./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:19:26,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:19:26,593 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:19:26,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:19:26,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:19:26,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:19:26,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:19:26,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:19:26,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:19:26,618 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:19:26,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:19:26,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:19:26,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:19:26,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:19:26,619 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:19:26,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:19:26,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:19:26,619 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:19:26,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:19:26,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:19:26,620 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:19:26,621 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:19:26,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:19:26,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:19:26,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:19:26,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:19:26,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:19:26,622 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2025-03-08 22:19:26,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:19:26,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:19:26,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:19:26,837 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:19:26,837 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:19:26,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2025-03-08 22:19:27,968 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb44e8624/9124cd7989f54055829d826595a32c50/FLAG2c7591c35 [2025-03-08 22:19:28,348 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:19:28,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2025-03-08 22:19:28,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb44e8624/9124cd7989f54055829d826595a32c50/FLAG2c7591c35 [2025-03-08 22:19:28,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb44e8624/9124cd7989f54055829d826595a32c50 [2025-03-08 22:19:28,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:19:28,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:19:28,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:19:28,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:19:28,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:19:28,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:19:28" (1/1) ... [2025-03-08 22:19:28,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58508e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:28, skipping insertion in model container [2025-03-08 22:19:28,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:19:28" (1/1) ... [2025-03-08 22:19:28,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:19:28,937 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,949 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,953 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,954 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,960 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,977 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,977 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,978 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,978 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:28,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:19:28,991 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:19:29,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:19:29,112 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:19:29,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29 WrapperNode [2025-03-08 22:19:29,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:19:29,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:19:29,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:19:29,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:19:29,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,210 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3244 [2025-03-08 22:19:29,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:19:29,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:19:29,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:19:29,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:19:29,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,254 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,308 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 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, 4, 42]. [2025-03-08 22:19:29,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:19:29,381 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:19:29,381 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:19:29,381 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:19:29,382 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (1/1) ... [2025-03-08 22:19:29,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:19:29,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:29,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:19:29,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:19:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-08 22:19:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-08 22:19:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 22:19:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 22:19:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 22:19:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:19:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:19:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 22:19:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 22:19:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 22:19:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:19:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:19:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 22:19:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:19:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:19:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 22:19:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:19:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:19:29,566 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:19:29,567 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:19:31,507 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-08 22:19:31,696 INFO L? ?]: Removed 799 outVars from TransFormulas that were not future-live. [2025-03-08 22:19:31,697 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:19:31,771 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:19:31,772 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-08 22:19:31,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:19:31 BoogieIcfgContainer [2025-03-08 22:19:31,772 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:19:31,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:19:31,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:19:31,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:19:31,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:19:28" (1/3) ... [2025-03-08 22:19:31,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29eb0359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:19:31, skipping insertion in model container [2025-03-08 22:19:31,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:29" (2/3) ... [2025-03-08 22:19:31,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29eb0359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:19:31, skipping insertion in model container [2025-03-08 22:19:31,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:19:31" (3/3) ... [2025-03-08 22:19:31,780 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2025-03-08 22:19:31,790 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:19:31,792 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test9-1.i that has 6 procedures, 1378 locations, 1 initial locations, 31 loop locations, and 2 error locations. [2025-03-08 22:19:31,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:19:31,844 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;@50bf243, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:19:31,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:19:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 1370 states, 859 states have (on average 1.839348079161816) internal successors, (1580), 1363 states have internal predecessors, (1580), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2025-03-08 22:19:31,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 22:19:31,852 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:31,853 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:31,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:31,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1249373015, now seen corresponding path program 1 times [2025-03-08 22:19:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:31,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228299353] [2025-03-08 22:19:31,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:31,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 22:19:31,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 22:19:31,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:31,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:31,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228299353] [2025-03-08 22:19:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228299353] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:31,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:31,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:19:31,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299656761] [2025-03-08 22:19:31,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:31,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:19:31,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:31,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:19:31,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:19:31,994 INFO L87 Difference]: Start difference. First operand has 1370 states, 859 states have (on average 1.839348079161816) internal successors, (1580), 1363 states have internal predecessors, (1580), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:32,136 INFO L93 Difference]: Finished difference Result 1368 states and 2531 transitions. [2025-03-08 22:19:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:19:32,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-08 22:19:32,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:32,162 INFO L225 Difference]: With dead ends: 1368 [2025-03-08 22:19:32,162 INFO L226 Difference]: Without dead ends: 1366 [2025-03-08 22:19:32,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:19:32,168 INFO L435 NwaCegarLoop]: 2490 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:32,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2490 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2025-03-08 22:19:32,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2025-03-08 22:19:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 857 states have (on average 1.7747957992998833) internal successors, (1521), 1359 states have internal predecessors, (1521), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:19:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2529 transitions. [2025-03-08 22:19:32,435 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2529 transitions. Word has length 7 [2025-03-08 22:19:32,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:32,435 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2529 transitions. [2025-03-08 22:19:32,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:32,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2529 transitions. [2025-03-08 22:19:32,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-08 22:19:32,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:32,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:32,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:19:32,436 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:32,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:32,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2072331228, now seen corresponding path program 1 times [2025-03-08 22:19:32,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:32,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153871822] [2025-03-08 22:19:32,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:32,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:32,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-08 22:19:32,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-08 22:19:32,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:32,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:32,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153871822] [2025-03-08 22:19:32,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153871822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:32,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:32,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:32,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140565404] [2025-03-08 22:19:32,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:32,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:32,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:32,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:32,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:32,595 INFO L87 Difference]: Start difference. First operand 1366 states and 2529 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:33,319 INFO L93 Difference]: Finished difference Result 2715 states and 5042 transitions. [2025-03-08 22:19:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:33,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-08 22:19:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:33,335 INFO L225 Difference]: With dead ends: 2715 [2025-03-08 22:19:33,335 INFO L226 Difference]: Without dead ends: 2715 [2025-03-08 22:19:33,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:33,337 INFO L435 NwaCegarLoop]: 2533 mSDtfsCounter, 1503 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 7027 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:33,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 7027 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 22:19:33,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2025-03-08 22:19:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1368. [2025-03-08 22:19:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 859 states have (on average 1.7729918509895226) internal successors, (1523), 1361 states have internal predecessors, (1523), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:19:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2531 transitions. [2025-03-08 22:19:33,567 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2531 transitions. Word has length 9 [2025-03-08 22:19:33,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:33,567 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 2531 transitions. [2025-03-08 22:19:33,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:33,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2531 transitions. [2025-03-08 22:19:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:19:33,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:33,569 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:33,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:19:33,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:33,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash -231763017, now seen corresponding path program 1 times [2025-03-08 22:19:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:33,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553974705] [2025-03-08 22:19:33,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:33,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:33,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:19:33,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:19:33,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:33,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:33,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:33,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:33,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553974705] [2025-03-08 22:19:33,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553974705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:33,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:33,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:33,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518609649] [2025-03-08 22:19:33,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:33,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:33,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:33,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:33,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:33,904 INFO L87 Difference]: Start difference. First operand 1368 states and 2531 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:34,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:34,039 INFO L93 Difference]: Finished difference Result 1326 states and 2454 transitions. [2025-03-08 22:19:34,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:19:34,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-03-08 22:19:34,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:34,045 INFO L225 Difference]: With dead ends: 1326 [2025-03-08 22:19:34,045 INFO L226 Difference]: Without dead ends: 1326 [2025-03-08 22:19:34,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:34,046 INFO L435 NwaCegarLoop]: 2396 mSDtfsCounter, 30 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:34,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7169 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:34,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2025-03-08 22:19:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2025-03-08 22:19:34,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 817 states have (on average 1.7698898408812729) internal successors, (1446), 1319 states have internal predecessors, (1446), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:19:34,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 2454 transitions. [2025-03-08 22:19:34,135 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 2454 transitions. Word has length 83 [2025-03-08 22:19:34,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:34,135 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 2454 transitions. [2025-03-08 22:19:34,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:34,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 2454 transitions. [2025-03-08 22:19:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:19:34,137 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:34,137 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:34,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:19:34,137 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:34,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash -519529904, now seen corresponding path program 1 times [2025-03-08 22:19:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925607376] [2025-03-08 22:19:34,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:34,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:19:34,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:19:34,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:34,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:34,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:34,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925607376] [2025-03-08 22:19:34,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925607376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:34,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:34,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:19:34,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161973375] [2025-03-08 22:19:34,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:34,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:19:34,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:34,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:19:34,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:19:34,304 INFO L87 Difference]: Start difference. First operand 1326 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:34,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:34,432 INFO L93 Difference]: Finished difference Result 2549 states and 4775 transitions. [2025-03-08 22:19:34,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:19:34,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2025-03-08 22:19:34,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:34,442 INFO L225 Difference]: With dead ends: 2549 [2025-03-08 22:19:34,443 INFO L226 Difference]: Without dead ends: 2549 [2025-03-08 22:19:34,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:19:34,443 INFO L435 NwaCegarLoop]: 2599 mSDtfsCounter, 1261 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:34,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 4999 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:34,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2025-03-08 22:19:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2545. [2025-03-08 22:19:34,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 1536 states have (on average 1.7994791666666667) internal successors, (2764), 2538 states have internal predecessors, (2764), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:19:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4772 transitions. [2025-03-08 22:19:34,624 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4772 transitions. Word has length 83 [2025-03-08 22:19:34,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:34,625 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 4772 transitions. [2025-03-08 22:19:34,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4772 transitions. [2025-03-08 22:19:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-08 22:19:34,627 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:34,627 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:34,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:19:34,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:34,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:34,628 INFO L85 PathProgramCache]: Analyzing trace with hash 955413345, now seen corresponding path program 1 times [2025-03-08 22:19:34,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:34,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559791781] [2025-03-08 22:19:34,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:34,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:34,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:19:34,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:19:34,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:34,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:19:35,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:35,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559791781] [2025-03-08 22:19:35,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559791781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:35,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:35,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:35,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513632146] [2025-03-08 22:19:35,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:35,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:35,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:35,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:35,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:35,024 INFO L87 Difference]: Start difference. First operand 2545 states and 4772 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:35,664 INFO L93 Difference]: Finished difference Result 4769 states and 9093 transitions. [2025-03-08 22:19:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:35,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2025-03-08 22:19:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:35,690 INFO L225 Difference]: With dead ends: 4769 [2025-03-08 22:19:35,690 INFO L226 Difference]: Without dead ends: 4769 [2025-03-08 22:19:35,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:35,691 INFO L435 NwaCegarLoop]: 2486 mSDtfsCounter, 1416 mSDsluCounter, 4373 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:35,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 6859 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 22:19:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2025-03-08 22:19:35,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 2547. [2025-03-08 22:19:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 1538 states have (on average 1.7984395318595578) internal successors, (2766), 2540 states have internal predecessors, (2766), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:19:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 4774 transitions. [2025-03-08 22:19:35,982 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 4774 transitions. Word has length 98 [2025-03-08 22:19:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:35,983 INFO L471 AbstractCegarLoop]: Abstraction has 2547 states and 4774 transitions. [2025-03-08 22:19:35,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 4774 transitions. [2025-03-08 22:19:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:19:35,985 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:35,985 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:35,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:19:35,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:35,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:35,985 INFO L85 PathProgramCache]: Analyzing trace with hash -803263995, now seen corresponding path program 1 times [2025-03-08 22:19:35,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:35,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412493480] [2025-03-08 22:19:35,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:36,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:19:36,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:19:36,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:36,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:36,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:19:36,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:36,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412493480] [2025-03-08 22:19:36,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412493480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:36,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:36,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:19:36,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866560321] [2025-03-08 22:19:36,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:36,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:19:36,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:36,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:19:36,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:19:36,160 INFO L87 Difference]: Start difference. First operand 2547 states and 4774 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:36,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:36,265 INFO L93 Difference]: Finished difference Result 2587 states and 4814 transitions. [2025-03-08 22:19:36,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:19:36,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:19:36,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:36,278 INFO L225 Difference]: With dead ends: 2587 [2025-03-08 22:19:36,278 INFO L226 Difference]: Without dead ends: 2587 [2025-03-08 22:19:36,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:19:36,279 INFO L435 NwaCegarLoop]: 2394 mSDtfsCounter, 8 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:36,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4773 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:36,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2025-03-08 22:19:36,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2587. [2025-03-08 22:19:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1578 states have (on average 1.7782002534854247) internal successors, (2806), 2580 states have internal predecessors, (2806), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:19:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 4814 transitions. [2025-03-08 22:19:36,631 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 4814 transitions. Word has length 153 [2025-03-08 22:19:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:36,631 INFO L471 AbstractCegarLoop]: Abstraction has 2587 states and 4814 transitions. [2025-03-08 22:19:36,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 4814 transitions. [2025-03-08 22:19:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:19:36,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:36,633 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:36,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:19:36,633 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:36,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 380083302, now seen corresponding path program 1 times [2025-03-08 22:19:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:36,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943794323] [2025-03-08 22:19:36,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:36,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:19:36,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:19:36,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:36,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:19:36,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:36,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943794323] [2025-03-08 22:19:36,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943794323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:36,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:36,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:36,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796670108] [2025-03-08 22:19:36,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:36,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:36,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:36,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:36,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:36,885 INFO L87 Difference]: Start difference. First operand 2587 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:36,999 INFO L93 Difference]: Finished difference Result 2463 states and 4614 transitions. [2025-03-08 22:19:36,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:19:36,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:19:36,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:37,009 INFO L225 Difference]: With dead ends: 2463 [2025-03-08 22:19:37,010 INFO L226 Difference]: Without dead ends: 2463 [2025-03-08 22:19:37,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:37,010 INFO L435 NwaCegarLoop]: 2319 mSDtfsCounter, 32 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6943 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:37,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6943 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2025-03-08 22:19:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2463. [2025-03-08 22:19:37,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 1454 states have (on average 1.7922971114167814) internal successors, (2606), 2456 states have internal predecessors, (2606), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:19:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 4614 transitions. [2025-03-08 22:19:37,207 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 4614 transitions. Word has length 153 [2025-03-08 22:19:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:37,207 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 4614 transitions. [2025-03-08 22:19:37,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 4614 transitions. [2025-03-08 22:19:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:19:37,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:37,209 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:37,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:19:37,209 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 232335743, now seen corresponding path program 1 times [2025-03-08 22:19:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:37,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355466430] [2025-03-08 22:19:37,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:37,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:37,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:19:37,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:19:37,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:37,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:37,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:37,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355466430] [2025-03-08 22:19:37,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355466430] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:37,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:37,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:19:37,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952023957] [2025-03-08 22:19:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:19:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:37,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:19:37,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:37,423 INFO L87 Difference]: Start difference. First operand 2463 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:38,718 INFO L93 Difference]: Finished difference Result 2545 states and 4720 transitions. [2025-03-08 22:19:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:19:38,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:19:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:38,732 INFO L225 Difference]: With dead ends: 2545 [2025-03-08 22:19:38,732 INFO L226 Difference]: Without dead ends: 2545 [2025-03-08 22:19:38,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:19:38,733 INFO L435 NwaCegarLoop]: 2474 mSDtfsCounter, 3767 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4268 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:38,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4268 Valid, 5503 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-08 22:19:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2025-03-08 22:19:38,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1371. [2025-03-08 22:19:38,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 862 states have (on average 1.7192575406032482) internal successors, (1482), 1364 states have internal predecessors, (1482), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:19:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2490 transitions. [2025-03-08 22:19:38,880 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2490 transitions. Word has length 153 [2025-03-08 22:19:38,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:38,880 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2490 transitions. [2025-03-08 22:19:38,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2490 transitions. [2025-03-08 22:19:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-08 22:19:38,884 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:38,884 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:38,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:19:38,884 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:38,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:38,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1037353841, now seen corresponding path program 1 times [2025-03-08 22:19:38,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:38,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959396271] [2025-03-08 22:19:38,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:38,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:38,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:19:38,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:19:38,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:38,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:39,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:39,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959396271] [2025-03-08 22:19:39,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959396271] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:19:39,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176331086] [2025-03-08 22:19:39,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:39,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:39,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:39,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:39,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:19:39,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:19:39,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:19:39,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:39,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:39,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 22:19:39,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:39,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-08 22:19:39,893 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 23 treesize of output 3 [2025-03-08 22:19:39,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:19:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:39,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:19:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:40,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176331086] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:19:40,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:19:40,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2025-03-08 22:19:40,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430841929] [2025-03-08 22:19:40,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:19:40,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 22:19:40,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:40,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 22:19:40,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:19:40,049 INFO L87 Difference]: Start difference. First operand 1371 states and 2490 transitions. Second operand has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:19:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:44,335 INFO L93 Difference]: Finished difference Result 4085 states and 7443 transitions. [2025-03-08 22:19:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 22:19:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 163 [2025-03-08 22:19:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:44,348 INFO L225 Difference]: With dead ends: 4085 [2025-03-08 22:19:44,348 INFO L226 Difference]: Without dead ends: 4085 [2025-03-08 22:19:44,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-08 22:19:44,348 INFO L435 NwaCegarLoop]: 1863 mSDtfsCounter, 8428 mSDsluCounter, 8326 mSDsCounter, 0 mSdLazyCounter, 3757 mSolverCounterSat, 2011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9432 SdHoareTripleChecker+Valid, 10189 SdHoareTripleChecker+Invalid, 5768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2011 IncrementalHoareTripleChecker+Valid, 3757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:44,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9432 Valid, 10189 Invalid, 5768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2011 Valid, 3757 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-03-08 22:19:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2025-03-08 22:19:44,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 1711. [2025-03-08 22:19:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1198 states have (on average 1.6126878130217028) internal successors, (1932), 1700 states have internal predecessors, (1932), 508 states have call successors, (508), 4 states have call predecessors, (508), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2025-03-08 22:19:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2946 transitions. [2025-03-08 22:19:44,592 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2946 transitions. Word has length 163 [2025-03-08 22:19:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:44,593 INFO L471 AbstractCegarLoop]: Abstraction has 1711 states and 2946 transitions. [2025-03-08 22:19:44,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:19:44,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2946 transitions. [2025-03-08 22:19:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2025-03-08 22:19:44,596 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:44,596 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:44,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 22:19:44,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:44,797 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:44,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1664015019, now seen corresponding path program 1 times [2025-03-08 22:19:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:44,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382523831] [2025-03-08 22:19:44,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:44,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:44,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:19:44,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:19:44,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:44,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:47,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:47,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382523831] [2025-03-08 22:19:47,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382523831] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:19:47,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343035041] [2025-03-08 22:19:47,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:47,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:47,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:47,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:47,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:19:47,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:19:47,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:19:47,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:47,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:47,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 22:19:47,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:47,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-08 22:19:47,806 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 23 treesize of output 3 [2025-03-08 22:19:47,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:19:47,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:19:48,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:19:48,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:19:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:48,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:19:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:19:48,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343035041] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:19:48,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:19:48,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2025-03-08 22:19:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792427786] [2025-03-08 22:19:48,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:19:48,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-08 22:19:48,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:48,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-08 22:19:48,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-08 22:19:48,541 INFO L87 Difference]: Start difference. First operand 1711 states and 2946 transitions. Second operand has 20 states, 20 states have (on average 38.45) internal successors, (769), 20 states have internal predecessors, (769), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:19:57,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:57,701 INFO L93 Difference]: Finished difference Result 9391 states and 17195 transitions. [2025-03-08 22:19:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-08 22:19:57,701 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 38.45) internal successors, (769), 20 states have internal predecessors, (769), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 385 [2025-03-08 22:19:57,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:57,720 INFO L225 Difference]: With dead ends: 9391 [2025-03-08 22:19:57,720 INFO L226 Difference]: Without dead ends: 9391 [2025-03-08 22:19:57,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 761 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=223, Invalid=427, Unknown=0, NotChecked=0, Total=650 [2025-03-08 22:19:57,721 INFO L435 NwaCegarLoop]: 1863 mSDtfsCounter, 24760 mSDsluCounter, 14498 mSDsCounter, 0 mSdLazyCounter, 7158 mSolverCounterSat, 4848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27770 SdHoareTripleChecker+Valid, 16361 SdHoareTripleChecker+Invalid, 12006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4848 IncrementalHoareTripleChecker+Valid, 7158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:57,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27770 Valid, 16361 Invalid, 12006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4848 Valid, 7158 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2025-03-08 22:19:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2025-03-08 22:19:58,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 2557. [2025-03-08 22:19:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2038 states have (on average 1.5014720314033365) internal successors, (3060), 2540 states have internal predecessors, (3060), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:19:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4086 transitions. [2025-03-08 22:19:58,292 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4086 transitions. Word has length 385 [2025-03-08 22:19:58,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:58,292 INFO L471 AbstractCegarLoop]: Abstraction has 2557 states and 4086 transitions. [2025-03-08 22:19:58,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 38.45) internal successors, (769), 20 states have internal predecessors, (769), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:19:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4086 transitions. [2025-03-08 22:19:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2025-03-08 22:19:58,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:58,304 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:58,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 22:19:58,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-08 22:19:58,505 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:58,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1397609501, now seen corresponding path program 2 times [2025-03-08 22:19:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:58,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557195618] [2025-03-08 22:19:58,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:19:58,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:58,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 829 statements into 2 equivalence classes. [2025-03-08 22:19:58,844 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 74 of 829 statements. [2025-03-08 22:19:58,844 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:19:58,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:19:58,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:19:58,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557195618] [2025-03-08 22:19:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557195618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:58,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:19:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706037085] [2025-03-08 22:19:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:58,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:19:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:19:58,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:19:58,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:19:58,947 INFO L87 Difference]: Start difference. First operand 2557 states and 4086 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:59,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:59,247 INFO L93 Difference]: Finished difference Result 2597 states and 4141 transitions. [2025-03-08 22:19:59,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:19:59,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 829 [2025-03-08 22:19:59,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:59,254 INFO L225 Difference]: With dead ends: 2597 [2025-03-08 22:19:59,254 INFO L226 Difference]: Without dead ends: 2597 [2025-03-08 22:19:59,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:19:59,255 INFO L435 NwaCegarLoop]: 2347 mSDtfsCounter, 80 mSDsluCounter, 9135 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 11482 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:59,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 11482 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:19:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2025-03-08 22:19:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2559. [2025-03-08 22:19:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 2040 states have (on average 1.5009803921568627) internal successors, (3062), 2542 states have internal predecessors, (3062), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:19:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 4088 transitions. [2025-03-08 22:19:59,349 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 4088 transitions. Word has length 829 [2025-03-08 22:19:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:59,350 INFO L471 AbstractCegarLoop]: Abstraction has 2559 states and 4088 transitions. [2025-03-08 22:19:59,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:19:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 4088 transitions. [2025-03-08 22:19:59,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2025-03-08 22:19:59,364 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:59,364 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:59,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 22:19:59,365 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:59,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1427681895, now seen corresponding path program 1 times [2025-03-08 22:19:59,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:19:59,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620647555] [2025-03-08 22:19:59,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:59,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:19:59,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-03-08 22:19:59,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-03-08 22:19:59,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:59,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:20:01,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:20:01,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620647555] [2025-03-08 22:20:01,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620647555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:01,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:01,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:20:01,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896685373] [2025-03-08 22:20:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:01,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:20:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:20:01,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:20:01,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:20:01,684 INFO L87 Difference]: Start difference. First operand 2559 states and 4088 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:01,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:01,978 INFO L93 Difference]: Finished difference Result 2564 states and 4094 transitions. [2025-03-08 22:20:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:20:01,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 830 [2025-03-08 22:20:01,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:01,985 INFO L225 Difference]: With dead ends: 2564 [2025-03-08 22:20:01,985 INFO L226 Difference]: Without dead ends: 2564 [2025-03-08 22:20:01,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:20:01,986 INFO L435 NwaCegarLoop]: 2327 mSDtfsCounter, 14 mSDsluCounter, 9040 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11367 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:01,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11367 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:20:01,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2025-03-08 22:20:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2563. [2025-03-08 22:20:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2044 states have (on average 1.5004892367906066) internal successors, (3067), 2546 states have internal predecessors, (3067), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:20:02,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4093 transitions. [2025-03-08 22:20:02,081 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4093 transitions. Word has length 830 [2025-03-08 22:20:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:02,082 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4093 transitions. [2025-03-08 22:20:02,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4093 transitions. [2025-03-08 22:20:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2025-03-08 22:20:02,088 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:02,088 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:02,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 22:20:02,088 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:02,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash 885550340, now seen corresponding path program 1 times [2025-03-08 22:20:02,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:20:02,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535370937] [2025-03-08 22:20:02,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:02,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:20:02,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 831 statements into 1 equivalence classes. [2025-03-08 22:20:02,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 831 of 831 statements. [2025-03-08 22:20:02,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:02,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:20:04,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:20:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535370937] [2025-03-08 22:20:04,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535370937] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:04,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:04,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 22:20:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288296295] [2025-03-08 22:20:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:04,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 22:20:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:20:04,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 22:20:04,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:20:04,155 INFO L87 Difference]: Start difference. First operand 2563 states and 4093 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:04,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:04,552 INFO L93 Difference]: Finished difference Result 2574 states and 4106 transitions. [2025-03-08 22:20:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:20:04,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 831 [2025-03-08 22:20:04,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:04,559 INFO L225 Difference]: With dead ends: 2574 [2025-03-08 22:20:04,559 INFO L226 Difference]: Without dead ends: 2574 [2025-03-08 22:20:04,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:20:04,559 INFO L435 NwaCegarLoop]: 2328 mSDtfsCounter, 31 mSDsluCounter, 15920 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 18248 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:04,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 18248 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:20:04,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2025-03-08 22:20:04,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2571. [2025-03-08 22:20:04,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2052 states have (on average 1.4990253411306043) internal successors, (3076), 2554 states have internal predecessors, (3076), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:20:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4102 transitions. [2025-03-08 22:20:04,646 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4102 transitions. Word has length 831 [2025-03-08 22:20:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:04,647 INFO L471 AbstractCegarLoop]: Abstraction has 2571 states and 4102 transitions. [2025-03-08 22:20:04,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4102 transitions. [2025-03-08 22:20:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2025-03-08 22:20:04,652 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:04,653 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:04,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 22:20:04,653 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:04,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:04,654 INFO L85 PathProgramCache]: Analyzing trace with hash 900808073, now seen corresponding path program 1 times [2025-03-08 22:20:04,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:20:04,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483817821] [2025-03-08 22:20:04,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:04,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:20:04,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:20:05,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:20:05,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:05,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:20:13,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:20:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483817821] [2025-03-08 22:20:13,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483817821] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:20:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314997420] [2025-03-08 22:20:13,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:13,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:13,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:13,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:20:13,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:20:13,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:20:14,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:20:14,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:14,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:14,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-08 22:20:14,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:14,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-08 22:20:14,481 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 23 treesize of output 3 [2025-03-08 22:20:14,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:14,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:14,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:14,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:14,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:14,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:14,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:15,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:15,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:20:15,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-08 22:20:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:20:15,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:20:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:20:15,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314997420] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:20:15,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:20:15,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 15, 14] total 38 [2025-03-08 22:20:15,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839535908] [2025-03-08 22:20:15,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:20:15,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-03-08 22:20:15,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:20:15,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-03-08 22:20:15,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=836, Unknown=0, NotChecked=0, Total=1406 [2025-03-08 22:20:15,995 INFO L87 Difference]: Start difference. First operand 2571 states and 4102 transitions. Second operand has 38 states, 38 states have (on average 44.0) internal successors, (1672), 38 states have internal predecessors, (1672), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:20:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:33,109 INFO L93 Difference]: Finished difference Result 17955 states and 32601 transitions. [2025-03-08 22:20:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-08 22:20:33,109 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 44.0) internal successors, (1672), 38 states have internal predecessors, (1672), 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 832 [2025-03-08 22:20:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:33,146 INFO L225 Difference]: With dead ends: 17955 [2025-03-08 22:20:33,146 INFO L226 Difference]: Without dead ends: 17955 [2025-03-08 22:20:33,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1702 GetRequests, 1651 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=871, Invalid=1579, Unknown=0, NotChecked=0, Total=2450 [2025-03-08 22:20:33,147 INFO L435 NwaCegarLoop]: 1862 mSDtfsCounter, 43957 mSDsluCounter, 25796 mSDsCounter, 0 mSdLazyCounter, 13437 mSolverCounterSat, 8606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49979 SdHoareTripleChecker+Valid, 27658 SdHoareTripleChecker+Invalid, 22043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8606 IncrementalHoareTripleChecker+Valid, 13437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:33,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49979 Valid, 27658 Invalid, 22043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8606 Valid, 13437 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2025-03-08 22:20:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17955 states. [2025-03-08 22:20:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17955 to 4263. [2025-03-08 22:20:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 3732 states have (on average 1.4287245444801715) internal successors, (5332), 4234 states have internal predecessors, (5332), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-08 22:20:34,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 6382 transitions. [2025-03-08 22:20:34,197 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 6382 transitions. Word has length 832 [2025-03-08 22:20:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:34,199 INFO L471 AbstractCegarLoop]: Abstraction has 4263 states and 6382 transitions. [2025-03-08 22:20:34,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 44.0) internal successors, (1672), 38 states have internal predecessors, (1672), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:20:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 6382 transitions. [2025-03-08 22:20:34,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2025-03-08 22:20:34,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:34,216 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:34,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 22:20:34,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:34,417 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:34,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:34,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1954412039, now seen corresponding path program 2 times [2025-03-08 22:20:34,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:20:34,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160037480] [2025-03-08 22:20:34,418 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:20:34,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:20:34,773 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1720 statements into 2 equivalence classes. [2025-03-08 22:20:34,924 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 77 of 1720 statements. [2025-03-08 22:20:34,924 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:20:34,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-08 22:20:35,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:20:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160037480] [2025-03-08 22:20:35,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160037480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:35,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:35,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-08 22:20:35,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389732232] [2025-03-08 22:20:35,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:35,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-08 22:20:35,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:20:35,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-08 22:20:35,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2025-03-08 22:20:35,299 INFO L87 Difference]: Start difference. First operand 4263 states and 6382 transitions. Second operand has 17 states, 17 states have (on average 9.411764705882353) internal successors, (160), 17 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:36,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:36,119 INFO L93 Difference]: Finished difference Result 4299 states and 6438 transitions. [2025-03-08 22:20:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 22:20:36,120 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.411764705882353) internal successors, (160), 17 states have internal predecessors, (160), 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 1720 [2025-03-08 22:20:36,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:36,127 INFO L225 Difference]: With dead ends: 4299 [2025-03-08 22:20:36,127 INFO L226 Difference]: Without dead ends: 4299 [2025-03-08 22:20:36,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2025-03-08 22:20:36,128 INFO L435 NwaCegarLoop]: 2290 mSDtfsCounter, 47 mSDsluCounter, 33921 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 36211 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:36,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 36211 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 22:20:36,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2025-03-08 22:20:36,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 4275. [2025-03-08 22:20:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 3744 states have (on average 1.4286858974358974) internal successors, (5349), 4246 states have internal predecessors, (5349), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-08 22:20:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 6399 transitions. [2025-03-08 22:20:36,220 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 6399 transitions. Word has length 1720 [2025-03-08 22:20:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:36,222 INFO L471 AbstractCegarLoop]: Abstraction has 4275 states and 6399 transitions. [2025-03-08 22:20:36,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.411764705882353) internal successors, (160), 17 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 6399 transitions. [2025-03-08 22:20:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2025-03-08 22:20:36,237 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:36,238 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:36,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 22:20:36,238 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:36,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1668033562, now seen corresponding path program 1 times [2025-03-08 22:20:36,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:20:36,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041548182] [2025-03-08 22:20:36,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:36,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:20:36,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1720 statements into 1 equivalence classes. [2025-03-08 22:20:37,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1720 of 1720 statements. [2025-03-08 22:20:37,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:37,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-08 22:20:39,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:20:39,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041548182] [2025-03-08 22:20:39,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041548182] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:39,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:39,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:20:39,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355014205] [2025-03-08 22:20:39,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:39,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:20:39,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:20:39,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:20:39,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:20:39,469 INFO L87 Difference]: Start difference. First operand 4275 states and 6399 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:39,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:39,616 INFO L93 Difference]: Finished difference Result 4278 states and 6402 transitions. [2025-03-08 22:20:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:20:39,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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 1720 [2025-03-08 22:20:39,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:39,625 INFO L225 Difference]: With dead ends: 4278 [2025-03-08 22:20:39,625 INFO L226 Difference]: Without dead ends: 4278 [2025-03-08 22:20:39,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:20:39,626 INFO L435 NwaCegarLoop]: 2330 mSDtfsCounter, 8 mSDsluCounter, 6813 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9143 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:39,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9143 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:20:39,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2025-03-08 22:20:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 4278. [2025-03-08 22:20:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 3747 states have (on average 1.4283426741393115) internal successors, (5352), 4249 states have internal predecessors, (5352), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-08 22:20:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 6402 transitions. [2025-03-08 22:20:39,720 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 6402 transitions. Word has length 1720 [2025-03-08 22:20:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:39,721 INFO L471 AbstractCegarLoop]: Abstraction has 4278 states and 6402 transitions. [2025-03-08 22:20:39,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 6402 transitions. [2025-03-08 22:20:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1722 [2025-03-08 22:20:39,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:39,737 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2025-03-08 22:20:39,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 22:20:39,737 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:39,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:39,738 INFO L85 PathProgramCache]: Analyzing trace with hash -527607541, now seen corresponding path program 1 times [2025-03-08 22:20:39,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:20:39,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141097991] [2025-03-08 22:20:39,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:39,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:20:40,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1721 statements into 1 equivalence classes. [2025-03-08 22:20:40,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1721 of 1721 statements. [2025-03-08 22:20:40,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:40,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat