./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:50:20,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:50:20,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-10 14:50:20,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:50:20,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:50:20,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:50:20,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:50:20,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:50:20,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 14:50:20,860 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 14:50:20,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:50:20,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:50:20,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:50:20,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:50:20,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:50:20,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:50:20,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:50:20,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:50:20,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:50:20,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:50:20,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:50:20,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:50:20,868 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 14:50:20,868 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 14:50:20,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:50:20,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:50:20,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 14:50:20,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:50:20,870 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:50:20,870 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:50:20,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:50:20,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:50:20,871 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:50:20,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:50:20,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 14:50:20,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:50:20,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:50:20,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:50:20,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:50:20,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:50:20,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:50:20,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:50:20,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:50:20,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:50:20,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:50:20,874 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2024-11-10 14:50:21,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:50:21,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:50:21,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:50:21,163 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:50:21,163 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:50:21,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i [2024-11-10 14:50:22,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:50:22,947 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:50:22,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i [2024-11-10 14:50:22,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0edb69b5/cd5a1708740342638c915d584d08ac28/FLAG906ddbb04 [2024-11-10 14:50:22,987 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0edb69b5/cd5a1708740342638c915d584d08ac28 [2024-11-10 14:50:22,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:50:22,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:50:22,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:50:22,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:50:23,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:50:23,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:50:22" (1/1) ... [2024-11-10 14:50:23,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b9e2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23, skipping insertion in model container [2024-11-10 14:50:23,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:50:22" (1/1) ... [2024-11-10 14:50:23,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:50:23,476 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:50:23,510 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:50:23,513 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:50:23,517 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:50:23,524 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:50:23,541 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:50:23,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:50:23,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:50:23,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:50:23,684 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:50:23,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23 WrapperNode [2024-11-10 14:50:23,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:50:23,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:50:23,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:50:23,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:50:23,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,764 INFO L138 Inliner]: procedures = 176, calls = 170, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 781 [2024-11-10 14:50:23,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:50:23,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:50:23,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:50:23,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:50:23,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,859 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-11-10 14:50:23,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,883 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:50:23,900 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:50:23,900 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:50:23,900 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:50:23,901 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (1/1) ... [2024-11-10 14:50:23,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:50:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:50:23,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:50:23,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:50:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 14:50:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-10 14:50:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-10 14:50:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 14:50:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 14:50:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 14:50:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 14:50:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:50:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 14:50:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 14:50:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:50:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:50:24,174 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:50:24,176 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:50:25,196 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-10 14:50:25,196 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:50:25,241 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:50:25,242 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-10 14:50:25,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:50:25 BoogieIcfgContainer [2024-11-10 14:50:25,243 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:50:25,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:50:25,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:50:25,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:50:25,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:50:22" (1/3) ... [2024-11-10 14:50:25,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be93a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:50:25, skipping insertion in model container [2024-11-10 14:50:25,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:50:23" (2/3) ... [2024-11-10 14:50:25,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be93a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:50:25, skipping insertion in model container [2024-11-10 14:50:25,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:50:25" (3/3) ... [2024-11-10 14:50:25,252 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test1-1.i [2024-11-10 14:50:25,270 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:50:25,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 14:50:25,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:50:25,336 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;@4c3624e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:50:25,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 14:50:25,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 212 states have (on average 1.5943396226415094) internal successors, (338), 214 states have internal predecessors, (338), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 14:50:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-10 14:50:25,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:25,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:50:25,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:25,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1565378449, now seen corresponding path program 1 times [2024-11-10 14:50:25,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:25,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652645835] [2024-11-10 14:50:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:25,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:50:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:50:25,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:50:25,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652645835] [2024-11-10 14:50:25,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652645835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:50:25,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:50:25,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:50:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573784799] [2024-11-10 14:50:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:50:25,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:50:25,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:50:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:50:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:50:25,550 INFO L87 Difference]: Start difference. First operand has 219 states, 212 states have (on average 1.5943396226415094) internal successors, (338), 214 states have internal predecessors, (338), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-11-10 14:50:25,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:50:25,628 INFO L93 Difference]: Finished difference Result 218 states and 306 transitions. [2024-11-10 14:50:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:50:25,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2024-11-10 14:50:25,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:50:25,642 INFO L225 Difference]: With dead ends: 218 [2024-11-10 14:50:25,642 INFO L226 Difference]: Without dead ends: 215 [2024-11-10 14:50:25,644 INFO L431 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 [2024-11-10 14:50:25,648 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 14:50:25,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 14:50:25,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-10 14:50:25,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-10 14:50:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.4210526315789473) internal successors, (297), 210 states have internal predecessors, (297), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 14:50:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 303 transitions. [2024-11-10 14:50:25,704 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 303 transitions. Word has length 9 [2024-11-10 14:50:25,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:50:25,705 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 303 transitions. [2024-11-10 14:50:25,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-11-10 14:50:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 303 transitions. [2024-11-10 14:50:25,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 14:50:25,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:25,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:50:25,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:50:25,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:25,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1322260168, now seen corresponding path program 1 times [2024-11-10 14:50:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:25,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725354082] [2024-11-10 14:50:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:25,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:50:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:50:25,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:50:25,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725354082] [2024-11-10 14:50:25,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725354082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:50:25,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:50:25,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:50:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691810296] [2024-11-10 14:50:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:50:25,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:50:25,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:50:25,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:50:25,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:50:25,800 INFO L87 Difference]: Start difference. First operand 215 states and 303 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-10 14:50:25,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:50:25,941 INFO L93 Difference]: Finished difference Result 412 states and 587 transitions. [2024-11-10 14:50:25,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:50:25,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-11-10 14:50:25,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:50:25,945 INFO L225 Difference]: With dead ends: 412 [2024-11-10 14:50:25,945 INFO L226 Difference]: Without dead ends: 412 [2024-11-10 14:50:25,946 INFO L431 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 [2024-11-10 14:50:25,947 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 276 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:50:25,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 595 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:50:25,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-10 14:50:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 217. [2024-11-10 14:50:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 211 states have (on average 1.4170616113744077) internal successors, (299), 212 states have internal predecessors, (299), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 14:50:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 305 transitions. [2024-11-10 14:50:25,979 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 305 transitions. Word has length 11 [2024-11-10 14:50:25,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:50:25,980 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 305 transitions. [2024-11-10 14:50:25,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-10 14:50:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 305 transitions. [2024-11-10 14:50:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 14:50:25,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:25,987 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-10 14:50:25,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:50:25,988 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:25,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:25,992 INFO L85 PathProgramCache]: Analyzing trace with hash -591623390, now seen corresponding path program 1 times [2024-11-10 14:50:25,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:25,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579628235] [2024-11-10 14:50:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:25,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:50:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:50:26,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:50:26,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579628235] [2024-11-10 14:50:26,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579628235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:50:26,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:50:26,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:50:26,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814517106] [2024-11-10 14:50:26,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:50:26,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:50:26,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:50:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:50:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:50:26,453 INFO L87 Difference]: Start difference. First operand 217 states and 305 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 14:50:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:50:26,595 INFO L93 Difference]: Finished difference Result 220 states and 301 transitions. [2024-11-10 14:50:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:50:26,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 88 [2024-11-10 14:50:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:50:26,598 INFO L225 Difference]: With dead ends: 220 [2024-11-10 14:50:26,598 INFO L226 Difference]: Without dead ends: 220 [2024-11-10 14:50:26,599 INFO L431 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 [2024-11-10 14:50:26,600 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 105 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:50:26,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 674 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:50:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-10 14:50:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2024-11-10 14:50:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 211 states have (on average 1.3838862559241707) internal successors, (292), 212 states have internal predecessors, (292), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 14:50:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 298 transitions. [2024-11-10 14:50:26,625 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 298 transitions. Word has length 88 [2024-11-10 14:50:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:50:26,625 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 298 transitions. [2024-11-10 14:50:26,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 14:50:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 298 transitions. [2024-11-10 14:50:26,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 14:50:26,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:26,630 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-10 14:50:26,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:50:26,631 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:26,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2037272443, now seen corresponding path program 1 times [2024-11-10 14:50:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571487664] [2024-11-10 14:50:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:26,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:50:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:50:26,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:50:26,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571487664] [2024-11-10 14:50:26,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571487664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:50:26,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:50:26,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:50:26,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028858833] [2024-11-10 14:50:26,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:50:26,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:50:26,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:50:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:50:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:50:26,849 INFO L87 Difference]: Start difference. First operand 217 states and 298 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-10 14:50:26,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:50:26,950 INFO L93 Difference]: Finished difference Result 347 states and 487 transitions. [2024-11-10 14:50:26,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:50:26,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2024-11-10 14:50:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:50:26,953 INFO L225 Difference]: With dead ends: 347 [2024-11-10 14:50:26,954 INFO L226 Difference]: Without dead ends: 347 [2024-11-10 14:50:26,954 INFO L431 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 [2024-11-10 14:50:26,955 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 134 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:50:26,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 538 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:50:26,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-10 14:50:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-10 14:50:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 341 states have (on average 1.4105571847507332) internal successors, (481), 342 states have internal predecessors, (481), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 14:50:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 487 transitions. [2024-11-10 14:50:26,973 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 487 transitions. Word has length 88 [2024-11-10 14:50:26,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:50:26,974 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 487 transitions. [2024-11-10 14:50:26,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-10 14:50:26,974 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 487 transitions. [2024-11-10 14:50:26,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-10 14:50:26,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:26,977 INFO L215 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] [2024-11-10 14:50:26,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:50:26,978 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:26,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:26,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1539512535, now seen corresponding path program 1 times [2024-11-10 14:50:26,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:26,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843448406] [2024-11-10 14:50:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:26,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:50:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:27,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 14:50:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:27,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-10 14:50:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 14:50:27,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:50:27,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843448406] [2024-11-10 14:50:27,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843448406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:50:27,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173570337] [2024-11-10 14:50:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:27,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:50:27,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:50:27,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:50:27,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:50:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:27,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 14:50:27,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:50:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 14:50:27,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:50:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 14:50:27,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173570337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:50:27,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:50:27,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-10 14:50:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131105090] [2024-11-10 14:50:27,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:50:27,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:50:27,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:50:27,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:50:27,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-10 14:50:27,979 INFO L87 Difference]: Start difference. First operand 347 states and 487 transitions. Second operand has 8 states, 8 states have (on average 33.125) internal successors, (265), 7 states have internal predecessors, (265), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 14:50:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:50:28,363 INFO L93 Difference]: Finished difference Result 809 states and 1141 transitions. [2024-11-10 14:50:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 14:50:28,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 7 states have internal predecessors, (265), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 103 [2024-11-10 14:50:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:50:28,369 INFO L225 Difference]: With dead ends: 809 [2024-11-10 14:50:28,369 INFO L226 Difference]: Without dead ends: 809 [2024-11-10 14:50:28,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-10 14:50:28,371 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 1477 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 14:50:28,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1271 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 14:50:28,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-10 14:50:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 806. [2024-11-10 14:50:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 791 states have (on average 1.393173198482933) internal successors, (1102), 792 states have internal predecessors, (1102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-10 14:50:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1126 transitions. [2024-11-10 14:50:28,406 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1126 transitions. Word has length 103 [2024-11-10 14:50:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:50:28,408 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1126 transitions. [2024-11-10 14:50:28,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 7 states have internal predecessors, (265), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 14:50:28,409 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1126 transitions. [2024-11-10 14:50:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-10 14:50:28,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:28,422 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-10 14:50:28,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:50:28,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:50:28,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:28,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:28,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1099408502, now seen corresponding path program 1 times [2024-11-10 14:50:28,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:28,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265368213] [2024-11-10 14:50:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:28,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:50:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:29,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 14:50:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:29,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-10 14:50:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 8 proven. 165 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2024-11-10 14:50:29,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:50:29,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265368213] [2024-11-10 14:50:29,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265368213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:50:29,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226389989] [2024-11-10 14:50:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:50:29,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:50:29,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:50:29,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:50:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:50:30,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 14:50:30,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:50:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 14:50:30,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:50:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 14:50:30,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226389989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:50:30,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:50:30,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-10 14:50:30,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674191828] [2024-11-10 14:50:30,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:50:30,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 14:50:30,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:50:30,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 14:50:30,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:50:30,874 INFO L87 Difference]: Start difference. First operand 806 states and 1126 transitions. Second operand has 15 states, 15 states have (on average 52.666666666666664) internal successors, (790), 14 states have internal predecessors, (790), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 14:50:32,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:50:32,423 INFO L93 Difference]: Finished difference Result 1912 states and 2697 transitions. [2024-11-10 14:50:32,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 14:50:32,424 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 52.666666666666664) internal successors, (790), 14 states have internal predecessors, (790), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 334 [2024-11-10 14:50:32,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:50:32,433 INFO L225 Difference]: With dead ends: 1912 [2024-11-10 14:50:32,434 INFO L226 Difference]: Without dead ends: 1912 [2024-11-10 14:50:32,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2024-11-10 14:50:32,435 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 7640 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7640 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-10 14:50:32,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7640 Valid, 3033 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-10 14:50:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-11-10 14:50:32,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1909. [2024-11-10 14:50:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1894 states have (on average 1.4033790918690603) internal successors, (2658), 1895 states have internal predecessors, (2658), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-10 14:50:32,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2682 transitions. [2024-11-10 14:50:32,474 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2682 transitions. Word has length 334 [2024-11-10 14:50:32,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:50:32,475 INFO L471 AbstractCegarLoop]: Abstraction has 1909 states and 2682 transitions. [2024-11-10 14:50:32,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 52.666666666666664) internal successors, (790), 14 states have internal predecessors, (790), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 14:50:32,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2682 transitions. [2024-11-10 14:50:32,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2024-11-10 14:50:32,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:50:32,508 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:50:32,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:50:32,708 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,SelfDestructingSolverStorable5 [2024-11-10 14:50:32,709 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-10 14:50:32,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:50:32,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1024083351, now seen corresponding path program 1 times [2024-11-10 14:50:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:50:32,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911190245] [2024-11-10 14:50:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:50:32,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms