./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 3061b6dc 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_SFH_nondet_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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:26:08,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:26:08,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-19 06:26:08,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:26:08,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:26:08,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:26:08,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:26:08,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:26:08,683 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 06:26:08,684 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 06:26:08,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:26:08,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:26:08,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:26:08,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:26:08,688 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:26:08,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:26:08,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 06:26:08,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:26:08,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:26:08,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:26:08,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:26:08,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 06:26:08,692 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 06:26:08,692 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 06:26:08,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:26:08,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 06:26:08,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 06:26:08,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:26:08,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:26:08,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:26:08,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 06:26:08,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:26:08,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:26:08,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:26:08,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 06:26:08,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:26:08,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:26:08,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:26:08,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:26:08,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:26:08,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:26:08,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:26:08,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:26:08,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:26:08,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:26:08,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2024-11-19 06:26:08,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:26:08,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:26:08,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:26:08,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:26:08,993 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:26:08,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i [2024-11-19 06:26:10,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:26:10,807 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:26:10,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i [2024-11-19 06:26:10,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d2eb362/65983033b0304bd99255505098c010ab/FLAGc7d84b255 [2024-11-19 06:26:10,855 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d2eb362/65983033b0304bd99255505098c010ab [2024-11-19 06:26:10,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:26:10,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:26:10,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:26:10,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:26:10,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:26:10,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:26:10" (1/1) ... [2024-11-19 06:26:10,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d421624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:10, skipping insertion in model container [2024-11-19 06:26:10,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:26:10" (1/1) ... [2024-11-19 06:26:10,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:26:11,381 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,417 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,421 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,441 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,489 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,489 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:26:11,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:26:11,514 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:26:11,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:26:11,659 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:26:11,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11 WrapperNode [2024-11-19 06:26:11,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:26:11,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:26:11,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:26:11,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:26:11,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,769 INFO L138 Inliner]: procedures = 207, calls = 222, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1279 [2024-11-19 06:26:11,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:26:11,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:26:11,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:26:11,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:26:11,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,855 INFO L175 MemorySlicer]: Split 206 memory accesses to 3 slices as follows [2, 170, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-19 06:26:11,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:26:11,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:26:11,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:26:11,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:26:11,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (1/1) ... [2024-11-19 06:26:11,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:26:11,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:26:12,011 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) [2024-11-19 06:26:12,015 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 [2024-11-19 06:26:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 06:26:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 06:26:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 06:26:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 06:26:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 06:26:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 06:26:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:26:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 06:26:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 06:26:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 06:26:12,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:26:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 06:26:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 06:26:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 06:26:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 06:26:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 06:26:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:26:12,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:26:12,305 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:26:12,308 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:26:13,747 INFO L? ?]: Removed 296 outVars from TransFormulas that were not future-live. [2024-11-19 06:26:13,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:26:13,768 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:26:13,768 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-19 06:26:13,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:26:13 BoogieIcfgContainer [2024-11-19 06:26:13,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:26:13,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:26:13,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:26:13,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:26:13,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:26:10" (1/3) ... [2024-11-19 06:26:13,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63905935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:26:13, skipping insertion in model container [2024-11-19 06:26:13,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:26:11" (2/3) ... [2024-11-19 06:26:13,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63905935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:26:13, skipping insertion in model container [2024-11-19 06:26:13,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:26:13" (3/3) ... [2024-11-19 06:26:13,780 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test2-1.i [2024-11-19 06:26:13,797 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:26:13,797 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 06:26:13,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:26:13,868 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;@4f47e904, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:26:13,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 06:26:13,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 362 states have (on average 1.6215469613259668) internal successors, (587), 364 states have internal predecessors, (587), 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) [2024-11-19 06:26:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-19 06:26:13,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:13,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-19 06:26:13,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:13,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:13,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1665797, now seen corresponding path program 1 times [2024-11-19 06:26:13,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:13,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458445098] [2024-11-19 06:26:13,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:13,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:26:14,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:14,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458445098] [2024-11-19 06:26:14,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458445098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:14,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:14,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:26:14,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193637344] [2024-11-19 06:26:14,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:14,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:26:14,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:26:14,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:26:14,239 INFO L87 Difference]: Start difference. First operand has 369 states, 362 states have (on average 1.6215469613259668) internal successors, (587), 364 states have internal predecessors, (587), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-19 06:26:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:14,445 INFO L93 Difference]: Finished difference Result 533 states and 774 transitions. [2024-11-19 06:26:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:26:14,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-19 06:26:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:14,470 INFO L225 Difference]: With dead ends: 533 [2024-11-19 06:26:14,470 INFO L226 Difference]: Without dead ends: 529 [2024-11-19 06:26:14,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:26:14,475 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 240 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:14,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1550 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:26:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-19 06:26:14,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 526. [2024-11-19 06:26:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 520 states have (on average 1.4615384615384615) internal successors, (760), 521 states have internal predecessors, (760), 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) [2024-11-19 06:26:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 766 transitions. [2024-11-19 06:26:14,582 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 766 transitions. Word has length 4 [2024-11-19 06:26:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:14,583 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 766 transitions. [2024-11-19 06:26:14,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-19 06:26:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 766 transitions. [2024-11-19 06:26:14,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 06:26:14,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:14,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:26:14,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:26:14,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:14,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1562403199, now seen corresponding path program 1 times [2024-11-19 06:26:14,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:14,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662529228] [2024-11-19 06:26:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:14,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:14,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:26:14,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:14,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662529228] [2024-11-19 06:26:14,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662529228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:14,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:14,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:26:14,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64968158] [2024-11-19 06:26:14,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:14,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:26:14,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:14,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:26:14,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:26:14,898 INFO L87 Difference]: Start difference. First operand 526 states and 766 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-19 06:26:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:14,990 INFO L93 Difference]: Finished difference Result 532 states and 758 transitions. [2024-11-19 06:26:14,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:26:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2024-11-19 06:26:14,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:14,994 INFO L225 Difference]: With dead ends: 532 [2024-11-19 06:26:14,994 INFO L226 Difference]: Without dead ends: 532 [2024-11-19 06:26:14,995 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 [2024-11-19 06:26:14,996 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 105 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:14,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1410 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:26:14,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-19 06:26:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 526. [2024-11-19 06:26:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 520 states have (on average 1.4346153846153846) internal successors, (746), 521 states have internal predecessors, (746), 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) [2024-11-19 06:26:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 752 transitions. [2024-11-19 06:26:15,038 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 752 transitions. Word has length 67 [2024-11-19 06:26:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:15,038 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 752 transitions. [2024-11-19 06:26:15,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-19 06:26:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 752 transitions. [2024-11-19 06:26:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 06:26:15,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:15,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:26:15,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:26:15,043 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:15,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash -672253965, now seen corresponding path program 1 times [2024-11-19 06:26:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225005435] [2024-11-19 06:26:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:26:15,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:15,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225005435] [2024-11-19 06:26:15,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225005435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:15,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:15,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 06:26:15,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073476366] [2024-11-19 06:26:15,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:15,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:26:15,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:15,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:26:15,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:26:15,598 INFO L87 Difference]: Start difference. First operand 526 states and 752 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-11-19 06:26:15,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:15,821 INFO L93 Difference]: Finished difference Result 725 states and 1037 transitions. [2024-11-19 06:26:15,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:26:15,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2024-11-19 06:26:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:15,827 INFO L225 Difference]: With dead ends: 725 [2024-11-19 06:26:15,827 INFO L226 Difference]: Without dead ends: 722 [2024-11-19 06:26:15,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-19 06:26:15,831 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 504 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:15,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 2518 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:26:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-19 06:26:15,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 368. [2024-11-19 06:26:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 362 states have (on average 1.430939226519337) internal successors, (518), 363 states have internal predecessors, (518), 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) [2024-11-19 06:26:15,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 524 transitions. [2024-11-19 06:26:15,857 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 524 transitions. Word has length 67 [2024-11-19 06:26:15,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:15,857 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 524 transitions. [2024-11-19 06:26:15,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-11-19 06:26:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 524 transitions. [2024-11-19 06:26:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-19 06:26:15,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:15,863 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] [2024-11-19 06:26:15,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:26:15,864 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:15,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:15,864 INFO L85 PathProgramCache]: Analyzing trace with hash 158487370, now seen corresponding path program 1 times [2024-11-19 06:26:15,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:15,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232081706] [2024-11-19 06:26:15,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:15,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:26:16,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:16,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232081706] [2024-11-19 06:26:16,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232081706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:16,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:16,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:26:16,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721234099] [2024-11-19 06:26:16,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:16,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:26:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:16,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:26:16,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:26:16,139 INFO L87 Difference]: Start difference. First operand 368 states and 524 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-19 06:26:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:16,232 INFO L93 Difference]: Finished difference Result 326 states and 447 transitions. [2024-11-19 06:26:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:26:16,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2024-11-19 06:26:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:16,235 INFO L225 Difference]: With dead ends: 326 [2024-11-19 06:26:16,235 INFO L226 Difference]: Without dead ends: 326 [2024-11-19 06:26:16,235 INFO L431 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 [2024-11-19 06:26:16,236 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 30 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:16,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1241 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:26:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-19 06:26:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-11-19 06:26:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 320 states have (on average 1.378125) internal successors, (441), 321 states have internal predecessors, (441), 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) [2024-11-19 06:26:16,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 447 transitions. [2024-11-19 06:26:16,248 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 447 transitions. Word has length 86 [2024-11-19 06:26:16,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:16,250 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 447 transitions. [2024-11-19 06:26:16,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-19 06:26:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 447 transitions. [2024-11-19 06:26:16,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-19 06:26:16,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:16,252 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] [2024-11-19 06:26:16,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:26:16,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:16,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1370986562, now seen corresponding path program 1 times [2024-11-19 06:26:16,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:16,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83092750] [2024-11-19 06:26:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:16,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:26:16,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:16,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83092750] [2024-11-19 06:26:16,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83092750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:16,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:16,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:26:16,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50619612] [2024-11-19 06:26:16,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:16,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:26:16,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:16,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:26:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:26:16,409 INFO L87 Difference]: Start difference. First operand 326 states and 447 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-19 06:26:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:16,475 INFO L93 Difference]: Finished difference Result 555 states and 766 transitions. [2024-11-19 06:26:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:26:16,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-11-19 06:26:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:16,478 INFO L225 Difference]: With dead ends: 555 [2024-11-19 06:26:16,478 INFO L226 Difference]: Without dead ends: 555 [2024-11-19 06:26:16,478 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 [2024-11-19 06:26:16,481 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 258 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:16,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1052 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:26:16,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-19 06:26:16,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2024-11-19 06:26:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 543 states have (on average 1.3922651933701657) internal successors, (756), 544 states have internal predecessors, (756), 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) [2024-11-19 06:26:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 762 transitions. [2024-11-19 06:26:16,496 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 762 transitions. Word has length 86 [2024-11-19 06:26:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:16,499 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 762 transitions. [2024-11-19 06:26:16,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-19 06:26:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 762 transitions. [2024-11-19 06:26:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 06:26:16,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:16,502 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] [2024-11-19 06:26:16,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:26:16,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:16,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:16,506 INFO L85 PathProgramCache]: Analyzing trace with hash 222231063, now seen corresponding path program 1 times [2024-11-19 06:26:16,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:16,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949492435] [2024-11-19 06:26:16,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:16,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:26:16,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:16,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949492435] [2024-11-19 06:26:16,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949492435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:16,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:16,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:26:16,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792486513] [2024-11-19 06:26:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:16,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:26:16,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:26:16,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:26:16,766 INFO L87 Difference]: Start difference. First operand 549 states and 762 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-19 06:26:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:16,808 INFO L93 Difference]: Finished difference Result 549 states and 756 transitions. [2024-11-19 06:26:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:26:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 101 [2024-11-19 06:26:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:16,813 INFO L225 Difference]: With dead ends: 549 [2024-11-19 06:26:16,813 INFO L226 Difference]: Without dead ends: 549 [2024-11-19 06:26:16,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:26:16,814 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 0 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:16,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 844 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 06:26:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-19 06:26:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-19 06:26:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 543 states have (on average 1.3812154696132597) internal successors, (750), 544 states have internal predecessors, (750), 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) [2024-11-19 06:26:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 756 transitions. [2024-11-19 06:26:16,831 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 756 transitions. Word has length 101 [2024-11-19 06:26:16,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:16,831 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 756 transitions. [2024-11-19 06:26:16,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-19 06:26:16,832 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 756 transitions. [2024-11-19 06:26:16,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 06:26:16,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:16,853 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] [2024-11-19 06:26:16,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 06:26:16,853 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:16,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash 714857237, now seen corresponding path program 1 times [2024-11-19 06:26:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671267518] [2024-11-19 06:26:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:16,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:26:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671267518] [2024-11-19 06:26:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671267518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:26:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525927803] [2024-11-19 06:26:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:17,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:26:17,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:26:17,358 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) [2024-11-19 06:26:17,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:26:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:17,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 06:26:17,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:26:17,765 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 [2024-11-19 06:26:17,794 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 16 treesize of output 17 [2024-11-19 06:26:18,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:26:18,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 58 [2024-11-19 06:26:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:26:18,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:26:18,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525927803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:18,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:26:18,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2024-11-19 06:26:18,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473147536] [2024-11-19 06:26:18,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:18,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 06:26:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 06:26:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:26:18,835 INFO L87 Difference]: Start difference. First operand 549 states and 756 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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) [2024-11-19 06:26:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:19,943 INFO L93 Difference]: Finished difference Result 781 states and 1077 transitions. [2024-11-19 06:26:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 06:26:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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 101 [2024-11-19 06:26:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:19,947 INFO L225 Difference]: With dead ends: 781 [2024-11-19 06:26:19,948 INFO L226 Difference]: Without dead ends: 781 [2024-11-19 06:26:19,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-19 06:26:19,949 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 547 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:19,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 2282 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 06:26:19,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-19 06:26:19,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 549. [2024-11-19 06:26:19,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 543 states have (on average 1.3793738489871086) internal successors, (749), 544 states have internal predecessors, (749), 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) [2024-11-19 06:26:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 755 transitions. [2024-11-19 06:26:19,962 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 755 transitions. Word has length 101 [2024-11-19 06:26:19,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:19,963 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 755 transitions. [2024-11-19 06:26:19,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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) [2024-11-19 06:26:19,963 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 755 transitions. [2024-11-19 06:26:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 06:26:19,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:19,964 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] [2024-11-19 06:26:19,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:26:20,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:26:20,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:20,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2029479846, now seen corresponding path program 1 times [2024-11-19 06:26:20,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:20,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404865511] [2024-11-19 06:26:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:20,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:26:20,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404865511] [2024-11-19 06:26:20,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404865511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:26:20,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185654858] [2024-11-19 06:26:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:20,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:26:20,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:26:20,612 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) [2024-11-19 06:26:20,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:26:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:20,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 06:26:20,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:26:20,940 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 [2024-11-19 06:26:20,953 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 7 treesize of output 3 [2024-11-19 06:26:21,179 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 [2024-11-19 06:26:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:26:21,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:26:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:26:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185654858] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 06:26:21,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 06:26:21,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 7] total 11 [2024-11-19 06:26:21,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374947363] [2024-11-19 06:26:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:21,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:26:21,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:21,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:26:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 06:26:21,550 INFO L87 Difference]: Start difference. First operand 549 states and 755 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-19 06:26:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:21,669 INFO L93 Difference]: Finished difference Result 716 states and 991 transitions. [2024-11-19 06:26:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:26:21,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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 102 [2024-11-19 06:26:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:21,673 INFO L225 Difference]: With dead ends: 716 [2024-11-19 06:26:21,673 INFO L226 Difference]: Without dead ends: 716 [2024-11-19 06:26:21,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 06:26:21,674 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 567 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:21,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1280 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:26:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-19 06:26:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 551. [2024-11-19 06:26:21,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 545 states have (on average 1.3779816513761467) internal successors, (751), 546 states have internal predecessors, (751), 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) [2024-11-19 06:26:21,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 757 transitions. [2024-11-19 06:26:21,688 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 757 transitions. Word has length 102 [2024-11-19 06:26:21,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:21,688 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 757 transitions. [2024-11-19 06:26:21,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-19 06:26:21,688 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 757 transitions. [2024-11-19 06:26:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 06:26:21,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:21,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:26:21,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 06:26:21,890 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,SelfDestructingSolverStorable7 [2024-11-19 06:26:21,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:21,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:21,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1787607994, now seen corresponding path program 1 times [2024-11-19 06:26:21,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:21,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049056165] [2024-11-19 06:26:21,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:21,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:26:22,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:22,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049056165] [2024-11-19 06:26:22,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049056165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:22,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:26:22,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:26:22,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221360853] [2024-11-19 06:26:22,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:22,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:26:22,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:26:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:26:22,230 INFO L87 Difference]: Start difference. First operand 551 states and 757 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-19 06:26:22,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:22,636 INFO L93 Difference]: Finished difference Result 636 states and 865 transitions. [2024-11-19 06:26:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:26:22,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 159 [2024-11-19 06:26:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:22,639 INFO L225 Difference]: With dead ends: 636 [2024-11-19 06:26:22,640 INFO L226 Difference]: Without dead ends: 636 [2024-11-19 06:26:22,640 INFO L431 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 [2024-11-19 06:26:22,641 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 1447 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:22,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1056 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:26:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-19 06:26:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 415. [2024-11-19 06:26:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 409 states have (on average 1.3496332518337408) internal successors, (552), 410 states have internal predecessors, (552), 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) [2024-11-19 06:26:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 558 transitions. [2024-11-19 06:26:22,653 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 558 transitions. Word has length 159 [2024-11-19 06:26:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:22,654 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 558 transitions. [2024-11-19 06:26:22,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-19 06:26:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 558 transitions. [2024-11-19 06:26:22,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-19 06:26:22,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:22,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:26:22,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:26:22,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:22,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:22,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1079816102, now seen corresponding path program 1 times [2024-11-19 06:26:22,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:22,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690307812] [2024-11-19 06:26:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:22,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:23,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:26:23,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690307812] [2024-11-19 06:26:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690307812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:26:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360541967] [2024-11-19 06:26:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:23,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:26:23,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:26:23,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:26:23,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:26:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:23,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 06:26:23,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:26:23,671 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 [2024-11-19 06:26:24,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:26:24,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 55 [2024-11-19 06:26:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 06:26:24,360 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:26:24,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360541967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:26:24,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:26:24,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2024-11-19 06:26:24,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202410795] [2024-11-19 06:26:24,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:26:24,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 06:26:24,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:26:24,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 06:26:24,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-19 06:26:24,363 INFO L87 Difference]: Start difference. First operand 415 states and 558 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 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) [2024-11-19 06:26:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:26:25,859 INFO L93 Difference]: Finished difference Result 675 states and 916 transitions. [2024-11-19 06:26:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:26:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 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 169 [2024-11-19 06:26:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:26:25,863 INFO L225 Difference]: With dead ends: 675 [2024-11-19 06:26:25,863 INFO L226 Difference]: Without dead ends: 675 [2024-11-19 06:26:25,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-19 06:26:25,865 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 473 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:26:25,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 2852 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 06:26:25,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-19 06:26:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 444. [2024-11-19 06:26:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 438 states have (on average 1.3378995433789955) internal successors, (586), 439 states have internal predecessors, (586), 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) [2024-11-19 06:26:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 592 transitions. [2024-11-19 06:26:25,876 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 592 transitions. Word has length 169 [2024-11-19 06:26:25,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:26:25,877 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 592 transitions. [2024-11-19 06:26:25,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 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) [2024-11-19 06:26:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 592 transitions. [2024-11-19 06:26:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-19 06:26:25,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:26:25,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:26:25,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 06:26:26,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:26:26,084 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-19 06:26:26,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:26:26,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2033639934, now seen corresponding path program 1 times [2024-11-19 06:26:26,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:26:26,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359957450] [2024-11-19 06:26:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:26,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:26:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:26:26,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:26:26,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359957450] [2024-11-19 06:26:26,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359957450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:26:26,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739706519] [2024-11-19 06:26:26,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:26:26,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:26:26,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:26:26,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:26:26,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 06:26:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:26:26,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 06:26:26,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:27:36,220 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)