./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 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_SFH_test2-1.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 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:34:33,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:34:33,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:34:33,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:34:33,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:34:33,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:34:33,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:34:33,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:34:33,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:34:33,696 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:34:33,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:34:33,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:34:33,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:34:33,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:34:33,697 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:34:33,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:34:33,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:34:33,697 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:34:33,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:34:33,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:34:33,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:34:33,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:34:33,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:34:33,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:34:33,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:34:33,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:34:33,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:34:33,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:34:33,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:34:33,700 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 -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2025-03-08 22:34:33,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:34:33,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:34:33,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:34:33,942 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:34:33,942 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:34:33,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2025-03-08 22:34:35,129 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c8ec4a0/4b1311305e9a4aa7b99d8871ed6967db/FLAG9da501849 [2025-03-08 22:34:35,441 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:34:35,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2025-03-08 22:34:35,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c8ec4a0/4b1311305e9a4aa7b99d8871ed6967db/FLAG9da501849 [2025-03-08 22:34:35,476 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c8ec4a0/4b1311305e9a4aa7b99d8871ed6967db [2025-03-08 22:34:35,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:34:35,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:34:35,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:34:35,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:34:35,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:34:35,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:35,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efc62f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35, skipping insertion in model container [2025-03-08 22:34:35,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:35,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:34:35,772 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 22:34:35,796 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 22:34:35,799 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 22:34:35,800 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 22:34:35,805 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 22:34:35,828 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 22:34:35,828 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 22:34:35,831 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 22:34:35,831 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 22:34:35,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:34:35,849 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:34:35,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:34:35,950 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:34:35,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35 WrapperNode [2025-03-08 22:34:35,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:34:35,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:34:35,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:34:35,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:34:35,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:35,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,025 INFO L138 Inliner]: procedures = 208, calls = 229, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1264 [2025-03-08 22:34:36,025 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:34:36,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:34:36,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:34:36,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:34:36,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,089 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 22:34:36,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,114 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:34:36,136 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:34:36,136 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:34:36,137 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:34:36,137 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (1/1) ... [2025-03-08 22:34:36,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:34:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:34:36,164 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 22:34:36,166 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 22:34:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-08 22:34:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-08 22:34:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:34:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:34:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 22:34:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:34:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:34:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 22:34:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:34:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 22:34:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 22:34:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:34:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:34:36,323 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:34:36,324 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:34:37,928 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L812: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-08 22:34:38,001 INFO L? ?]: Removed 304 outVars from TransFormulas that were not future-live. [2025-03-08 22:34:38,001 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:34:38,053 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:34:38,053 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-08 22:34:38,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:34:38 BoogieIcfgContainer [2025-03-08 22:34:38,054 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:34:38,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:34:38,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:34:38,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:34:38,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:34:35" (1/3) ... [2025-03-08 22:34:38,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd937f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:34:38, skipping insertion in model container [2025-03-08 22:34:38,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:34:35" (2/3) ... [2025-03-08 22:34:38,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd937f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:34:38, skipping insertion in model container [2025-03-08 22:34:38,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:34:38" (3/3) ... [2025-03-08 22:34:38,062 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-1.i [2025-03-08 22:34:38,073 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:34:38,075 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test2-1.i that has 6 procedures, 388 locations, 1 initial locations, 31 loop locations, and 2 error locations. [2025-03-08 22:34:38,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:34:38,129 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;@68e113db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:34:38,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:34:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 364 states have (on average 1.620879120879121) internal successors, (590), 373 states have internal predecessors, (590), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-08 22:34:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 22:34:38,137 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:38,138 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:34:38,138 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:38,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:38,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1988809201, now seen corresponding path program 1 times [2025-03-08 22:34:38,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:38,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385947293] [2025-03-08 22:34:38,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:38,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:38,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 22:34:38,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 22:34:38,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:38,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:38,254 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 22:34:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385947293] [2025-03-08 22:34:38,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385947293] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:38,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:38,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:34:38,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462927891] [2025-03-08 22:34:38,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:38,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:34:38,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:38,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:34:38,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:34:38,279 INFO L87 Difference]: Start difference. First operand has 380 states, 364 states have (on average 1.620879120879121) internal successors, (590), 373 states have internal predecessors, (590), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) 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 22:34:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:38,384 INFO L93 Difference]: Finished difference Result 378 states and 551 transitions. [2025-03-08 22:34:38,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:34:38,386 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 22:34:38,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:38,395 INFO L225 Difference]: With dead ends: 378 [2025-03-08 22:34:38,396 INFO L226 Difference]: Without dead ends: 376 [2025-03-08 22:34:38,397 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 22:34:38,399 INFO L435 NwaCegarLoop]: 510 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, 510 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 22:34:38,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 510 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:34:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-03-08 22:34:38,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2025-03-08 22:34:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 362 states have (on average 1.4668508287292819) internal successors, (531), 369 states have internal predecessors, (531), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 22:34:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 549 transitions. [2025-03-08 22:34:38,456 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 549 transitions. Word has length 7 [2025-03-08 22:34:38,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:38,456 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 549 transitions. [2025-03-08 22:34:38,456 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 22:34:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 549 transitions. [2025-03-08 22:34:38,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-08 22:34:38,457 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:38,457 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:34:38,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:34:38,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:38,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:38,458 INFO L85 PathProgramCache]: Analyzing trace with hash 52426882, now seen corresponding path program 1 times [2025-03-08 22:34:38,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:38,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170680439] [2025-03-08 22:34:38,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:38,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:38,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-08 22:34:38,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-08 22:34:38,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:38,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:38,599 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 22:34:38,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:38,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170680439] [2025-03-08 22:34:38,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170680439] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:38,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:38,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:34:38,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409109117] [2025-03-08 22:34:38,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:38,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:34:38,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:38,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:34:38,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:34:38,604 INFO L87 Difference]: Start difference. First operand 376 states and 549 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 22:34:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:38,835 INFO L93 Difference]: Finished difference Result 735 states and 1082 transitions. [2025-03-08 22:34:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:34:38,835 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 22:34:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:38,838 INFO L225 Difference]: With dead ends: 735 [2025-03-08 22:34:38,840 INFO L226 Difference]: Without dead ends: 735 [2025-03-08 22:34:38,840 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 22:34:38,842 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 513 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:34:38,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1454 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:34:38,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2025-03-08 22:34:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 378. [2025-03-08 22:34:38,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 364 states have (on average 1.4642857142857142) internal successors, (533), 371 states have internal predecessors, (533), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 22:34:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 551 transitions. [2025-03-08 22:34:38,865 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 551 transitions. Word has length 9 [2025-03-08 22:34:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:38,865 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 551 transitions. [2025-03-08 22:34:38,865 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 22:34:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 551 transitions. [2025-03-08 22:34:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:34:38,867 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:38,867 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 22:34:38,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:34:38,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:38,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:38,868 INFO L85 PathProgramCache]: Analyzing trace with hash 443517085, now seen corresponding path program 1 times [2025-03-08 22:34:38,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:38,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361496060] [2025-03-08 22:34:38,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:38,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:38,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:34:38,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:34:38,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:38,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:39,213 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 22:34:39,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:39,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361496060] [2025-03-08 22:34:39,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361496060] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:39,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:39,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:34:39,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286183986] [2025-03-08 22:34:39,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:34:39,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:39,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:34:39,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:34:39,216 INFO L87 Difference]: Start difference. First operand 378 states and 551 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 22:34:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:39,364 INFO L93 Difference]: Finished difference Result 336 states and 474 transitions. [2025-03-08 22:34:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:34:39,365 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 22:34:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:39,366 INFO L225 Difference]: With dead ends: 336 [2025-03-08 22:34:39,366 INFO L226 Difference]: Without dead ends: 336 [2025-03-08 22:34:39,366 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 22:34:39,367 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 30 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1229 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 22:34:39,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1229 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:34:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2025-03-08 22:34:39,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2025-03-08 22:34:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 322 states have (on average 1.4161490683229814) internal successors, (456), 329 states have internal predecessors, (456), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 22:34:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 474 transitions. [2025-03-08 22:34:39,376 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 474 transitions. Word has length 83 [2025-03-08 22:34:39,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:39,376 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 474 transitions. [2025-03-08 22:34:39,376 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 22:34:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 474 transitions. [2025-03-08 22:34:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:34:39,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:39,378 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 22:34:39,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:34:39,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:39,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash 155750198, now seen corresponding path program 1 times [2025-03-08 22:34:39,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:39,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413356197] [2025-03-08 22:34:39,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:39,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:39,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:34:39,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:34:39,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:39,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:39,560 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 22:34:39,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413356197] [2025-03-08 22:34:39,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413356197] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:39,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:39,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:34:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861041069] [2025-03-08 22:34:39,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:39,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:34:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:39,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:34:39,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:34:39,561 INFO L87 Difference]: Start difference. First operand 336 states and 474 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 22:34:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:39,699 INFO L93 Difference]: Finished difference Result 569 states and 815 transitions. [2025-03-08 22:34:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:34:39,700 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 22:34:39,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:39,702 INFO L225 Difference]: With dead ends: 569 [2025-03-08 22:34:39,702 INFO L226 Difference]: Without dead ends: 569 [2025-03-08 22:34:39,702 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 22:34:39,703 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 271 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1032 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 22:34:39,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1032 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:34:39,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2025-03-08 22:34:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 565. [2025-03-08 22:34:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 546 states have (on average 1.435897435897436) internal successors, (784), 558 states have internal predecessors, (784), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:34:39,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 812 transitions. [2025-03-08 22:34:39,730 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 812 transitions. Word has length 83 [2025-03-08 22:34:39,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:39,730 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 812 transitions. [2025-03-08 22:34:39,730 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 22:34:39,731 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 812 transitions. [2025-03-08 22:34:39,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-08 22:34:39,735 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:39,735 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 22:34:39,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:34:39,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:39,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:39,737 INFO L85 PathProgramCache]: Analyzing trace with hash -138357727, now seen corresponding path program 1 times [2025-03-08 22:34:39,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:39,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900999197] [2025-03-08 22:34:39,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:39,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:39,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:34:39,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:34:39,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:39,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:40,102 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 22:34:40,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:40,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900999197] [2025-03-08 22:34:40,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900999197] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:40,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:40,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:34:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791581582] [2025-03-08 22:34:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:40,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:34:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:40,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:34:40,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:34:40,103 INFO L87 Difference]: Start difference. First operand 565 states and 812 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 22:34:40,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:40,270 INFO L93 Difference]: Finished difference Result 809 states and 1173 transitions. [2025-03-08 22:34:40,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:34:40,271 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 22:34:40,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:40,274 INFO L225 Difference]: With dead ends: 809 [2025-03-08 22:34:40,274 INFO L226 Difference]: Without dead ends: 809 [2025-03-08 22:34:40,274 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 22:34:40,278 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 426 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:34:40,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1234 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:34:40,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2025-03-08 22:34:40,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 567. [2025-03-08 22:34:40,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 548 states have (on average 1.4343065693430657) internal successors, (786), 560 states have internal predecessors, (786), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:34:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 814 transitions. [2025-03-08 22:34:40,297 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 814 transitions. Word has length 98 [2025-03-08 22:34:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:40,298 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 814 transitions. [2025-03-08 22:34:40,298 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 22:34:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 814 transitions. [2025-03-08 22:34:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:34:40,301 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:40,301 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 22:34:40,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:34:40,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:40,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash 395548429, now seen corresponding path program 1 times [2025-03-08 22:34:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:40,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117004893] [2025-03-08 22:34:40,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:40,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:34:40,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:34:40,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:40,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:40,500 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 22:34:40,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:40,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117004893] [2025-03-08 22:34:40,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117004893] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:40,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:40,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:34:40,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643595857] [2025-03-08 22:34:40,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:40,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:34:40,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:40,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:34:40,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:34:40,502 INFO L87 Difference]: Start difference. First operand 567 states and 814 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 22:34:40,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:40,599 INFO L93 Difference]: Finished difference Result 607 states and 854 transitions. [2025-03-08 22:34:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:34:40,599 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 22:34:40,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:40,601 INFO L225 Difference]: With dead ends: 607 [2025-03-08 22:34:40,601 INFO L226 Difference]: Without dead ends: 607 [2025-03-08 22:34:40,602 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 22:34:40,602 INFO L435 NwaCegarLoop]: 414 mSDtfsCounter, 8 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 813 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 22:34:40,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 813 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:34:40,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2025-03-08 22:34:40,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2025-03-08 22:34:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 588 states have (on average 1.4047619047619047) internal successors, (826), 600 states have internal predecessors, (826), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:34:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 854 transitions. [2025-03-08 22:34:40,618 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 854 transitions. Word has length 153 [2025-03-08 22:34:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:40,619 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 854 transitions. [2025-03-08 22:34:40,619 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 22:34:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 854 transitions. [2025-03-08 22:34:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:34:40,621 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:40,621 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 22:34:40,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:34:40,621 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:40,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash 271475182, now seen corresponding path program 1 times [2025-03-08 22:34:40,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:40,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440144617] [2025-03-08 22:34:40,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:40,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:34:40,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:34:40,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:40,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:40,842 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 22:34:40,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:40,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440144617] [2025-03-08 22:34:40,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440144617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:40,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:40,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:34:40,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947160472] [2025-03-08 22:34:40,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:40,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:34:40,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:40,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:34:40,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:34:40,844 INFO L87 Difference]: Start difference. First operand 607 states and 854 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 22:34:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:40,938 INFO L93 Difference]: Finished difference Result 483 states and 654 transitions. [2025-03-08 22:34:40,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:34:40,939 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 22:34:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:40,941 INFO L225 Difference]: With dead ends: 483 [2025-03-08 22:34:40,941 INFO L226 Difference]: Without dead ends: 483 [2025-03-08 22:34:40,941 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 22:34:40,942 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 32 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1003 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 22:34:40,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1003 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:34:40,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2025-03-08 22:34:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2025-03-08 22:34:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 464 states have (on average 1.3491379310344827) internal successors, (626), 476 states have internal predecessors, (626), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:34:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 654 transitions. [2025-03-08 22:34:40,956 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 654 transitions. Word has length 153 [2025-03-08 22:34:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:40,956 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 654 transitions. [2025-03-08 22:34:40,956 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 22:34:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 654 transitions. [2025-03-08 22:34:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:34:40,958 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:40,958 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 22:34:40,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:34:40,958 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:40,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:40,959 INFO L85 PathProgramCache]: Analyzing trace with hash 123727623, now seen corresponding path program 1 times [2025-03-08 22:34:40,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:40,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787847758] [2025-03-08 22:34:40,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:40,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:40,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:34:41,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:34:41,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:41,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:41,168 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 22:34:41,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:41,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787847758] [2025-03-08 22:34:41,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787847758] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:41,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:41,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:34:41,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437820586] [2025-03-08 22:34:41,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:41,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:34:41,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:41,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:34:41,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:34:41,171 INFO L87 Difference]: Start difference. First operand 483 states and 654 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 22:34:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:41,492 INFO L93 Difference]: Finished difference Result 565 states and 760 transitions. [2025-03-08 22:34:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:34:41,493 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 22:34:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:41,495 INFO L225 Difference]: With dead ends: 565 [2025-03-08 22:34:41,495 INFO L226 Difference]: Without dead ends: 565 [2025-03-08 22:34:41,496 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 22:34:41,496 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 1179 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:34:41,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 857 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:34:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2025-03-08 22:34:41,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 381. [2025-03-08 22:34:41,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 367 states have (on average 1.340599455040872) internal successors, (492), 374 states have internal predecessors, (492), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 22:34:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 510 transitions. [2025-03-08 22:34:41,507 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 510 transitions. Word has length 153 [2025-03-08 22:34:41,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:41,507 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 510 transitions. [2025-03-08 22:34:41,507 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 22:34:41,507 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 510 transitions. [2025-03-08 22:34:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-08 22:34:41,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:41,508 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 22:34:41,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:34:41,508 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1058877127, now seen corresponding path program 1 times [2025-03-08 22:34:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:41,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003177591] [2025-03-08 22:34:41,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:41,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:34:41,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:34:41,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:41,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:42,120 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 22:34:42,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:42,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003177591] [2025-03-08 22:34:42,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003177591] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:34:42,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870692966] [2025-03-08 22:34:42,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:42,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:34:42,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:34:42,123 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 22:34:42,124 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 22:34:42,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:34:42,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:34:42,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:42,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:42,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 22:34:42,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:34:42,440 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 22:34:42,607 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 22:34:42,611 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 22:34:42,622 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 22:34:42,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:34:42,781 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 22:34:42,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870692966] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:34:42,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:34:42,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2025-03-08 22:34:42,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771216365] [2025-03-08 22:34:42,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:34:42,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 22:34:42,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:42,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 22:34:42,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:34:42,785 INFO L87 Difference]: Start difference. First operand 381 states and 510 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 22:34:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:43,158 INFO L93 Difference]: Finished difference Result 1115 states and 1503 transitions. [2025-03-08 22:34:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 22:34:43,158 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 22:34:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:43,162 INFO L225 Difference]: With dead ends: 1115 [2025-03-08 22:34:43,162 INFO L226 Difference]: Without dead ends: 1115 [2025-03-08 22:34:43,162 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 22:34:43,163 INFO L435 NwaCegarLoop]: 378 mSDtfsCounter, 1013 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:34:43,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 3076 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:34:43,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2025-03-08 22:34:43,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 721. [2025-03-08 22:34:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 703 states have (on average 1.3399715504978662) internal successors, (942), 710 states have internal predecessors, (942), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-08 22:34:43,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 966 transitions. [2025-03-08 22:34:43,177 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 966 transitions. Word has length 163 [2025-03-08 22:34:43,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:43,177 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 966 transitions. [2025-03-08 22:34:43,177 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 22:34:43,178 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 966 transitions. [2025-03-08 22:34:43,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2025-03-08 22:34:43,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:43,181 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 22:34:43,189 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 22:34:43,381 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 22:34:43,382 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:43,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:43,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2111675427, now seen corresponding path program 1 times [2025-03-08 22:34:43,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:43,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692444994] [2025-03-08 22:34:43,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:43,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:43,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:34:43,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:34:43,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:43,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:45,968 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 22:34:45,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:45,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692444994] [2025-03-08 22:34:45,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692444994] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:34:45,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894669182] [2025-03-08 22:34:45,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:45,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:34:45,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:34:45,971 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 22:34:45,973 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 22:34:46,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:34:46,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:34:46,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:46,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:46,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 22:34:46,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:34:46,499 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 22:34:46,654 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 22:34:46,745 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 22:34:46,829 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 22:34:46,922 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 22:34:46,926 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 22:34:46,930 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 22:34:46,930 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:34:47,328 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 22:34:47,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894669182] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:34:47,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:34:47,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2025-03-08 22:34:47,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948616884] [2025-03-08 22:34:47,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:34:47,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-08 22:34:47,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:47,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-08 22:34:47,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-08 22:34:47,331 INFO L87 Difference]: Start difference. First operand 721 states and 966 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 22:34:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:48,035 INFO L93 Difference]: Finished difference Result 2336 states and 3162 transitions. [2025-03-08 22:34:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-08 22:34:48,036 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 22:34:48,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:48,044 INFO L225 Difference]: With dead ends: 2336 [2025-03-08 22:34:48,044 INFO L226 Difference]: Without dead ends: 2336 [2025-03-08 22:34:48,045 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 22:34:48,046 INFO L435 NwaCegarLoop]: 378 mSDtfsCounter, 4698 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4733 SdHoareTripleChecker+Valid, 5369 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:34:48,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4733 Valid, 5369 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 22:34:48,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2025-03-08 22:34:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 1567. [2025-03-08 22:34:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1543 states have (on average 1.3415424497731692) internal successors, (2070), 1550 states have internal predecessors, (2070), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-08 22:34:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2106 transitions. [2025-03-08 22:34:48,079 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2106 transitions. Word has length 385 [2025-03-08 22:34:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:48,080 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2106 transitions. [2025-03-08 22:34:48,081 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 22:34:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2106 transitions. [2025-03-08 22:34:48,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2025-03-08 22:34:48,092 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:48,092 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 22:34:48,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 22:34:48,297 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 22:34:48,297 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:48,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1648493605, now seen corresponding path program 2 times [2025-03-08 22:34:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:48,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273740776] [2025-03-08 22:34:48,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:34:48,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:48,500 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 829 statements into 2 equivalence classes. [2025-03-08 22:34:48,524 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 74 of 829 statements. [2025-03-08 22:34:48,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:34:48,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:48,620 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 22:34:48,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:48,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273740776] [2025-03-08 22:34:48,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273740776] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:48,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:48,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:34:48,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635433585] [2025-03-08 22:34:48,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:48,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:34:48,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:48,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:34:48,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:34:48,623 INFO L87 Difference]: Start difference. First operand 1567 states and 2106 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 22:34:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:48,910 INFO L93 Difference]: Finished difference Result 1607 states and 2161 transitions. [2025-03-08 22:34:48,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:34:48,911 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 22:34:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:48,916 INFO L225 Difference]: With dead ends: 1607 [2025-03-08 22:34:48,916 INFO L226 Difference]: Without dead ends: 1607 [2025-03-08 22:34:48,916 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 22:34:48,916 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 80 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1582 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 22:34:48,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1582 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:34:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2025-03-08 22:34:48,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1569. [2025-03-08 22:34:48,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1545 states have (on average 1.3411003236245955) internal successors, (2072), 1552 states have internal predecessors, (2072), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-08 22:34:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2108 transitions. [2025-03-08 22:34:48,937 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2108 transitions. Word has length 829 [2025-03-08 22:34:48,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:48,938 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2108 transitions. [2025-03-08 22:34:48,938 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 22:34:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2108 transitions. [2025-03-08 22:34:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2025-03-08 22:34:48,951 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:48,951 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 22:34:48,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 22:34:48,951 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:48,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:48,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2080445563, now seen corresponding path program 1 times [2025-03-08 22:34:48,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:48,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177968930] [2025-03-08 22:34:48,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:48,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:49,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-03-08 22:34:49,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-03-08 22:34:49,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:49,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:51,215 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 22:34:51,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:51,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177968930] [2025-03-08 22:34:51,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177968930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:51,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:51,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:34:51,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989873447] [2025-03-08 22:34:51,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:51,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:34:51,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:51,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:34:51,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:34:51,217 INFO L87 Difference]: Start difference. First operand 1569 states and 2108 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 22:34:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:51,506 INFO L93 Difference]: Finished difference Result 1574 states and 2114 transitions. [2025-03-08 22:34:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:34:51,508 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 22:34:51,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:51,514 INFO L225 Difference]: With dead ends: 1574 [2025-03-08 22:34:51,515 INFO L226 Difference]: Without dead ends: 1574 [2025-03-08 22:34:51,515 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 22:34:51,515 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 14 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1467 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 22:34:51,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1467 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:34:51,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2025-03-08 22:34:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1573. [2025-03-08 22:34:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1549 states have (on average 1.340865074241446) internal successors, (2077), 1556 states have internal predecessors, (2077), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-08 22:34:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2113 transitions. [2025-03-08 22:34:51,543 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2113 transitions. Word has length 830 [2025-03-08 22:34:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:51,545 INFO L471 AbstractCegarLoop]: Abstraction has 1573 states and 2113 transitions. [2025-03-08 22:34:51,545 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 22:34:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2113 transitions. [2025-03-08 22:34:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2025-03-08 22:34:51,554 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:51,554 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 22:34:51,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 22:34:51,554 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:51,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:51,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2005960628, now seen corresponding path program 1 times [2025-03-08 22:34:51,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:51,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440765165] [2025-03-08 22:34:51,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:51,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:51,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 831 statements into 1 equivalence classes. [2025-03-08 22:34:51,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 831 of 831 statements. [2025-03-08 22:34:51,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:34:51,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:34:53,379 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 22:34:53,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:34:53,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440765165] [2025-03-08 22:34:53,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440765165] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:34:53,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:34:53,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 22:34:53,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020498157] [2025-03-08 22:34:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:34:53,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 22:34:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:34:53,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 22:34:53,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:34:53,381 INFO L87 Difference]: Start difference. First operand 1573 states and 2113 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 22:34:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:34:53,793 INFO L93 Difference]: Finished difference Result 1584 states and 2126 transitions. [2025-03-08 22:34:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:34:53,795 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 22:34:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:34:53,800 INFO L225 Difference]: With dead ends: 1584 [2025-03-08 22:34:53,800 INFO L226 Difference]: Without dead ends: 1584 [2025-03-08 22:34:53,800 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 22:34:53,801 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 31 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:34:53,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2408 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:34:53,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2025-03-08 22:34:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1581. [2025-03-08 22:34:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1557 states have (on average 1.3397559409120103) internal successors, (2086), 1564 states have internal predecessors, (2086), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-08 22:34:53,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2122 transitions. [2025-03-08 22:34:53,823 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2122 transitions. Word has length 831 [2025-03-08 22:34:53,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:34:53,823 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2122 transitions. [2025-03-08 22:34:53,824 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 22:34:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2122 transitions. [2025-03-08 22:34:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2025-03-08 22:34:53,828 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:34:53,829 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 22:34:53,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 22:34:53,829 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:34:53,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:34:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1321147861, now seen corresponding path program 1 times [2025-03-08 22:34:53,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:34:53,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534934478] [2025-03-08 22:34:53,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:34:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:34:53,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:36:03,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:36:03,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:03,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 488 proven. 3 refuted. 0 times theorem prover too weak. 2845 trivial. 0 not checked. [2025-03-08 22:36:04,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534934478] [2025-03-08 22:36:04,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534934478] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:36:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872446840] [2025-03-08 22:36:04,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:04,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:04,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:04,157 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 22:36:04,159 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 22:36:04,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:36:05,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:36:05,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:05,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:05,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-08 22:36:05,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 3037 trivial. 0 not checked. [2025-03-08 22:36:05,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:05,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872446840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:05,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 22:36:05,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2025-03-08 22:36:05,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377144029] [2025-03-08 22:36:05,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:05,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:36:05,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:05,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:36:05,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:36:05,526 INFO L87 Difference]: Start difference. First operand 1581 states and 2122 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)