./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:27:30,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:27:30,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:27:30,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:27:30,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:27:30,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:27:30,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:27:30,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:27:30,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:27:30,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:27:30,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:27:30,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:27:30,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:27:30,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:27:30,198 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:27:30,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:27:30,198 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:27:30,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:27:30,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:27:30,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:27:30,201 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:27:30,202 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:27:30,202 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:27:30,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:27:30,203 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:27:30,203 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:27:30,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:27:30,203 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:27:30,204 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:27:30,204 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:27:30,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:27:30,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:27:30,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:27:30,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:27:30,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:27:30,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:27:30,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:27:30,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:27:30,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:27:30,207 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:27:30,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:27:30,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:27:30,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 [2024-11-10 17:27:30,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:27:30,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:27:30,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:27:30,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:27:30,516 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:27:30,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2024-11-10 17:27:32,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:27:32,370 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:27:32,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2024-11-10 17:27:32,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf78f835/4b139dcd841b474195878087f79bf4f2/FLAGc25e78940 [2024-11-10 17:27:32,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf78f835/4b139dcd841b474195878087f79bf4f2 [2024-11-10 17:27:32,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:27:32,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:27:32,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:27:32,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:27:32,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:27:32,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:27:32" (1/1) ... [2024-11-10 17:27:32,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328d49b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:32, skipping insertion in model container [2024-11-10 17:27:32,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:27:32" (1/1) ... [2024-11-10 17:27:32,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:27:32,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,908 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,913 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,920 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,929 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,977 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,979 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,985 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:32,992 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,026 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,030 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,032 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,036 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,054 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,055 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,056 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,057 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,066 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,066 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,068 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,068 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,077 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,077 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,079 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,079 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 17:27:33,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:27:33,109 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:27:33,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:27:33,289 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:27:33,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33 WrapperNode [2024-11-10 17:27:33,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:27:33,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:27:33,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:27:33,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:27:33,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,496 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3362 [2024-11-10 17:27:33,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:27:33,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:27:33,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:27:33,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:27:33,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,663 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 106, 372]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 86 writes are split as follows [0, 4, 82]. [2024-11-10 17:27:33,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,744 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:27:33,797 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:27:33,797 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:27:33,797 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:27:33,798 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (1/1) ... [2024-11-10 17:27:33,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:27:33,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:27:33,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 17:27:33,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 17:27:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-10 17:27:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-10 17:27:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 17:27:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 17:27:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 17:27:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 17:27:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 17:27:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 17:27:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 17:27:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 17:27:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-10 17:27:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-10 17:27:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-10 17:27:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-10 17:27:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-10 17:27:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-10 17:27:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 17:27:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:27:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 17:27:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 17:27:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:27:33,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:27:34,224 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:27:34,226 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:27:37,855 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-10 17:27:38,223 INFO L? ?]: Removed 2487 outVars from TransFormulas that were not future-live. [2024-11-10 17:27:38,223 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:27:38,379 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:27:38,379 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-10 17:27:38,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:27:38 BoogieIcfgContainer [2024-11-10 17:27:38,380 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:27:38,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:27:38,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:27:38,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:27:38,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:27:32" (1/3) ... [2024-11-10 17:27:38,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a192d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:27:38, skipping insertion in model container [2024-11-10 17:27:38,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:27:33" (2/3) ... [2024-11-10 17:27:38,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a192d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:27:38, skipping insertion in model container [2024-11-10 17:27:38,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:27:38" (3/3) ... [2024-11-10 17:27:38,392 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i [2024-11-10 17:27:38,410 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:27:38,410 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 986 error locations. [2024-11-10 17:27:38,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:27:38,528 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;@15e537ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:27:38,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 986 error locations. [2024-11-10 17:27:38,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 2697 states, 1699 states have (on average 1.9505591524426134) internal successors, (3314), 2683 states have internal predecessors, (3314), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-10 17:27:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-10 17:27:38,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:38,553 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-10 17:27:38,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr983REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:38,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash 3466530, now seen corresponding path program 1 times [2024-11-10 17:27:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:38,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504273995] [2024-11-10 17:27:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:38,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504273995] [2024-11-10 17:27:38,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504273995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:38,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:38,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:27:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715288175] [2024-11-10 17:27:38,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:38,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:27:38,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:27:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:38,853 INFO L87 Difference]: Start difference. First operand has 2697 states, 1699 states have (on average 1.9505591524426134) internal successors, (3314), 2683 states have internal predecessors, (3314), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:40,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:40,651 INFO L93 Difference]: Finished difference Result 3290 states and 3861 transitions. [2024-11-10 17:27:40,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:27:40,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-10 17:27:40,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:40,689 INFO L225 Difference]: With dead ends: 3290 [2024-11-10 17:27:40,689 INFO L226 Difference]: Without dead ends: 3287 [2024-11-10 17:27:40,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:40,694 INFO L432 NwaCegarLoop]: 2120 mSDtfsCounter, 2912 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:40,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2922 Valid, 2644 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 17:27:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-11-10 17:27:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2936. [2024-11-10 17:27:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 1966 states have (on average 1.8453713123092574) internal successors, (3628), 2920 states have internal predecessors, (3628), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-10 17:27:40,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3660 transitions. [2024-11-10 17:27:40,859 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3660 transitions. Word has length 3 [2024-11-10 17:27:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:40,860 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 3660 transitions. [2024-11-10 17:27:40,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3660 transitions. [2024-11-10 17:27:40,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-10 17:27:40,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:40,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-10 17:27:40,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:27:40,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr984REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:40,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash 3466531, now seen corresponding path program 1 times [2024-11-10 17:27:40,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:40,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945343565] [2024-11-10 17:27:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:40,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:40,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945343565] [2024-11-10 17:27:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945343565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:40,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:27:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695686504] [2024-11-10 17:27:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:40,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:27:40,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:27:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:40,974 INFO L87 Difference]: Start difference. First operand 2936 states and 3660 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:42,729 INFO L93 Difference]: Finished difference Result 4134 states and 5162 transitions. [2024-11-10 17:27:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:27:42,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-10 17:27:42,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:42,745 INFO L225 Difference]: With dead ends: 4134 [2024-11-10 17:27:42,746 INFO L226 Difference]: Without dead ends: 4134 [2024-11-10 17:27:42,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:42,747 INFO L432 NwaCegarLoop]: 2671 mSDtfsCounter, 1496 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 4707 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:42,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 4707 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 17:27:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4134 states. [2024-11-10 17:27:42,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4134 to 3806. [2024-11-10 17:27:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 2834 states have (on average 1.808045165843331) internal successors, (5124), 3787 states have internal predecessors, (5124), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-10 17:27:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5162 transitions. [2024-11-10 17:27:42,838 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5162 transitions. Word has length 3 [2024-11-10 17:27:42,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:42,838 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 5162 transitions. [2024-11-10 17:27:42,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:42,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5162 transitions. [2024-11-10 17:27:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 17:27:42,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:42,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:42,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:27:42,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr980REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:42,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1025058789, now seen corresponding path program 1 times [2024-11-10 17:27:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:42,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480186737] [2024-11-10 17:27:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:42,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:43,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:43,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480186737] [2024-11-10 17:27:43,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480186737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:43,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:43,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:27:43,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472029017] [2024-11-10 17:27:43,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:43,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:27:43,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:43,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:27:43,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:43,049 INFO L87 Difference]: Start difference. First operand 3806 states and 5162 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:46,842 INFO L93 Difference]: Finished difference Result 7114 states and 8694 transitions. [2024-11-10 17:27:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:27:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 17:27:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:46,874 INFO L225 Difference]: With dead ends: 7114 [2024-11-10 17:27:46,874 INFO L226 Difference]: Without dead ends: 7114 [2024-11-10 17:27:46,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:27:46,880 INFO L432 NwaCegarLoop]: 2512 mSDtfsCounter, 9699 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9702 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:46,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9702 Valid, 5708 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-10 17:27:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-11-10 17:27:46,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 4844. [2024-11-10 17:27:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 3872 states have (on average 1.8403925619834711) internal successors, (7126), 4819 states have internal predecessors, (7126), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 7176 transitions. [2024-11-10 17:27:47,020 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 7176 transitions. Word has length 8 [2024-11-10 17:27:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:47,021 INFO L471 AbstractCegarLoop]: Abstraction has 4844 states and 7176 transitions. [2024-11-10 17:27:47,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 7176 transitions. [2024-11-10 17:27:47,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-10 17:27:47,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:47,022 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:47,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:27:47,023 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr977REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:47,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:47,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1712048008, now seen corresponding path program 1 times [2024-11-10 17:27:47,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:47,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584397157] [2024-11-10 17:27:47,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:47,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584397157] [2024-11-10 17:27:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584397157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:47,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:47,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:27:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251768875] [2024-11-10 17:27:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:47,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:27:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:27:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:47,106 INFO L87 Difference]: Start difference. First operand 4844 states and 7176 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:48,609 INFO L93 Difference]: Finished difference Result 5953 states and 8467 transitions. [2024-11-10 17:27:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:27:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-10 17:27:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:48,631 INFO L225 Difference]: With dead ends: 5953 [2024-11-10 17:27:48,632 INFO L226 Difference]: Without dead ends: 5953 [2024-11-10 17:27:48,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:48,633 INFO L432 NwaCegarLoop]: 3399 mSDtfsCounter, 2883 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:48,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 4518 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 17:27:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2024-11-10 17:27:48,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 4752. [2024-11-10 17:27:48,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4752 states, 3872 states have (on average 1.7848657024793388) internal successors, (6911), 4727 states have internal predecessors, (6911), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 6961 transitions. [2024-11-10 17:27:48,744 INFO L78 Accepts]: Start accepts. Automaton has 4752 states and 6961 transitions. Word has length 9 [2024-11-10 17:27:48,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:48,745 INFO L471 AbstractCegarLoop]: Abstraction has 4752 states and 6961 transitions. [2024-11-10 17:27:48,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:48,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4752 states and 6961 transitions. [2024-11-10 17:27:48,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-10 17:27:48,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:48,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:48,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:27:48,746 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr978REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:48,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:48,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1712048007, now seen corresponding path program 1 times [2024-11-10 17:27:48,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:48,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025811836] [2024-11-10 17:27:48,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:48,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:48,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025811836] [2024-11-10 17:27:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025811836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:48,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:27:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96741240] [2024-11-10 17:27:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:48,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:27:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:48,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:27:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:48,839 INFO L87 Difference]: Start difference. First operand 4752 states and 6961 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:50,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:50,290 INFO L93 Difference]: Finished difference Result 7560 states and 10987 transitions. [2024-11-10 17:27:50,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:27:50,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-10 17:27:50,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:50,317 INFO L225 Difference]: With dead ends: 7560 [2024-11-10 17:27:50,317 INFO L226 Difference]: Without dead ends: 7560 [2024-11-10 17:27:50,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:50,318 INFO L432 NwaCegarLoop]: 3756 mSDtfsCounter, 2355 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:50,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 5473 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 17:27:50,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7560 states. [2024-11-10 17:27:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7560 to 5302. [2024-11-10 17:27:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 4432 states have (on average 1.776398916967509) internal successors, (7873), 5277 states have internal predecessors, (7873), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 7923 transitions. [2024-11-10 17:27:50,471 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 7923 transitions. Word has length 9 [2024-11-10 17:27:50,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:50,471 INFO L471 AbstractCegarLoop]: Abstraction has 5302 states and 7923 transitions. [2024-11-10 17:27:50,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 7923 transitions. [2024-11-10 17:27:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-10 17:27:50,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:50,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:50,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:27:50,472 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr345REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:50,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash -11078433, now seen corresponding path program 1 times [2024-11-10 17:27:50,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:50,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81413113] [2024-11-10 17:27:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:50,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:50,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:50,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81413113] [2024-11-10 17:27:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81413113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:50,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:50,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:27:50,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160384924] [2024-11-10 17:27:50,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:50,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:27:50,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:27:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:27:50,560 INFO L87 Difference]: Start difference. First operand 5302 states and 7923 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:51,027 INFO L93 Difference]: Finished difference Result 7337 states and 10735 transitions. [2024-11-10 17:27:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:27:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-10 17:27:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:51,043 INFO L225 Difference]: With dead ends: 7337 [2024-11-10 17:27:51,043 INFO L226 Difference]: Without dead ends: 7337 [2024-11-10 17:27:51,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:51,044 INFO L432 NwaCegarLoop]: 3137 mSDtfsCounter, 1467 mSDsluCounter, 5909 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 9046 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:51,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 9046 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 17:27:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7337 states. [2024-11-10 17:27:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7337 to 5305. [2024-11-10 17:27:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 4435 states have (on average 1.7758737316798197) internal successors, (7876), 5280 states have internal predecessors, (7876), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 7926 transitions. [2024-11-10 17:27:51,159 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 7926 transitions. Word has length 13 [2024-11-10 17:27:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:51,159 INFO L471 AbstractCegarLoop]: Abstraction has 5305 states and 7926 transitions. [2024-11-10 17:27:51,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 7926 transitions. [2024-11-10 17:27:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 17:27:51,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:51,160 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] [2024-11-10 17:27:51,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:27:51,161 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr967REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:51,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash 260256747, now seen corresponding path program 1 times [2024-11-10 17:27:51,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:51,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851225604] [2024-11-10 17:27:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:51,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:51,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851225604] [2024-11-10 17:27:51,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851225604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:51,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:51,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:27:51,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34224447] [2024-11-10 17:27:51,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:51,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:27:51,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:27:51,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:27:51,239 INFO L87 Difference]: Start difference. First operand 5305 states and 7926 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:52,618 INFO L93 Difference]: Finished difference Result 5380 states and 8032 transitions. [2024-11-10 17:27:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:27:52,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2024-11-10 17:27:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:52,628 INFO L225 Difference]: With dead ends: 5380 [2024-11-10 17:27:52,629 INFO L226 Difference]: Without dead ends: 5380 [2024-11-10 17:27:52,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:52,632 INFO L432 NwaCegarLoop]: 1948 mSDtfsCounter, 3146 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:52,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3156 Valid, 3781 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 17:27:52,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-11-10 17:27:52,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 5282. [2024-11-10 17:27:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 4435 states have (on average 1.765501691093574) internal successors, (7830), 5257 states have internal predecessors, (7830), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 7880 transitions. [2024-11-10 17:27:52,714 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 7880 transitions. Word has length 22 [2024-11-10 17:27:52,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:52,715 INFO L471 AbstractCegarLoop]: Abstraction has 5282 states and 7880 transitions. [2024-11-10 17:27:52,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 7880 transitions. [2024-11-10 17:27:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 17:27:52,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:52,716 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] [2024-11-10 17:27:52,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 17:27:52,717 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr968REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:52,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash 260256748, now seen corresponding path program 1 times [2024-11-10 17:27:52,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:52,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615027885] [2024-11-10 17:27:52,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:52,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:52,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615027885] [2024-11-10 17:27:52,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615027885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:52,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:52,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:27:52,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250101449] [2024-11-10 17:27:52,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:52,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:27:52,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:52,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:27:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:52,803 INFO L87 Difference]: Start difference. First operand 5282 states and 7880 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:53,012 INFO L93 Difference]: Finished difference Result 5144 states and 7674 transitions. [2024-11-10 17:27:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:27:53,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2024-11-10 17:27:53,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:53,026 INFO L225 Difference]: With dead ends: 5144 [2024-11-10 17:27:53,027 INFO L226 Difference]: Without dead ends: 5144 [2024-11-10 17:27:53,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:53,028 INFO L432 NwaCegarLoop]: 2789 mSDtfsCounter, 61 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5524 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:53,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5524 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 17:27:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2024-11-10 17:27:53,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 5144. [2024-11-10 17:27:53,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5144 states, 4309 states have (on average 1.7693200278486887) internal successors, (7624), 5119 states have internal predecessors, (7624), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 7674 transitions. [2024-11-10 17:27:53,115 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 7674 transitions. Word has length 22 [2024-11-10 17:27:53,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:53,115 INFO L471 AbstractCegarLoop]: Abstraction has 5144 states and 7674 transitions. [2024-11-10 17:27:53,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:53,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 7674 transitions. [2024-11-10 17:27:53,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 17:27:53,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:53,116 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] [2024-11-10 17:27:53,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 17:27:53,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr659REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:53,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:53,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2008294252, now seen corresponding path program 1 times [2024-11-10 17:27:53,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:53,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708824241] [2024-11-10 17:27:53,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:53,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:53,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:53,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708824241] [2024-11-10 17:27:53,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708824241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:53,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:53,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:27:53,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343935998] [2024-11-10 17:27:53,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:53,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:27:53,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:53,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:27:53,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:27:53,207 INFO L87 Difference]: Start difference. First operand 5144 states and 7674 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:53,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:53,594 INFO L93 Difference]: Finished difference Result 7078 states and 10356 transitions. [2024-11-10 17:27:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:27:53,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2024-11-10 17:27:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:53,610 INFO L225 Difference]: With dead ends: 7078 [2024-11-10 17:27:53,610 INFO L226 Difference]: Without dead ends: 7078 [2024-11-10 17:27:53,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:53,613 INFO L432 NwaCegarLoop]: 3024 mSDtfsCounter, 1330 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 8703 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:53,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 8703 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 17:27:53,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2024-11-10 17:27:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 5154. [2024-11-10 17:27:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 4319 states have (on average 1.767538782125492) internal successors, (7634), 5129 states have internal predecessors, (7634), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 7684 transitions. [2024-11-10 17:27:53,734 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 7684 transitions. Word has length 22 [2024-11-10 17:27:53,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:53,734 INFO L471 AbstractCegarLoop]: Abstraction has 5154 states and 7684 transitions. [2024-11-10 17:27:53,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:53,735 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 7684 transitions. [2024-11-10 17:27:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 17:27:53,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:53,736 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] [2024-11-10 17:27:53,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 17:27:53,736 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr944REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash 998586895, now seen corresponding path program 1 times [2024-11-10 17:27:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571564269] [2024-11-10 17:27:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:53,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:53,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571564269] [2024-11-10 17:27:53,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571564269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:53,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:53,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:27:53,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802640023] [2024-11-10 17:27:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:53,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:27:53,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:53,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:27:53,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:27:53,820 INFO L87 Difference]: Start difference. First operand 5154 states and 7684 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:54,119 INFO L93 Difference]: Finished difference Result 5131 states and 7640 transitions. [2024-11-10 17:27:54,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:27:54,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2024-11-10 17:27:54,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:54,132 INFO L225 Difference]: With dead ends: 5131 [2024-11-10 17:27:54,132 INFO L226 Difference]: Without dead ends: 5131 [2024-11-10 17:27:54,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:54,133 INFO L432 NwaCegarLoop]: 2751 mSDtfsCounter, 45 mSDsluCounter, 5478 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:54,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 8229 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 17:27:54,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2024-11-10 17:27:54,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2024-11-10 17:27:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4303 states have (on average 1.763885661166628) internal successors, (7590), 5106 states have internal predecessors, (7590), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:54,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 7640 transitions. [2024-11-10 17:27:54,212 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 7640 transitions. Word has length 24 [2024-11-10 17:27:54,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:54,213 INFO L471 AbstractCegarLoop]: Abstraction has 5131 states and 7640 transitions. [2024-11-10 17:27:54,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:54,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 7640 transitions. [2024-11-10 17:27:54,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-10 17:27:54,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:54,214 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] [2024-11-10 17:27:54,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 17:27:54,214 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr930REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:54,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:54,215 INFO L85 PathProgramCache]: Analyzing trace with hash 344062853, now seen corresponding path program 1 times [2024-11-10 17:27:54,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:54,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193769933] [2024-11-10 17:27:54,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:54,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193769933] [2024-11-10 17:27:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193769933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:54,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:54,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:27:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908122131] [2024-11-10 17:27:54,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:54,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:27:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:27:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:27:54,365 INFO L87 Difference]: Start difference. First operand 5131 states and 7640 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:56,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:56,135 INFO L93 Difference]: Finished difference Result 7483 states and 10848 transitions. [2024-11-10 17:27:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:27:56,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2024-11-10 17:27:56,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:56,148 INFO L225 Difference]: With dead ends: 7483 [2024-11-10 17:27:56,149 INFO L226 Difference]: Without dead ends: 7483 [2024-11-10 17:27:56,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:56,150 INFO L432 NwaCegarLoop]: 2227 mSDtfsCounter, 2354 mSDsluCounter, 3521 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 5748 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:56,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 5748 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 17:27:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2024-11-10 17:27:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 5127. [2024-11-10 17:27:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4303 states have (on average 1.762026493144318) internal successors, (7582), 5102 states have internal predecessors, (7582), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 7632 transitions. [2024-11-10 17:27:56,233 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 7632 transitions. Word has length 38 [2024-11-10 17:27:56,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:56,233 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 7632 transitions. [2024-11-10 17:27:56,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:56,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 7632 transitions. [2024-11-10 17:27:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 17:27:56,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:56,241 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, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:56,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 17:27:56,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr915REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:56,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:56,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1148214010, now seen corresponding path program 1 times [2024-11-10 17:27:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:56,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726269499] [2024-11-10 17:27:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:56,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:56,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:56,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726269499] [2024-11-10 17:27:56,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726269499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:56,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:56,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:27:56,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426370764] [2024-11-10 17:27:56,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:56,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:27:56,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:56,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:27:56,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:27:56,362 INFO L87 Difference]: Start difference. First operand 5127 states and 7632 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:56,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:56,639 INFO L93 Difference]: Finished difference Result 5115 states and 7612 transitions. [2024-11-10 17:27:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:27:56,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 73 [2024-11-10 17:27:56,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:56,649 INFO L225 Difference]: With dead ends: 5115 [2024-11-10 17:27:56,650 INFO L226 Difference]: Without dead ends: 5115 [2024-11-10 17:27:56,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:56,651 INFO L432 NwaCegarLoop]: 2749 mSDtfsCounter, 21 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:56,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8215 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 17:27:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2024-11-10 17:27:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 5115. [2024-11-10 17:27:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 4291 states have (on average 1.7622931717548358) internal successors, (7562), 5090 states have internal predecessors, (7562), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 17:27:56,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 7612 transitions. [2024-11-10 17:27:56,718 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 7612 transitions. Word has length 73 [2024-11-10 17:27:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:56,718 INFO L471 AbstractCegarLoop]: Abstraction has 5115 states and 7612 transitions. [2024-11-10 17:27:56,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:56,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 7612 transitions. [2024-11-10 17:27:56,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 17:27:56,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:56,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:56,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 17:27:56,721 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr915REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:56,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:56,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2044010690, now seen corresponding path program 1 times [2024-11-10 17:27:56,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:56,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129965317] [2024-11-10 17:27:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:56,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:56,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129965317] [2024-11-10 17:27:56,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129965317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:56,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:56,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:27:56,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039232559] [2024-11-10 17:27:56,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:56,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:27:56,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:56,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:27:56,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:56,859 INFO L87 Difference]: Start difference. First operand 5115 states and 7612 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:57,127 INFO L93 Difference]: Finished difference Result 6648 states and 9820 transitions. [2024-11-10 17:27:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:27:57,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2024-11-10 17:27:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:57,142 INFO L225 Difference]: With dead ends: 6648 [2024-11-10 17:27:57,142 INFO L226 Difference]: Without dead ends: 6648 [2024-11-10 17:27:57,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:27:57,144 INFO L432 NwaCegarLoop]: 2766 mSDtfsCounter, 1097 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 5468 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:57,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 5468 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 17:27:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2024-11-10 17:27:57,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 5984. [2024-11-10 17:27:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 5156 states have (on average 1.7447633824670288) internal successors, (8996), 5955 states have internal predecessors, (8996), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 17:27:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 9054 transitions. [2024-11-10 17:27:57,228 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 9054 transitions. Word has length 81 [2024-11-10 17:27:57,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:57,229 INFO L471 AbstractCegarLoop]: Abstraction has 5984 states and 9054 transitions. [2024-11-10 17:27:57,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:57,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 9054 transitions. [2024-11-10 17:27:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-10 17:27:57,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:57,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:57,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 17:27:57,230 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr886REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:57,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:57,231 INFO L85 PathProgramCache]: Analyzing trace with hash 924536959, now seen corresponding path program 1 times [2024-11-10 17:27:57,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:57,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081192170] [2024-11-10 17:27:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:57,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:57,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:57,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081192170] [2024-11-10 17:27:57,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081192170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:57,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:57,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:27:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828161639] [2024-11-10 17:27:57,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:57,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:27:57,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:27:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:27:57,721 INFO L87 Difference]: Start difference. First operand 5984 states and 9054 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:59,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:27:59,591 INFO L93 Difference]: Finished difference Result 5900 states and 8855 transitions. [2024-11-10 17:27:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:27:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 84 [2024-11-10 17:27:59,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:27:59,602 INFO L225 Difference]: With dead ends: 5900 [2024-11-10 17:27:59,603 INFO L226 Difference]: Without dead ends: 5900 [2024-11-10 17:27:59,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:27:59,604 INFO L432 NwaCegarLoop]: 1481 mSDtfsCounter, 2701 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:27:59,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2969 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 17:27:59,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2024-11-10 17:27:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5340. [2024-11-10 17:27:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 4596 states have (on average 1.7003916449086163) internal successors, (7815), 5311 states have internal predecessors, (7815), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 17:27:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 7873 transitions. [2024-11-10 17:27:59,709 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 7873 transitions. Word has length 84 [2024-11-10 17:27:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:27:59,709 INFO L471 AbstractCegarLoop]: Abstraction has 5340 states and 7873 transitions. [2024-11-10 17:27:59,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:27:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 7873 transitions. [2024-11-10 17:27:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 17:27:59,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:27:59,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:27:59,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 17:27:59,711 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr879REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:27:59,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:27:59,712 INFO L85 PathProgramCache]: Analyzing trace with hash 137439817, now seen corresponding path program 1 times [2024-11-10 17:27:59,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:27:59,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230013807] [2024-11-10 17:27:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:27:59,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:27:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:27:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:27:59,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:27:59,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230013807] [2024-11-10 17:27:59,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230013807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:27:59,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:27:59,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:27:59,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513177635] [2024-11-10 17:27:59,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:27:59,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:27:59,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:27:59,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:27:59,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:27:59,973 INFO L87 Difference]: Start difference. First operand 5340 states and 7873 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:28:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:01,494 INFO L93 Difference]: Finished difference Result 5339 states and 7871 transitions. [2024-11-10 17:28:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:28:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 89 [2024-11-10 17:28:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:01,514 INFO L225 Difference]: With dead ends: 5339 [2024-11-10 17:28:01,514 INFO L226 Difference]: Without dead ends: 5339 [2024-11-10 17:28:01,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:28:01,515 INFO L432 NwaCegarLoop]: 2676 mSDtfsCounter, 2 mSDsluCounter, 5537 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8213 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:01,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8213 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 17:28:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2024-11-10 17:28:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2024-11-10 17:28:01,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 4596 states have (on average 1.6999564838990426) internal successors, (7813), 5310 states have internal predecessors, (7813), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 17:28:01,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7871 transitions. [2024-11-10 17:28:01,640 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7871 transitions. Word has length 89 [2024-11-10 17:28:01,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:01,640 INFO L471 AbstractCegarLoop]: Abstraction has 5339 states and 7871 transitions. [2024-11-10 17:28:01,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:28:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7871 transitions. [2024-11-10 17:28:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 17:28:01,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:01,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:01,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 17:28:01,645 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr880REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:01,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash 137439818, now seen corresponding path program 1 times [2024-11-10 17:28:01,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:01,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254960932] [2024-11-10 17:28:01,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:01,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:02,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:02,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254960932] [2024-11-10 17:28:02,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254960932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:28:02,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:28:02,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:28:02,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277866051] [2024-11-10 17:28:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:28:02,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:28:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:28:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:28:02,230 INFO L87 Difference]: Start difference. First operand 5339 states and 7871 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:28:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:04,077 INFO L93 Difference]: Finished difference Result 5338 states and 7869 transitions. [2024-11-10 17:28:04,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:28:04,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 89 [2024-11-10 17:28:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:04,085 INFO L225 Difference]: With dead ends: 5338 [2024-11-10 17:28:04,086 INFO L226 Difference]: Without dead ends: 5338 [2024-11-10 17:28:04,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:28:04,086 INFO L432 NwaCegarLoop]: 2676 mSDtfsCounter, 1 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8193 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:04,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8193 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 17:28:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2024-11-10 17:28:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 5338. [2024-11-10 17:28:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 4594 states have (on average 1.7002612102742707) internal successors, (7811), 5309 states have internal predecessors, (7811), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 17:28:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 7869 transitions. [2024-11-10 17:28:04,181 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 7869 transitions. Word has length 89 [2024-11-10 17:28:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:04,181 INFO L471 AbstractCegarLoop]: Abstraction has 5338 states and 7869 transitions. [2024-11-10 17:28:04,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:28:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 7869 transitions. [2024-11-10 17:28:04,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-10 17:28:04,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:04,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:04,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 17:28:04,183 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr875REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:04,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1644512198, now seen corresponding path program 1 times [2024-11-10 17:28:04,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:04,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243710275] [2024-11-10 17:28:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:04,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:04,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:04,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243710275] [2024-11-10 17:28:04,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243710275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:28:04,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:28:04,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:28:04,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928115329] [2024-11-10 17:28:04,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:28:04,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:28:04,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:04,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:28:04,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:28:04,438 INFO L87 Difference]: Start difference. First operand 5338 states and 7869 transitions. Second operand has 7 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:06,812 INFO L93 Difference]: Finished difference Result 5356 states and 7904 transitions. [2024-11-10 17:28:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 17:28:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-11-10 17:28:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:06,823 INFO L225 Difference]: With dead ends: 5356 [2024-11-10 17:28:06,824 INFO L226 Difference]: Without dead ends: 5356 [2024-11-10 17:28:06,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 17:28:06,824 INFO L432 NwaCegarLoop]: 2640 mSDtfsCounter, 31 mSDsluCounter, 10095 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 12735 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:06,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 12735 Invalid, 3976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-10 17:28:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2024-11-10 17:28:06,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 5347. [2024-11-10 17:28:06,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 4602 states have (on average 1.6996957844415472) internal successors, (7822), 5316 states have internal predecessors, (7822), 29 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (43), 28 states have call predecessors, (43), 29 states have call successors, (43) [2024-11-10 17:28:06,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 7894 transitions. [2024-11-10 17:28:06,902 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 7894 transitions. Word has length 97 [2024-11-10 17:28:06,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:06,903 INFO L471 AbstractCegarLoop]: Abstraction has 5347 states and 7894 transitions. [2024-11-10 17:28:06,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:06,903 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 7894 transitions. [2024-11-10 17:28:06,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-10 17:28:06,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:06,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:06,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 17:28:06,904 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr876REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:06,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1644512199, now seen corresponding path program 1 times [2024-11-10 17:28:06,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:06,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885327547] [2024-11-10 17:28:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:06,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:07,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:07,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:07,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885327547] [2024-11-10 17:28:07,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885327547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:28:07,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:28:07,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:28:07,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904605521] [2024-11-10 17:28:07,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:28:07,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:28:07,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:28:07,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:28:07,443 INFO L87 Difference]: Start difference. First operand 5347 states and 7894 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:09,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:09,626 INFO L93 Difference]: Finished difference Result 5347 states and 7892 transitions. [2024-11-10 17:28:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:28:09,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-11-10 17:28:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:09,635 INFO L225 Difference]: With dead ends: 5347 [2024-11-10 17:28:09,635 INFO L226 Difference]: Without dead ends: 5347 [2024-11-10 17:28:09,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 17:28:09,636 INFO L432 NwaCegarLoop]: 2647 mSDtfsCounter, 26 mSDsluCounter, 10099 mSDsCounter, 0 mSdLazyCounter, 3914 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 12746 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:09,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 12746 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3914 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-10 17:28:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5347 states. [2024-11-10 17:28:09,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5347 to 5347. [2024-11-10 17:28:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 4602 states have (on average 1.6992611907866144) internal successors, (7820), 5316 states have internal predecessors, (7820), 29 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (43), 28 states have call predecessors, (43), 29 states have call successors, (43) [2024-11-10 17:28:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 7892 transitions. [2024-11-10 17:28:09,714 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 7892 transitions. Word has length 97 [2024-11-10 17:28:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:09,715 INFO L471 AbstractCegarLoop]: Abstraction has 5347 states and 7892 transitions. [2024-11-10 17:28:09,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 7892 transitions. [2024-11-10 17:28:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 17:28:09,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:09,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:09,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 17:28:09,717 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr875REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:09,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:09,718 INFO L85 PathProgramCache]: Analyzing trace with hash -419796283, now seen corresponding path program 1 times [2024-11-10 17:28:09,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:09,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589206890] [2024-11-10 17:28:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:09,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:10,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:10,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:10,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589206890] [2024-11-10 17:28:10,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589206890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:28:10,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055442153] [2024-11-10 17:28:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:10,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:28:10,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:28:10,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:28:10,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 17:28:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:10,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 17:28:10,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:28:10,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-10 17:28:10,746 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-10 17:28:10,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-10 17:28:10,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-10 17:28:10,873 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 22 treesize of output 10 [2024-11-10 17:28:11,053 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:28:11,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-10 17:28:11,112 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 31 treesize of output 13 [2024-11-10 17:28:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:11,149 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:28:11,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055442153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:28:11,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:28:11,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-10 17:28:11,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265051408] [2024-11-10 17:28:11,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:28:11,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 17:28:11,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:11,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 17:28:11,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=321, Unknown=5, NotChecked=0, Total=380 [2024-11-10 17:28:11,262 INFO L87 Difference]: Start difference. First operand 5347 states and 7892 transitions. Second operand has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 17:28:17,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:17,599 INFO L93 Difference]: Finished difference Result 5354 states and 7898 transitions. [2024-11-10 17:28:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 17:28:17,600 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2024-11-10 17:28:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:17,608 INFO L225 Difference]: With dead ends: 5354 [2024-11-10 17:28:17,608 INFO L226 Difference]: Without dead ends: 5354 [2024-11-10 17:28:17,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=508, Unknown=5, NotChecked=0, Total=600 [2024-11-10 17:28:17,609 INFO L432 NwaCegarLoop]: 1823 mSDtfsCounter, 2697 mSDsluCounter, 21613 mSDsCounter, 0 mSdLazyCounter, 12812 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 23436 SdHoareTripleChecker+Invalid, 12838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:17,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 23436 Invalid, 12838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 12812 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-10 17:28:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-11-10 17:28:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5351. [2024-11-10 17:28:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 4606 states have (on average 1.6984368215371255) internal successors, (7823), 5319 states have internal predecessors, (7823), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-10 17:28:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 7883 transitions. [2024-11-10 17:28:17,686 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 7883 transitions. Word has length 98 [2024-11-10 17:28:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:17,687 INFO L471 AbstractCegarLoop]: Abstraction has 5351 states and 7883 transitions. [2024-11-10 17:28:17,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 17:28:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 7883 transitions. [2024-11-10 17:28:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 17:28:17,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:17,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:17,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 17:28:17,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:28:17,890 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr876REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash -419796282, now seen corresponding path program 1 times [2024-11-10 17:28:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:17,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355325219] [2024-11-10 17:28:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:18,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:18,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:18,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355325219] [2024-11-10 17:28:18,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355325219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:28:18,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272356340] [2024-11-10 17:28:18,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:18,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:28:18,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:28:18,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:28:18,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 17:28:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:18,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-10 17:28:18,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:28:18,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-10 17:28:19,107 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:28:19,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-10 17:28:19,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-10 17:28:19,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-10 17:28:19,143 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 13 treesize of output 9 [2024-11-10 17:28:19,216 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 22 treesize of output 10 [2024-11-10 17:28:19,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-10 17:28:19,313 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:28:19,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-10 17:28:19,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-10 17:28:19,356 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 31 treesize of output 13 [2024-11-10 17:28:19,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-10 17:28:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:19,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:28:19,490 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_827 (Array Int Int)) (v_ArrVal_826 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_826) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_827 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-10 17:28:19,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272356340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:28:19,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:28:19,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-10 17:28:19,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193383767] [2024-11-10 17:28:19,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:28:19,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 17:28:19,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:19,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 17:28:19,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=360, Unknown=1, NotChecked=38, Total=462 [2024-11-10 17:28:19,495 INFO L87 Difference]: Start difference. First operand 5351 states and 7883 transitions. Second operand has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 17:28:25,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:25,584 INFO L93 Difference]: Finished difference Result 5353 states and 7896 transitions. [2024-11-10 17:28:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 17:28:25,584 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2024-11-10 17:28:25,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:25,590 INFO L225 Difference]: With dead ends: 5353 [2024-11-10 17:28:25,590 INFO L226 Difference]: Without dead ends: 5353 [2024-11-10 17:28:25,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=550, Unknown=1, NotChecked=48, Total=702 [2024-11-10 17:28:25,591 INFO L432 NwaCegarLoop]: 1829 mSDtfsCounter, 2714 mSDsluCounter, 15440 mSDsCounter, 0 mSdLazyCounter, 13420 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 17269 SdHoareTripleChecker+Invalid, 13466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 13420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:25,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 17269 Invalid, 13466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 13420 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-10 17:28:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-10 17:28:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5341. [2024-11-10 17:28:25,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 4598 states have (on average 1.6989995650282732) internal successors, (7812), 5311 states have internal predecessors, (7812), 29 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 17:28:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 7870 transitions. [2024-11-10 17:28:25,654 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 7870 transitions. Word has length 98 [2024-11-10 17:28:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:25,654 INFO L471 AbstractCegarLoop]: Abstraction has 5341 states and 7870 transitions. [2024-11-10 17:28:25,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.6875) internal successors, (155), 18 states have internal predecessors, (155), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 17:28:25,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 7870 transitions. [2024-11-10 17:28:25,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 17:28:25,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:25,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:25,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 17:28:25,859 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,SelfDestructingSolverStorable19 [2024-11-10 17:28:25,860 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr871REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:25,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1026074960, now seen corresponding path program 1 times [2024-11-10 17:28:25,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:25,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283798646] [2024-11-10 17:28:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:25,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:26,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:26,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:26,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283798646] [2024-11-10 17:28:26,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283798646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:28:26,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:28:26,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 17:28:26,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031983801] [2024-11-10 17:28:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:28:26,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 17:28:26,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:26,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 17:28:26,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-10 17:28:26,377 INFO L87 Difference]: Start difference. First operand 5341 states and 7870 transitions. Second operand has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:30,308 INFO L93 Difference]: Finished difference Result 5360 states and 7904 transitions. [2024-11-10 17:28:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 17:28:30,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2024-11-10 17:28:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:30,316 INFO L225 Difference]: With dead ends: 5360 [2024-11-10 17:28:30,316 INFO L226 Difference]: Without dead ends: 5360 [2024-11-10 17:28:30,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-10 17:28:30,317 INFO L432 NwaCegarLoop]: 1823 mSDtfsCounter, 2715 mSDsluCounter, 16193 mSDsCounter, 0 mSdLazyCounter, 9844 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 18016 SdHoareTripleChecker+Invalid, 9868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 9844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:30,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 18016 Invalid, 9868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 9844 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-10 17:28:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2024-11-10 17:28:30,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5356. [2024-11-10 17:28:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 4612 states have (on average 1.6975281873373806) internal successors, (7829), 5324 states have internal predecessors, (7829), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-10 17:28:30,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 7889 transitions. [2024-11-10 17:28:30,387 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 7889 transitions. Word has length 100 [2024-11-10 17:28:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:30,387 INFO L471 AbstractCegarLoop]: Abstraction has 5356 states and 7889 transitions. [2024-11-10 17:28:30,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 7889 transitions. [2024-11-10 17:28:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 17:28:30,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:30,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:30,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 17:28:30,389 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr872REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:30,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1026074959, now seen corresponding path program 1 times [2024-11-10 17:28:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:30,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968724146] [2024-11-10 17:28:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:31,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:31,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:31,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968724146] [2024-11-10 17:28:31,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968724146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:28:31,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:28:31,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 17:28:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424913312] [2024-11-10 17:28:31,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:28:31,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 17:28:31,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 17:28:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-10 17:28:31,056 INFO L87 Difference]: Start difference. First operand 5356 states and 7889 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:35,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:35,851 INFO L93 Difference]: Finished difference Result 5359 states and 7902 transitions. [2024-11-10 17:28:35,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 17:28:35,852 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2024-11-10 17:28:35,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:35,858 INFO L225 Difference]: With dead ends: 5359 [2024-11-10 17:28:35,859 INFO L226 Difference]: Without dead ends: 5359 [2024-11-10 17:28:35,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-10 17:28:35,859 INFO L432 NwaCegarLoop]: 1830 mSDtfsCounter, 2726 mSDsluCounter, 12596 mSDsCounter, 0 mSdLazyCounter, 10629 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 14426 SdHoareTripleChecker+Invalid, 10651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 10629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:35,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 14426 Invalid, 10651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 10629 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-10 17:28:35,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5359 states. [2024-11-10 17:28:35,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5359 to 5356. [2024-11-10 17:28:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 4612 states have (on average 1.6970945359930616) internal successors, (7827), 5324 states have internal predecessors, (7827), 29 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31) [2024-11-10 17:28:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 7887 transitions. [2024-11-10 17:28:35,922 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 7887 transitions. Word has length 100 [2024-11-10 17:28:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:28:35,922 INFO L471 AbstractCegarLoop]: Abstraction has 5356 states and 7887 transitions. [2024-11-10 17:28:35,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:28:35,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 7887 transitions. [2024-11-10 17:28:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 17:28:35,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:28:35,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:28:35,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 17:28:35,924 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr871REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-10 17:28:35,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:28:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash 796678993, now seen corresponding path program 1 times [2024-11-10 17:28:35,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:28:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477630921] [2024-11-10 17:28:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:35,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:28:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:36,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 17:28:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:36,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:28:36,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477630921] [2024-11-10 17:28:36,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477630921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:28:36,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029027073] [2024-11-10 17:28:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:28:36,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:28:36,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:28:36,485 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) [2024-11-10 17:28:36,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 17:28:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:28:36,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-10 17:28:36,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:28:36,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-10 17:28:36,941 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-10 17:28:36,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-10 17:28:36,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-10 17:28:37,050 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 22 treesize of output 10 [2024-11-10 17:28:37,187 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:28:37,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-10 17:28:37,275 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:28:37,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-10 17:28:37,288 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 31 treesize of output 13 [2024-11-10 17:28:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:28:37,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:28:37,422 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1117 (Array Int Int)) (v_ArrVal_1114 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1117))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1114)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-10 17:28:37,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029027073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:28:37,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:28:37,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-10 17:28:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201192285] [2024-11-10 17:28:37,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:28:37,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 17:28:37,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:28:37,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 17:28:37,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=465, Unknown=11, NotChecked=44, Total=600 [2024-11-10 17:28:37,426 INFO L87 Difference]: Start difference. First operand 5356 states and 7887 transitions. Second operand has 22 states, 19 states have (on average 8.473684210526315) internal successors, (161), 21 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 17:28:44,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:28:44,054 INFO L93 Difference]: Finished difference Result 5358 states and 7900 transitions. [2024-11-10 17:28:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 17:28:44,055 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.473684210526315) internal successors, (161), 21 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 101 [2024-11-10 17:28:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:28:44,062 INFO L225 Difference]: With dead ends: 5358 [2024-11-10 17:28:44,062 INFO L226 Difference]: Without dead ends: 5358 [2024-11-10 17:28:44,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=640, Unknown=12, NotChecked=52, Total=812 [2024-11-10 17:28:44,063 INFO L432 NwaCegarLoop]: 1822 mSDtfsCounter, 2686 mSDsluCounter, 25193 mSDsCounter, 0 mSdLazyCounter, 14779 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 27015 SdHoareTripleChecker+Invalid, 14804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 14779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-10 17:28:44,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 27015 Invalid, 14804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 14779 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-10 17:28:44,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states.