-08 06:08:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1556 states have (on average 1.319408740359897) internal successors, (2053), 1562 states have internal predecessors, (2053), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 06:08:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2084 transitions. [2025-02-08 06:08:29,609 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2084 transitions. Word has length 840 [2025-02-08 06:08:29,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:29,610 INFO L471 AbstractCegarLoop]: Abstraction has 1579 states and 2084 transitions. [2025-02-08 06:08:29,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2084 transitions. [2025-02-08 06:08:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2025-02-08 06:08:29,616 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:29,617 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:29,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 06:08:29,618 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:29,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:29,619 INFO L85 PathProgramCache]: Analyzing trace with hash 929325579, now seen corresponding path program 1 times [2025-02-08 06:08:29,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:08:29,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049518677] [2025-02-08 06:08:29,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:29,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:08:29,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 840 statements into 1 equivalence classes.