./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-1.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_JEN_nondet_test1-1.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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:29:30,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:29:31,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:29:31,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:29:31,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:29:31,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:29:31,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:29:31,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:29:31,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:29:31,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:29:31,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:29:31,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:29:31,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:29:31,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:29:31,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:29:31,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:29:31,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:29:31,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:29:31,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:29:31,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:29:31,083 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:29:31,083 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:29:31,084 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:29:31,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:29:31,084 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:29:31,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:29:31,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:29:31,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:29:31,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:29:31,085 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:29:31,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:29:31,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:29:31,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:29:31,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:29:31,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:29:31,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:29:31,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:29:31,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:29:31,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:29:31,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:29:31,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:29:31,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:29:31,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2024-11-10 17:29:31,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:29:31,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:29:31,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:29:31,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:29:31,348 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:29:31,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-1.i [2024-11-10 17:29:32,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:29:33,095 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:29:33,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-1.i [2024-11-10 17:29:33,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4f04f7a/f5b54aab333143cc96a474a96454c81c/FLAG0b074ac2e [2024-11-10 17:29:33,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4f04f7a/f5b54aab333143cc96a474a96454c81c [2024-11-10 17:29:33,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:29:33,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:29:33,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:29:33,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:29:33,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:29:33,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:29:33" (1/1) ... [2024-11-10 17:29:33,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326cd2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33, skipping insertion in model container [2024-11-10 17:29:33,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:29:33" (1/1) ... [2024-11-10 17:29:33,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:29:33,865 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 17:29:33,911 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 17:29:33,916 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 17:29:33,922 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 17:29:33,933 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 17:29:33,950 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 17:29:33,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:29:33,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:29:34,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:29:34,105 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:29:34,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34 WrapperNode [2024-11-10 17:29:34,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:29:34,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:29:34,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:29:34,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:29:34,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,192 INFO L138 Inliner]: procedures = 176, calls = 170, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 787 [2024-11-10 17:29:34,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:29:34,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:29:34,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:29:34,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:29:34,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,277 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-11-10 17:29:34,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,322 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:29:34,341 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:29:34,342 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:29:34,342 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:29:34,343 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (1/1) ... [2024-11-10 17:29:34,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:29:34,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:29:34,378 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 17:29:34,384 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 17:29:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 17:29:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 17:29:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 17:29:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 17:29:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-10 17:29:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-10 17:29:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-10 17:29:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:29:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 17:29:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:29:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:29:34,603 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:29:34,605 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:29:36,080 INFO L? ?]: Removed 762 outVars from TransFormulas that were not future-live. [2024-11-10 17:29:36,080 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:29:36,149 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:29:36,152 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-10 17:29:36,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:29:36 BoogieIcfgContainer [2024-11-10 17:29:36,153 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:29:36,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:29:36,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:29:36,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:29:36,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:29:33" (1/3) ... [2024-11-10 17:29:36,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35daf5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:29:36, skipping insertion in model container [2024-11-10 17:29:36,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:34" (2/3) ... [2024-11-10 17:29:36,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35daf5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:29:36, skipping insertion in model container [2024-11-10 17:29:36,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:29:36" (3/3) ... [2024-11-10 17:29:36,163 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test1-1.i [2024-11-10 17:29:36,180 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:29:36,181 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 320 error locations. [2024-11-10 17:29:36,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:29:36,263 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;@6781fe43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:29:36,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 320 error locations. [2024-11-10 17:29:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 751 states, 429 states have (on average 2.027972027972028) internal successors, (870), 746 states have internal predecessors, (870), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-10 17:29:36,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:36,282 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:29:36,282 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr318REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:36,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1771376733, now seen corresponding path program 1 times [2024-11-10 17:29:36,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:36,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575479125] [2024-11-10 17:29:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:36,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:36,451 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 17:29:36,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:36,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575479125] [2024-11-10 17:29:36,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575479125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:36,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:36,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:29:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546395913] [2024-11-10 17:29:36,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:36,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 17:29:36,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 17:29:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 17:29:36,491 INFO L87 Difference]: Start difference. First operand has 751 states, 429 states have (on average 2.027972027972028) internal successors, (870), 746 states have internal predecessors, (870), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 17:29:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:36,594 INFO L93 Difference]: Finished difference Result 740 states and 828 transitions. [2024-11-10 17:29:36,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 17:29:36,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-10 17:29:36,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:36,611 INFO L225 Difference]: With dead ends: 740 [2024-11-10 17:29:36,611 INFO L226 Difference]: Without dead ends: 737 [2024-11-10 17:29:36,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 17:29:36,616 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:36,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 806 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 17:29:36,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-10 17:29:36,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2024-11-10 17:29:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 421 states have (on average 1.9453681710213777) internal successors, (819), 732 states have internal predecessors, (819), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 825 transitions. [2024-11-10 17:29:36,705 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 825 transitions. Word has length 6 [2024-11-10 17:29:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:36,705 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 825 transitions. [2024-11-10 17:29:36,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 17:29:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 825 transitions. [2024-11-10 17:29:36,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-10 17:29:36,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:36,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:29:36,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:29:36,707 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr318REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:36,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:36,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1771376764, now seen corresponding path program 1 times [2024-11-10 17:29:36,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:36,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88925712] [2024-11-10 17:29:36,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:36,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:36,799 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 17:29:36,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:36,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88925712] [2024-11-10 17:29:36,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88925712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:36,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:36,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:29:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9896457] [2024-11-10 17:29:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:36,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:29:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:29:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:29:36,804 INFO L87 Difference]: Start difference. First operand 737 states and 825 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:29:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:37,366 INFO L93 Difference]: Finished difference Result 691 states and 780 transitions. [2024-11-10 17:29:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:29:37,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-10 17:29:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:37,369 INFO L225 Difference]: With dead ends: 691 [2024-11-10 17:29:37,370 INFO L226 Difference]: Without dead ends: 691 [2024-11-10 17:29:37,370 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 17:29:37,371 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 688 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:37,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 459 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 17:29:37,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-10 17:29:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 688. [2024-11-10 17:29:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 421 states have (on average 1.828978622327791) internal successors, (770), 683 states have internal predecessors, (770), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 776 transitions. [2024-11-10 17:29:37,392 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 776 transitions. Word has length 6 [2024-11-10 17:29:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:37,393 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 776 transitions. [2024-11-10 17:29:37,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:29:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 776 transitions. [2024-11-10 17:29:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-10 17:29:37,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:37,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 17:29:37,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:29:37,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr319REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:37,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1771376765, now seen corresponding path program 1 times [2024-11-10 17:29:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:37,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598045166] [2024-11-10 17:29:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:37,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:37,501 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 17:29:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598045166] [2024-11-10 17:29:37,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598045166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:37,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:37,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 17:29:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662551782] [2024-11-10 17:29:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:37,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:29:37,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:29:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:29:37,506 INFO L87 Difference]: Start difference. First operand 688 states and 776 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:29:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:37,995 INFO L93 Difference]: Finished difference Result 768 states and 862 transitions. [2024-11-10 17:29:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:29:37,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-10 17:29:37,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:37,998 INFO L225 Difference]: With dead ends: 768 [2024-11-10 17:29:37,998 INFO L226 Difference]: Without dead ends: 768 [2024-11-10 17:29:37,998 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 17:29:37,999 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 422 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:38,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 824 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 17:29:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-10 17:29:38,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 719. [2024-11-10 17:29:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 463 states have (on average 1.8142548596112311) internal successors, (840), 714 states have internal predecessors, (840), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 846 transitions. [2024-11-10 17:29:38,024 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 846 transitions. Word has length 6 [2024-11-10 17:29:38,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:38,024 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 846 transitions. [2024-11-10 17:29:38,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:29:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 846 transitions. [2024-11-10 17:29:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 17:29:38,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:38,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:29:38,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:29:38,025 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:38,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:38,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1457821496, now seen corresponding path program 1 times [2024-11-10 17:29:38,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035404680] [2024-11-10 17:29:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:38,058 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 17:29:38,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:38,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035404680] [2024-11-10 17:29:38,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035404680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:38,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:38,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:29:38,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106246626] [2024-11-10 17:29:38,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:38,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:29:38,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:38,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:29:38,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:29:38,061 INFO L87 Difference]: Start difference. First operand 719 states and 846 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:29:38,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:38,146 INFO L93 Difference]: Finished difference Result 1412 states and 1665 transitions. [2024-11-10 17:29:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:29:38,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:29:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:38,153 INFO L225 Difference]: With dead ends: 1412 [2024-11-10 17:29:38,153 INFO L226 Difference]: Without dead ends: 1412 [2024-11-10 17:29:38,154 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 17:29:38,155 INFO L432 NwaCegarLoop]: 969 mSDtfsCounter, 730 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:38,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1707 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 17:29:38,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-10 17:29:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 721. [2024-11-10 17:29:38,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 465 states have (on average 1.810752688172043) internal successors, (842), 716 states have internal predecessors, (842), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 848 transitions. [2024-11-10 17:29:38,179 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 848 transitions. Word has length 8 [2024-11-10 17:29:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:38,179 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 848 transitions. [2024-11-10 17:29:38,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:29:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 848 transitions. [2024-11-10 17:29:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-10 17:29:38,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:38,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:29:38,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:29:38,181 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr312REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:38,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1558433268, now seen corresponding path program 1 times [2024-11-10 17:29:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:38,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293739785] [2024-11-10 17:29:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:38,305 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 17:29:38,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:38,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293739785] [2024-11-10 17:29:38,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293739785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:38,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:38,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:29:38,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737359586] [2024-11-10 17:29:38,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:38,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:29:38,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:29:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:29:38,308 INFO L87 Difference]: Start difference. First operand 721 states and 848 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17:29:38,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:38,884 INFO L93 Difference]: Finished difference Result 747 states and 901 transitions. [2024-11-10 17:29:38,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:29:38,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-11-10 17:29:38,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:38,887 INFO L225 Difference]: With dead ends: 747 [2024-11-10 17:29:38,887 INFO L226 Difference]: Without dead ends: 747 [2024-11-10 17:29:38,887 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 17:29:38,888 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 952 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:38,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 721 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 17:29:38,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-10 17:29:38,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 698. [2024-11-10 17:29:38,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 465 states have (on average 1.761290322580645) internal successors, (819), 693 states have internal predecessors, (819), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 825 transitions. [2024-11-10 17:29:38,904 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 825 transitions. Word has length 17 [2024-11-10 17:29:38,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:38,905 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 825 transitions. [2024-11-10 17:29:38,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17:29:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 825 transitions. [2024-11-10 17:29:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-10 17:29:38,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:38,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:29:38,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 17:29:38,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr313REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:38,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:38,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1558433269, now seen corresponding path program 1 times [2024-11-10 17:29:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283440921] [2024-11-10 17:29:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:39,017 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 17:29:39,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:39,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283440921] [2024-11-10 17:29:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283440921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:39,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:39,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:29:39,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577156600] [2024-11-10 17:29:39,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:39,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:29:39,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:39,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:29:39,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:29:39,020 INFO L87 Difference]: Start difference. First operand 698 states and 825 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17:29:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:39,077 INFO L93 Difference]: Finished difference Result 623 states and 722 transitions. [2024-11-10 17:29:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:29:39,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2024-11-10 17:29:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:39,081 INFO L225 Difference]: With dead ends: 623 [2024-11-10 17:29:39,081 INFO L226 Difference]: Without dead ends: 623 [2024-11-10 17:29:39,081 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 17:29:39,082 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 61 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:39,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1174 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 17:29:39,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-10 17:29:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 623. [2024-11-10 17:29:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 402 states have (on average 1.7810945273631842) internal successors, (716), 618 states have internal predecessors, (716), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:39,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 722 transitions. [2024-11-10 17:29:39,095 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 722 transitions. Word has length 17 [2024-11-10 17:29:39,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:39,095 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 722 transitions. [2024-11-10 17:29:39,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17:29:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 722 transitions. [2024-11-10 17:29:39,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-10 17:29:39,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:39,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:29:39,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 17:29:39,097 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr289REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:39,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:39,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1289340968, now seen corresponding path program 1 times [2024-11-10 17:29:39,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:39,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139025307] [2024-11-10 17:29:39,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:39,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:39,190 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 17:29:39,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139025307] [2024-11-10 17:29:39,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139025307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:39,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:29:39,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731148591] [2024-11-10 17:29:39,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:39,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:29:39,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:29:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:29:39,195 INFO L87 Difference]: Start difference. First operand 623 states and 722 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 17:29:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:39,274 INFO L93 Difference]: Finished difference Result 605 states and 697 transitions. [2024-11-10 17:29:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:29:39,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-10 17:29:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:39,278 INFO L225 Difference]: With dead ends: 605 [2024-11-10 17:29:39,278 INFO L226 Difference]: Without dead ends: 605 [2024-11-10 17:29:39,278 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 17:29:39,279 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 41 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:39,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1708 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 17:29:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-10 17:29:39,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 602. [2024-11-10 17:29:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 388 states have (on average 1.7731958762886597) internal successors, (688), 597 states have internal predecessors, (688), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 694 transitions. [2024-11-10 17:29:39,295 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 694 transitions. Word has length 19 [2024-11-10 17:29:39,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:39,297 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 694 transitions. [2024-11-10 17:29:39,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 17:29:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 694 transitions. [2024-11-10 17:29:39,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-10 17:29:39,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:39,299 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] [2024-11-10 17:29:39,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 17:29:39,299 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr275REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:39,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:39,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1141935218, now seen corresponding path program 1 times [2024-11-10 17:29:39,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:39,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376820983] [2024-11-10 17:29:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:39,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:39,476 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 17:29:39,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:39,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376820983] [2024-11-10 17:29:39,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376820983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:39,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:39,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:29:39,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137165334] [2024-11-10 17:29:39,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:39,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:29:39,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:29:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:29:39,479 INFO L87 Difference]: Start difference. First operand 602 states and 694 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 17:29:40,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:40,049 INFO L93 Difference]: Finished difference Result 696 states and 782 transitions. [2024-11-10 17:29:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 17:29:40,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-11-10 17:29:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:40,052 INFO L225 Difference]: With dead ends: 696 [2024-11-10 17:29:40,052 INFO L226 Difference]: Without dead ends: 696 [2024-11-10 17:29:40,052 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 17:29:40,053 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 423 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:40,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1015 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 17:29:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-10 17:29:40,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 598. [2024-11-10 17:29:40,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 388 states have (on average 1.7628865979381443) internal successors, (684), 593 states have internal predecessors, (684), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 690 transitions. [2024-11-10 17:29:40,065 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 690 transitions. Word has length 33 [2024-11-10 17:29:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:40,065 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 690 transitions. [2024-11-10 17:29:40,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 17:29:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 690 transitions. [2024-11-10 17:29:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-10 17:29:40,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:40,067 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] [2024-11-10 17:29:40,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 17:29:40,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr260REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:40,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash 522026093, now seen corresponding path program 1 times [2024-11-10 17:29:40,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:40,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611738582] [2024-11-10 17:29:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:40,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:40,179 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 17:29:40,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:40,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611738582] [2024-11-10 17:29:40,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611738582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:40,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:40,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:29:40,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802020991] [2024-11-10 17:29:40,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:40,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 17:29:40,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:40,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 17:29:40,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 17:29:40,186 INFO L87 Difference]: Start difference. First operand 598 states and 690 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 17:29:40,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:40,257 INFO L93 Difference]: Finished difference Result 598 states and 686 transitions. [2024-11-10 17:29:40,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:29:40,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2024-11-10 17:29:40,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:40,260 INFO L225 Difference]: With dead ends: 598 [2024-11-10 17:29:40,260 INFO L226 Difference]: Without dead ends: 598 [2024-11-10 17:29:40,261 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 17:29:40,261 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 21 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:40,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1690 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 17:29:40,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-10 17:29:40,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2024-11-10 17:29:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 388 states have (on average 1.7525773195876289) internal successors, (680), 593 states have internal predecessors, (680), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 686 transitions. [2024-11-10 17:29:40,271 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 686 transitions. Word has length 68 [2024-11-10 17:29:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:40,272 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 686 transitions. [2024-11-10 17:29:40,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 17:29:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 686 transitions. [2024-11-10 17:29:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-10 17:29:40,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:40,277 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] [2024-11-10 17:29:40,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 17:29:40,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr260REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:40,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1442682971, now seen corresponding path program 1 times [2024-11-10 17:29:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:40,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232134181] [2024-11-10 17:29:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:40,425 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 17:29:40,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:40,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232134181] [2024-11-10 17:29:40,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232134181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:40,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 17:29:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239617898] [2024-11-10 17:29:40,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:40,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:29:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:40,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:29:40,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:29:40,427 INFO L87 Difference]: Start difference. First operand 598 states and 686 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 17:29:40,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:40,494 INFO L93 Difference]: Finished difference Result 696 states and 811 transitions. [2024-11-10 17:29:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:29:40,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-10 17:29:40,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:40,497 INFO L225 Difference]: With dead ends: 696 [2024-11-10 17:29:40,497 INFO L226 Difference]: Without dead ends: 696 [2024-11-10 17:29:40,498 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 17:29:40,498 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 54 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:40,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1150 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 17:29:40,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-10 17:29:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2024-11-10 17:29:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 486 states have (on average 1.6563786008230452) internal successors, (805), 691 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 811 transitions. [2024-11-10 17:29:40,510 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 811 transitions. Word has length 76 [2024-11-10 17:29:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:40,511 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 811 transitions. [2024-11-10 17:29:40,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 17:29:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 811 transitions. [2024-11-10 17:29:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 17:29:40,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:40,512 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] [2024-11-10 17:29:40,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 17:29:40,513 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr231REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:40,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:40,513 INFO L85 PathProgramCache]: Analyzing trace with hash 767495880, now seen corresponding path program 1 times [2024-11-10 17:29:40,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:40,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566368851] [2024-11-10 17:29:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:40,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:40,983 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 17:29:40,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:40,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566368851] [2024-11-10 17:29:40,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566368851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:40,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:40,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:29:40,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512775375] [2024-11-10 17:29:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:40,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:29:40,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:40,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:29:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:29:40,986 INFO L87 Difference]: Start difference. First operand 696 states and 811 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 17:29:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:41,606 INFO L93 Difference]: Finished difference Result 658 states and 773 transitions. [2024-11-10 17:29:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 17:29:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2024-11-10 17:29:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:41,609 INFO L225 Difference]: With dead ends: 658 [2024-11-10 17:29:41,609 INFO L226 Difference]: Without dead ends: 658 [2024-11-10 17:29:41,609 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 17:29:41,610 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 481 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:41,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 482 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 17:29:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-10 17:29:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 616. [2024-11-10 17:29:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 444 states have (on average 1.545045045045045) internal successors, (686), 611 states have internal predecessors, (686), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 692 transitions. [2024-11-10 17:29:41,619 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 692 transitions. Word has length 79 [2024-11-10 17:29:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:41,620 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 692 transitions. [2024-11-10 17:29:41,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 17:29:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 692 transitions. [2024-11-10 17:29:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-10 17:29:41,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:41,621 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 17:29:41,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 17:29:41,622 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr224REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:41,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash -468622416, now seen corresponding path program 1 times [2024-11-10 17:29:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:41,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721391565] [2024-11-10 17:29:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:41,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:41,877 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 17:29:41,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:41,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721391565] [2024-11-10 17:29:41,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721391565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:41,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:41,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:29:41,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690840402] [2024-11-10 17:29:41,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:41,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:29:41,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:29:41,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:29:41,879 INFO L87 Difference]: Start difference. First operand 616 states and 692 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 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 17:29:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:42,406 INFO L93 Difference]: Finished difference Result 615 states and 691 transitions. [2024-11-10 17:29:42,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:29:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 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 17:29:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:42,409 INFO L225 Difference]: With dead ends: 615 [2024-11-10 17:29:42,409 INFO L226 Difference]: Without dead ends: 615 [2024-11-10 17:29:42,409 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 17:29:42,410 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 2 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:42,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1499 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 17:29:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-10 17:29:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-11-10 17:29:42,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 444 states have (on average 1.5427927927927927) internal successors, (685), 610 states have internal predecessors, (685), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 691 transitions. [2024-11-10 17:29:42,453 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 691 transitions. Word has length 84 [2024-11-10 17:29:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:42,453 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 691 transitions. [2024-11-10 17:29:42,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 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 17:29:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 691 transitions. [2024-11-10 17:29:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-10 17:29:42,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:42,455 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 17:29:42,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 17:29:42,455 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr225REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:42,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:42,456 INFO L85 PathProgramCache]: Analyzing trace with hash -468622415, now seen corresponding path program 1 times [2024-11-10 17:29:42,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:42,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990946560] [2024-11-10 17:29:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:42,907 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 17:29:42,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990946560] [2024-11-10 17:29:42,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990946560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:42,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:42,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:29:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94930005] [2024-11-10 17:29:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:42,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:29:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:29:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:29:42,911 INFO L87 Difference]: Start difference. First operand 615 states and 691 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 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 17:29:43,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:43,475 INFO L93 Difference]: Finished difference Result 614 states and 690 transitions. [2024-11-10 17:29:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:29:43,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 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 17:29:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:43,478 INFO L225 Difference]: With dead ends: 614 [2024-11-10 17:29:43,478 INFO L226 Difference]: Without dead ends: 614 [2024-11-10 17:29:43,478 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 17:29:43,478 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 1 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:43,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1511 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 17:29:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-10 17:29:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2024-11-10 17:29:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 443 states have (on average 1.5440180586907448) internal successors, (684), 609 states have internal predecessors, (684), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 690 transitions. [2024-11-10 17:29:43,488 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 690 transitions. Word has length 84 [2024-11-10 17:29:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:43,489 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 690 transitions. [2024-11-10 17:29:43,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 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 17:29:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 690 transitions. [2024-11-10 17:29:43,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 17:29:43,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:43,492 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] [2024-11-10 17:29:43,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 17:29:43,493 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr220REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:43,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:43,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1474976461, now seen corresponding path program 1 times [2024-11-10 17:29:43,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:43,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668438536] [2024-11-10 17:29:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:43,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:43,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:43,796 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 17:29:43,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:43,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668438536] [2024-11-10 17:29:43,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668438536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:43,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:43,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:29:43,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440419014] [2024-11-10 17:29:43,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:43,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:29:43,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:43,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:29:43,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:29:43,799 INFO L87 Difference]: Start difference. First operand 614 states and 690 transitions. Second operand has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 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 17:29:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:44,586 INFO L93 Difference]: Finished difference Result 626 states and 705 transitions. [2024-11-10 17:29:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 17:29:44,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 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 92 [2024-11-10 17:29:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:44,592 INFO L225 Difference]: With dead ends: 626 [2024-11-10 17:29:44,592 INFO L226 Difference]: Without dead ends: 626 [2024-11-10 17:29:44,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 17:29:44,593 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 10 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:44,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2313 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 17:29:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-10 17:29:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 620. [2024-11-10 17:29:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 448 states have (on average 1.5424107142857142) internal successors, (691), 614 states have internal predecessors, (691), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 17:29:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 700 transitions. [2024-11-10 17:29:44,609 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 700 transitions. Word has length 92 [2024-11-10 17:29:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:44,610 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 700 transitions. [2024-11-10 17:29:44,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 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 17:29:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 700 transitions. [2024-11-10 17:29:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 17:29:44,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:44,611 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] [2024-11-10 17:29:44,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 17:29:44,611 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr221REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:44,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1474976462, now seen corresponding path program 1 times [2024-11-10 17:29:44,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:44,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952569410] [2024-11-10 17:29:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:44,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:45,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:45,171 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 17:29:45,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:45,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952569410] [2024-11-10 17:29:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952569410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:45,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:45,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 17:29:45,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531855708] [2024-11-10 17:29:45,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 17:29:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:45,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 17:29:45,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 17:29:45,174 INFO L87 Difference]: Start difference. First operand 620 states and 700 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 17:29:45,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:45,881 INFO L93 Difference]: Finished difference Result 620 states and 699 transitions. [2024-11-10 17:29:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 17:29:45,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 92 [2024-11-10 17:29:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:45,884 INFO L225 Difference]: With dead ends: 620 [2024-11-10 17:29:45,884 INFO L226 Difference]: Without dead ends: 620 [2024-11-10 17:29:45,884 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 17:29:45,885 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 5 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:45,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2353 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 17:29:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-10 17:29:45,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2024-11-10 17:29:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 448 states have (on average 1.5401785714285714) internal successors, (690), 614 states have internal predecessors, (690), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 17:29:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 699 transitions. [2024-11-10 17:29:45,900 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 699 transitions. Word has length 92 [2024-11-10 17:29:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:45,900 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 699 transitions. [2024-11-10 17:29:45,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 17:29:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 699 transitions. [2024-11-10 17:29:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 17:29:45,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:45,901 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] [2024-11-10 17:29:45,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 17:29:45,902 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr220REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:45,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash 978680121, now seen corresponding path program 1 times [2024-11-10 17:29:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:45,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378020171] [2024-11-10 17:29:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:46,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:46,439 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 17:29:46,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:46,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378020171] [2024-11-10 17:29:46,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378020171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:46,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803450153] [2024-11-10 17:29:46,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:46,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:29:46,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:29:46,444 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 17:29:46,446 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 17:29:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:46,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-10 17:29:46,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:29:46,680 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 17:29:46,817 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:29:46,817 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 17:29:46,833 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 17:29:46,917 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:29:46,918 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 17:29:46,957 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 17:29:46,960 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 17:29:46,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:29:47,041 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2024-11-10 17:29:47,042 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 21 treesize of output 20 [2024-11-10 17:29:47,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803450153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:47,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:29:47,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2024-11-10 17:29:47,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920304786] [2024-11-10 17:29:47,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:29:47,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 17:29:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:47,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 17:29:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=196, Unknown=6, NotChecked=0, Total=240 [2024-11-10 17:29:47,088 INFO L87 Difference]: Start difference. First operand 620 states and 699 transitions. Second operand has 15 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:29:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:48,701 INFO L93 Difference]: Finished difference Result 619 states and 698 transitions. [2024-11-10 17:29:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 17:29:48,703 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2024-11-10 17:29:48,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:48,705 INFO L225 Difference]: With dead ends: 619 [2024-11-10 17:29:48,705 INFO L226 Difference]: Without dead ends: 619 [2024-11-10 17:29:48,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=453, Unknown=6, NotChecked=0, Total=552 [2024-11-10 17:29:48,706 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 485 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 3393 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:48,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 3393 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 17:29:48,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-10 17:29:48,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2024-11-10 17:29:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 448 states have (on average 1.5379464285714286) internal successors, (689), 613 states have internal predecessors, (689), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 17:29:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 698 transitions. [2024-11-10 17:29:48,718 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 698 transitions. Word has length 93 [2024-11-10 17:29:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:48,718 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 698 transitions. [2024-11-10 17:29:48,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:29:48,719 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 698 transitions. [2024-11-10 17:29:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 17:29:48,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:48,720 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] [2024-11-10 17:29:48,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 17:29:48,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 17:29:48,921 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr221REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:48,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:48,922 INFO L85 PathProgramCache]: Analyzing trace with hash 978680122, now seen corresponding path program 1 times [2024-11-10 17:29:48,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:48,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540639136] [2024-11-10 17:29:48,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:48,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:49,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:49,838 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 17:29:49,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:49,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540639136] [2024-11-10 17:29:49,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540639136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:49,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094846104] [2024-11-10 17:29:49,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:49,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:29:49,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:29:49,841 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 17:29:49,843 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 17:29:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:50,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-10 17:29:50,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:29:50,056 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 17:29:50,168 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:29:50,168 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 17:29:50,176 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 17:29:50,205 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 17:29:50,212 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 17:29:50,307 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 17:29:50,311 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 17:29:50,425 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:29:50,426 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 17:29:50,432 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 17:29:50,474 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 17:29:50,479 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 17:29:50,498 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 17:29:50,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:29:50,592 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_645 (Array Int Int)) (v_ArrVal_644 (Array Int Int))) (<= (+ 20 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_645) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_645 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_645) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-10 17:29:50,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094846104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:50,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:29:50,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-10 17:29:50,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167653929] [2024-11-10 17:29:50,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:29:50,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 17:29:50,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:50,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 17:29:50,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=360, Unknown=1, NotChecked=38, Total=462 [2024-11-10 17:29:50,597 INFO L87 Difference]: Start difference. First operand 619 states and 698 transitions. Second operand has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 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 17:29:52,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:52,188 INFO L93 Difference]: Finished difference Result 626 states and 705 transitions. [2024-11-10 17:29:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 17:29:52,188 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 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 93 [2024-11-10 17:29:52,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:52,190 INFO L225 Difference]: With dead ends: 626 [2024-11-10 17:29:52,191 INFO L226 Difference]: Without dead ends: 626 [2024-11-10 17:29:52,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 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 17:29:52,191 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 481 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 2969 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 2990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:52,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 2615 Invalid, 2990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2969 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 17:29:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-10 17:29:52,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 617. [2024-11-10 17:29:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 447 states have (on average 1.5369127516778522) internal successors, (687), 611 states have internal predecessors, (687), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:29:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 693 transitions. [2024-11-10 17:29:52,204 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 693 transitions. Word has length 93 [2024-11-10 17:29:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:52,204 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 693 transitions. [2024-11-10 17:29:52,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 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 17:29:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 693 transitions. [2024-11-10 17:29:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-10 17:29:52,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:52,207 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] [2024-11-10 17:29:52,225 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 17:29:52,411 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,SelfDestructingSolverStorable16 [2024-11-10 17:29:52,412 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr216REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:52,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash -786202023, now seen corresponding path program 1 times [2024-11-10 17:29:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:52,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511514712] [2024-11-10 17:29:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:52,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:52,933 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 17:29:52,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:52,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511514712] [2024-11-10 17:29:52,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511514712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:52,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:52,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 17:29:52,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518240850] [2024-11-10 17:29:52,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:52,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 17:29:52,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:52,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 17:29:52,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-10 17:29:52,936 INFO L87 Difference]: Start difference. First operand 617 states and 693 transitions. Second operand has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 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 17:29:54,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:54,349 INFO L93 Difference]: Finished difference Result 630 states and 709 transitions. [2024-11-10 17:29:54,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 17:29:54,350 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 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 95 [2024-11-10 17:29:54,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:54,352 INFO L225 Difference]: With dead ends: 630 [2024-11-10 17:29:54,352 INFO L226 Difference]: Without dead ends: 630 [2024-11-10 17:29:54,353 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 17:29:54,353 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 492 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:54,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 3379 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 17:29:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-10 17:29:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 626. [2024-11-10 17:29:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 455 states have (on average 1.531868131868132) internal successors, (697), 619 states have internal predecessors, (697), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:29:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 704 transitions. [2024-11-10 17:29:54,364 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 704 transitions. Word has length 95 [2024-11-10 17:29:54,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:54,364 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 704 transitions. [2024-11-10 17:29:54,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 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 17:29:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 704 transitions. [2024-11-10 17:29:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-10 17:29:54,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:54,365 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] [2024-11-10 17:29:54,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 17:29:54,366 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr217REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:54,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -786202022, now seen corresponding path program 1 times [2024-11-10 17:29:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:54,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398447538] [2024-11-10 17:29:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:54,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:55,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:55,079 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 17:29:55,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:55,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398447538] [2024-11-10 17:29:55,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398447538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:29:55,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:29:55,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 17:29:55,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989918511] [2024-11-10 17:29:55,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:29:55,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 17:29:55,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:55,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 17:29:55,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-10 17:29:55,082 INFO L87 Difference]: Start difference. First operand 626 states and 704 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 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 17:29:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:56,216 INFO L93 Difference]: Finished difference Result 629 states and 708 transitions. [2024-11-10 17:29:56,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 17:29:56,217 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 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 95 [2024-11-10 17:29:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:56,219 INFO L225 Difference]: With dead ends: 629 [2024-11-10 17:29:56,219 INFO L226 Difference]: Without dead ends: 629 [2024-11-10 17:29:56,219 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 17:29:56,220 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 491 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:56,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2155 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 17:29:56,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-10 17:29:56,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 626. [2024-11-10 17:29:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 455 states have (on average 1.5296703296703296) internal successors, (696), 619 states have internal predecessors, (696), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:29:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 703 transitions. [2024-11-10 17:29:56,229 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 703 transitions. Word has length 95 [2024-11-10 17:29:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:56,230 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 703 transitions. [2024-11-10 17:29:56,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 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 17:29:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 703 transitions. [2024-11-10 17:29:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 17:29:56,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:56,231 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] [2024-11-10 17:29:56,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 17:29:56,231 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr216REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:56,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1621933165, now seen corresponding path program 1 times [2024-11-10 17:29:56,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:56,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556955245] [2024-11-10 17:29:56,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:56,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:56,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:56,703 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 17:29:56,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556955245] [2024-11-10 17:29:56,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556955245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553312513] [2024-11-10 17:29:56,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:56,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:29:56,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:29:56,706 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 17:29:56,712 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 17:29:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:56,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-10 17:29:56,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:29:56,938 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 17:29:57,044 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:29:57,044 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 17:29:57,050 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 17:29:57,125 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:29:57,126 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 17:29:57,186 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:29:57,187 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 17:29:57,202 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 17:29:57,204 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 17:29:57,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:29:57,213 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_900 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_900) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-10 17:29:57,220 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_900 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_900) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-10 17:29:57,258 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2024-11-10 17:29:57,258 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 33 treesize of output 32 [2024-11-10 17:29:57,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553312513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:57,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:29:57,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 17 [2024-11-10 17:29:57,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575619954] [2024-11-10 17:29:57,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:29:57,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 17:29:57,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:29:57,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 17:29:57,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=286, Unknown=7, NotChecked=70, Total=420 [2024-11-10 17:29:57,294 INFO L87 Difference]: Start difference. First operand 626 states and 703 transitions. Second operand has 18 states, 16 states have (on average 9.125) internal successors, (146), 17 states have internal predecessors, (146), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:29:58,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:29:58,512 INFO L93 Difference]: Finished difference Result 628 states and 707 transitions. [2024-11-10 17:29:58,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 17:29:58,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 9.125) internal successors, (146), 17 states have internal predecessors, (146), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2024-11-10 17:29:58,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:29:58,515 INFO L225 Difference]: With dead ends: 628 [2024-11-10 17:29:58,515 INFO L226 Difference]: Without dead ends: 628 [2024-11-10 17:29:58,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=587, Unknown=7, NotChecked=102, Total=812 [2024-11-10 17:29:58,518 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 479 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:29:58,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 3105 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 17:29:58,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-10 17:29:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 625. [2024-11-10 17:29:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 455 states have (on average 1.5274725274725274) internal successors, (695), 618 states have internal predecessors, (695), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:29:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 702 transitions. [2024-11-10 17:29:58,534 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 702 transitions. Word has length 96 [2024-11-10 17:29:58,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:29:58,534 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 702 transitions. [2024-11-10 17:29:58,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 9.125) internal successors, (146), 17 states have internal predecessors, (146), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:29:58,535 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 702 transitions. [2024-11-10 17:29:58,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 17:29:58,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:29:58,535 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] [2024-11-10 17:29:58,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 17:29:58,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:29:58,740 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr217REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:29:58,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:29:58,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1621933166, now seen corresponding path program 1 times [2024-11-10 17:29:58,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:29:58,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820473851] [2024-11-10 17:29:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:58,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:29:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:59,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:29:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:59,523 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 17:29:59,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:29:59,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820473851] [2024-11-10 17:29:59,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820473851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:29:59,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128353409] [2024-11-10 17:29:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:29:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:29:59,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:29:59,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:29:59,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 17:29:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:29:59,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-10 17:29:59,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:29:59,738 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 17:29:59,850 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 8 treesize of output 1 [2024-11-10 17:29:59,860 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:29:59,860 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 17:29:59,888 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 17:29:59,891 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 17:29:59,972 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 17:29:59,975 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 17:30:00,076 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:00,077 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 17:30:00,082 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 17:30:00,156 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:00,156 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 17:30:00,163 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 17:30:00,176 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 17:30:00,180 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 17:30:00,201 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 17:30:00,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:00,256 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1047 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1047) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1047 (Array Int Int)) (v_ArrVal_1046 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1047) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1046) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-10 17:30:00,268 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1047 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1047) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1047 (Array Int Int)) (v_ArrVal_1046 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1047) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1046) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-10 17:30:00,333 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1047 (Array Int Int)) (v_ArrVal_1046 (Array Int Int)) (v_ArrVal_1053 (Array Int Int)) (v_ArrVal_1052 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1052))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1053) .cse0 v_ArrVal_1047) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1046) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1047 (Array Int Int)) (v_ArrVal_1053 (Array Int Int)) (v_ArrVal_1052 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1053) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1052) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1047) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-10 17:30:00,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128353409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:00,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:00,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2024-11-10 17:30:00,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910537672] [2024-11-10 17:30:00,338 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:00,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 17:30:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:00,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 17:30:00,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=437, Unknown=3, NotChecked=132, Total=650 [2024-11-10 17:30:00,339 INFO L87 Difference]: Start difference. First operand 625 states and 702 transitions. Second operand has 21 states, 18 states have (on average 8.5) internal successors, (153), 20 states have internal predecessors, (153), 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 17:30:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:02,027 INFO L93 Difference]: Finished difference Result 627 states and 706 transitions. [2024-11-10 17:30:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 17:30:02,028 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.5) internal successors, (153), 20 states have internal predecessors, (153), 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 96 [2024-11-10 17:30:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:02,030 INFO L225 Difference]: With dead ends: 627 [2024-11-10 17:30:02,030 INFO L226 Difference]: Without dead ends: 627 [2024-11-10 17:30:02,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=693, Unknown=3, NotChecked=168, Total=992 [2024-11-10 17:30:02,031 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 483 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 3583 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:02,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 3103 Invalid, 3603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3583 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 17:30:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-10 17:30:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 615. [2024-11-10 17:30:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 447 states have (on average 1.5324384787472036) internal successors, (685), 609 states have internal predecessors, (685), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:30:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 691 transitions. [2024-11-10 17:30:02,041 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 691 transitions. Word has length 96 [2024-11-10 17:30:02,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:02,042 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 691 transitions. [2024-11-10 17:30:02,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.5) internal successors, (153), 20 states have internal predecessors, (153), 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 17:30:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 691 transitions. [2024-11-10 17:30:02,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 17:30:02,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:02,043 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 17:30:02,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 17:30:02,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:02,244 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr212REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:02,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:02,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1287355354, now seen corresponding path program 1 times [2024-11-10 17:30:02,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:02,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064198047] [2024-11-10 17:30:02,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:02,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:02,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:02,787 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 17:30:02,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:02,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064198047] [2024-11-10 17:30:02,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064198047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:02,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:02,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 17:30:02,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741270095] [2024-11-10 17:30:02,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:02,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 17:30:02,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:02,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 17:30:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-10 17:30:02,790 INFO L87 Difference]: Start difference. First operand 615 states and 691 transitions. Second operand has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 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 17:30:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:04,142 INFO L93 Difference]: Finished difference Result 631 states and 710 transitions. [2024-11-10 17:30:04,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 17:30:04,143 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 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 98 [2024-11-10 17:30:04,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:04,145 INFO L225 Difference]: With dead ends: 631 [2024-11-10 17:30:04,145 INFO L226 Difference]: Without dead ends: 631 [2024-11-10 17:30:04,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2024-11-10 17:30:04,146 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 512 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:04,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 3396 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2769 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-10 17:30:04,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-10 17:30:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 627. [2024-11-10 17:30:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 458 states have (on average 1.5240174672489082) internal successors, (698), 620 states have internal predecessors, (698), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 705 transitions. [2024-11-10 17:30:04,157 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 705 transitions. Word has length 98 [2024-11-10 17:30:04,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:04,157 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 705 transitions. [2024-11-10 17:30:04,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 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 17:30:04,158 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 705 transitions. [2024-11-10 17:30:04,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 17:30:04,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:04,159 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 17:30:04,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 17:30:04,159 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr213REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:04,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1287355353, now seen corresponding path program 1 times [2024-11-10 17:30:04,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:04,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984447435] [2024-11-10 17:30:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:04,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:05,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:05,105 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 17:30:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984447435] [2024-11-10 17:30:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984447435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:05,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:05,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 17:30:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746850867] [2024-11-10 17:30:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:05,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 17:30:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 17:30:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 17:30:05,109 INFO L87 Difference]: Start difference. First operand 627 states and 705 transitions. Second operand has 13 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 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 17:30:06,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:06,228 INFO L93 Difference]: Finished difference Result 630 states and 709 transitions. [2024-11-10 17:30:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 17:30:06,229 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 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 98 [2024-11-10 17:30:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:06,230 INFO L225 Difference]: With dead ends: 630 [2024-11-10 17:30:06,230 INFO L226 Difference]: Without dead ends: 630 [2024-11-10 17:30:06,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-10 17:30:06,231 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 510 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:06,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 2196 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 17:30:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-10 17:30:06,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2024-11-10 17:30:06,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 458 states have (on average 1.5218340611353711) internal successors, (697), 620 states have internal predecessors, (697), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:06,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 704 transitions. [2024-11-10 17:30:06,244 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 704 transitions. Word has length 98 [2024-11-10 17:30:06,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:06,245 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 704 transitions. [2024-11-10 17:30:06,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 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 17:30:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 704 transitions. [2024-11-10 17:30:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-10 17:30:06,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:06,246 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] [2024-11-10 17:30:06,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 17:30:06,247 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr212REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:06,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash 629285266, now seen corresponding path program 1 times [2024-11-10 17:30:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:06,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732432294] [2024-11-10 17:30:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:06,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:06,835 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 17:30:06,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:06,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732432294] [2024-11-10 17:30:06,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732432294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:06,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251164618] [2024-11-10 17:30:06,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:06,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:06,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:30:06,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:30:06,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 17:30:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:07,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-10 17:30:07,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:30:07,057 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 17:30:07,146 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:07,146 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 17:30:07,152 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 17:30:07,217 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:07,217 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 17:30:07,252 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:07,253 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 17:30:07,288 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:07,289 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 17:30:07,297 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 17:30:07,300 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 17:30:07,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:07,309 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1333 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1333) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-10 17:30:07,314 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1333 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1333) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-10 17:30:07,321 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1333 (Array Int Int)) (v_ArrVal_1332 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1332))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1333)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-10 17:30:07,372 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2024-11-10 17:30:07,373 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 57 treesize of output 56 [2024-11-10 17:30:07,378 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1336 (Array Int Int)) (v_ArrVal_1333 (Array Int Int)) (v_ArrVal_1332 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1336))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1332)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1333)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem51#1.base|)) is different from false [2024-11-10 17:30:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251164618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:07,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:07,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 19 [2024-11-10 17:30:07,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315239600] [2024-11-10 17:30:07,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:07,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 17:30:07,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:07,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 17:30:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=359, Unknown=5, NotChecked=164, Total=600 [2024-11-10 17:30:07,381 INFO L87 Difference]: Start difference. First operand 627 states and 704 transitions. Second operand has 20 states, 18 states have (on average 8.38888888888889) internal successors, (151), 19 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:30:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:08,618 INFO L93 Difference]: Finished difference Result 629 states and 708 transitions. [2024-11-10 17:30:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 17:30:08,619 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 8.38888888888889) internal successors, (151), 19 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 99 [2024-11-10 17:30:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:08,621 INFO L225 Difference]: With dead ends: 629 [2024-11-10 17:30:08,621 INFO L226 Difference]: Without dead ends: 629 [2024-11-10 17:30:08,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=737, Unknown=5, NotChecked=236, Total=1122 [2024-11-10 17:30:08,622 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 477 mSDsluCounter, 3390 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:08,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 3712 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 17:30:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-10 17:30:08,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 626. [2024-11-10 17:30:08,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 458 states have (on average 1.519650655021834) internal successors, (696), 619 states have internal predecessors, (696), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 703 transitions. [2024-11-10 17:30:08,631 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 703 transitions. Word has length 99 [2024-11-10 17:30:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:08,632 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 703 transitions. [2024-11-10 17:30:08,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 8.38888888888889) internal successors, (151), 19 states have internal predecessors, (151), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:30:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 703 transitions. [2024-11-10 17:30:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-10 17:30:08,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:08,633 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] [2024-11-10 17:30:08,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 17:30:08,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-10 17:30:08,834 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr213REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:08,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:08,835 INFO L85 PathProgramCache]: Analyzing trace with hash 629285267, now seen corresponding path program 1 times [2024-11-10 17:30:08,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223050033] [2024-11-10 17:30:08,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:08,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:09,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:09,625 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 17:30:09,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:09,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223050033] [2024-11-10 17:30:09,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223050033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:09,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610683348] [2024-11-10 17:30:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:09,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:09,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:30:09,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:30:09,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 17:30:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:09,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-10 17:30:09,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:30:09,827 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 17:30:09,909 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:09,909 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 17:30:09,926 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 17:30:09,930 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 17:30:10,049 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:10,049 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 17:30:10,055 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 17:30:10,128 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:10,129 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 17:30:10,134 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 17:30:10,184 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:10,184 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 17:30:10,189 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 17:30:10,200 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 17:30:10,203 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 17:30:10,218 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 17:30:10,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:10,284 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1494 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1493 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1493) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-10 17:30:10,293 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1494 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8))) (forall ((v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1493 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1493) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-10 17:30:10,312 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1493 (Array Int Int)) (v_ArrVal_1492 (Array Int Int)) (v_ArrVal_1491 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1491))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1492) .cse0 v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1493) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1492 (Array Int Int)) (v_ArrVal_1491 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1492) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1491) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-10 17:30:10,325 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1492 (Array Int Int)) (v_ArrVal_1491 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1492) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1491) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1493 (Array Int Int)) (v_ArrVal_1492 (Array Int Int)) (v_ArrVal_1491 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1491))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1492) .cse2 v_ArrVal_1494) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1493) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))) is different from false [2024-11-10 17:30:10,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 17:30:10,402 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 156 treesize of output 160 [2024-11-10 17:30:10,469 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1500 (Array Int Int)) (v_ArrVal_1499 (Array Int Int)) (v_ArrVal_1494 (Array Int Int)) (v_ArrVal_1492 (Array Int Int)) (v_ArrVal_1491 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1500))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1499) .cse0 v_ArrVal_1492) (select (select (store .cse1 .cse0 v_ArrVal_1491) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1494))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 8))) (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_1493 (Array Int Int)) (v_prenex_5 (Array Int Int))) (= (select (select (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_prenex_5))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_prenex_9)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1493)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) |c_ULTIMATE.start_main_#t~mem51#1.base|)) (forall ((v_prenex_8 (Array Int Int)) (v_prenex_9 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int)) (v_prenex_7 (Array Int Int))) (< (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_prenex_5))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_prenex_6) .cse5 v_prenex_8) (select (select (store .cse6 .cse5 v_prenex_9) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_prenex_7))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (+ 33 |c_ULTIMATE.start_main_#t~mem51#1.offset|))))) is different from false [2024-11-10 17:30:10,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610683348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:10,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:10,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2024-11-10 17:30:10,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582550456] [2024-11-10 17:30:10,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:10,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 17:30:10,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:10,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 17:30:10,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=567, Unknown=5, NotChecked=260, Total=930 [2024-11-10 17:30:10,475 INFO L87 Difference]: Start difference. First operand 626 states and 703 transitions. Second operand has 24 states, 21 states have (on average 7.571428571428571) internal successors, (159), 23 states have internal predecessors, (159), 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 17:30:12,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:12,401 INFO L93 Difference]: Finished difference Result 628 states and 707 transitions. [2024-11-10 17:30:12,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 17:30:12,402 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.571428571428571) internal successors, (159), 23 states have internal predecessors, (159), 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 99 [2024-11-10 17:30:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:12,404 INFO L225 Difference]: With dead ends: 628 [2024-11-10 17:30:12,404 INFO L226 Difference]: Without dead ends: 628 [2024-11-10 17:30:12,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=908, Unknown=5, NotChecked=330, Total=1406 [2024-11-10 17:30:12,404 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 473 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 4267 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 4284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:12,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 4053 Invalid, 4284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4267 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 17:30:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-10 17:30:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 613. [2024-11-10 17:30:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 447 states have (on average 1.5279642058165548) internal successors, (683), 607 states have internal predecessors, (683), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:30:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 689 transitions. [2024-11-10 17:30:12,413 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 689 transitions. Word has length 99 [2024-11-10 17:30:12,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:12,414 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 689 transitions. [2024-11-10 17:30:12,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.571428571428571) internal successors, (159), 23 states have internal predecessors, (159), 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 17:30:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 689 transitions. [2024-11-10 17:30:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 17:30:12,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:12,415 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 17:30:12,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 17:30:12,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:12,616 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr208REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:12,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:12,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1839925230, now seen corresponding path program 1 times [2024-11-10 17:30:12,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:12,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872129573] [2024-11-10 17:30:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:12,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:13,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:13,212 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 17:30:13,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:13,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872129573] [2024-11-10 17:30:13,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872129573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:13,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 17:30:13,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949725559] [2024-11-10 17:30:13,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:13,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 17:30:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 17:30:13,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-10 17:30:13,216 INFO L87 Difference]: Start difference. First operand 613 states and 689 transitions. Second operand has 16 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 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 17:30:14,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:14,136 INFO L93 Difference]: Finished difference Result 632 states and 711 transitions. [2024-11-10 17:30:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 17:30:14,136 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 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 101 [2024-11-10 17:30:14,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:14,138 INFO L225 Difference]: With dead ends: 632 [2024-11-10 17:30:14,138 INFO L226 Difference]: Without dead ends: 632 [2024-11-10 17:30:14,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-10 17:30:14,139 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 519 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:14,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2481 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 17:30:14,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-10 17:30:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 628. [2024-11-10 17:30:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 461 states have (on average 1.5162689804772234) internal successors, (699), 621 states have internal predecessors, (699), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 706 transitions. [2024-11-10 17:30:14,146 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 706 transitions. Word has length 101 [2024-11-10 17:30:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:14,146 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 706 transitions. [2024-11-10 17:30:14,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 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 17:30:14,146 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 706 transitions. [2024-11-10 17:30:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 17:30:14,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:14,147 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 17:30:14,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 17:30:14,148 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr209REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:14,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:14,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1839925229, now seen corresponding path program 1 times [2024-11-10 17:30:14,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:14,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892995481] [2024-11-10 17:30:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:14,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:14,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:14,965 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 17:30:14,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:14,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892995481] [2024-11-10 17:30:14,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892995481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:14,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:14,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 17:30:14,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237853152] [2024-11-10 17:30:14,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:14,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 17:30:14,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:14,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 17:30:14,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-10 17:30:14,969 INFO L87 Difference]: Start difference. First operand 628 states and 706 transitions. Second operand has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 17:30:15,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:15,838 INFO L93 Difference]: Finished difference Result 631 states and 710 transitions. [2024-11-10 17:30:15,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 17:30:15,839 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 101 [2024-11-10 17:30:15,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:15,840 INFO L225 Difference]: With dead ends: 631 [2024-11-10 17:30:15,841 INFO L226 Difference]: Without dead ends: 631 [2024-11-10 17:30:15,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-10 17:30:15,841 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 512 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:15,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1653 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 17:30:15,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-10 17:30:15,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 628. [2024-11-10 17:30:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 461 states have (on average 1.5140997830802603) internal successors, (698), 621 states have internal predecessors, (698), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 705 transitions. [2024-11-10 17:30:15,849 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 705 transitions. Word has length 101 [2024-11-10 17:30:15,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:15,849 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 705 transitions. [2024-11-10 17:30:15,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 17:30:15,850 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 705 transitions. [2024-11-10 17:30:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-10 17:30:15,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:15,851 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, 1] [2024-11-10 17:30:15,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 17:30:15,851 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr208REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:15,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:15,852 INFO L85 PathProgramCache]: Analyzing trace with hash -494447834, now seen corresponding path program 1 times [2024-11-10 17:30:15,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:15,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870341622] [2024-11-10 17:30:15,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:15,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:16,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:16,473 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 17:30:16,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870341622] [2024-11-10 17:30:16,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870341622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96751925] [2024-11-10 17:30:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:16,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:16,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:30:16,476 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:30:16,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 17:30:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:16,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-10 17:30:16,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:30:16,715 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 17:30:16,804 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:16,804 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 17:30:16,810 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 17:30:16,881 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:16,881 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 17:30:16,915 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:16,915 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 17:30:16,961 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:16,962 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 17:30:17,009 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:17,009 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 17:30:17,022 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 17:30:17,025 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 17:30:17,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:17,036 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1805 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1805) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-10 17:30:17,041 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1805 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1805) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-10 17:30:17,109 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1805 (Array Int Int)) (v_ArrVal_1804 (Array Int Int)) (v_ArrVal_1803 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1803))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1804)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1805)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-10 17:30:17,190 INFO L349 Elim1Store]: treesize reduction 5, result has 95.0 percent of original size [2024-11-10 17:30:17,191 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 105 treesize of output 104 [2024-11-10 17:30:17,197 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1808 (Array Int Int)) (v_ArrVal_1805 (Array Int Int)) (v_ArrVal_1804 (Array Int Int)) (v_ArrVal_1803 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem51#1.base| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1808))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1803)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1804)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1805)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-10 17:30:17,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96751925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:17,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:17,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 21 [2024-11-10 17:30:17,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602221474] [2024-11-10 17:30:17,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:17,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 17:30:17,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:17,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 17:30:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=488, Unknown=32, NotChecked=196, Total=812 [2024-11-10 17:30:17,200 INFO L87 Difference]: Start difference. First operand 628 states and 705 transitions. Second operand has 22 states, 20 states have (on average 7.8) internal successors, (156), 21 states have internal predecessors, (156), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:30:18,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:18,301 INFO L93 Difference]: Finished difference Result 630 states and 709 transitions. [2024-11-10 17:30:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 17:30:18,302 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 7.8) internal successors, (156), 21 states have internal predecessors, (156), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-11-10 17:30:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:18,304 INFO L225 Difference]: With dead ends: 630 [2024-11-10 17:30:18,304 INFO L226 Difference]: Without dead ends: 630 [2024-11-10 17:30:18,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=981, Unknown=39, NotChecked=276, Total=1482 [2024-11-10 17:30:18,305 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 473 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:18,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 2769 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 17:30:18,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-10 17:30:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2024-11-10 17:30:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 461 states have (on average 1.5119305856832972) internal successors, (697), 620 states have internal predecessors, (697), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:18,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 704 transitions. [2024-11-10 17:30:18,316 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 704 transitions. Word has length 102 [2024-11-10 17:30:18,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:18,316 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 704 transitions. [2024-11-10 17:30:18,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 7.8) internal successors, (156), 21 states have internal predecessors, (156), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:30:18,317 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 704 transitions. [2024-11-10 17:30:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-10 17:30:18,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:18,318 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, 1] [2024-11-10 17:30:18,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 17:30:18,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:18,523 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr209REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:18,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:18,523 INFO L85 PathProgramCache]: Analyzing trace with hash -494447833, now seen corresponding path program 1 times [2024-11-10 17:30:18,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:18,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813605389] [2024-11-10 17:30:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:18,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:19,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:19,553 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 17:30:19,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:19,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813605389] [2024-11-10 17:30:19,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813605389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:19,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146668475] [2024-11-10 17:30:19,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:19,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:19,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:30:19,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:30:19,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 17:30:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:19,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-10 17:30:19,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:30:19,789 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 17:30:19,861 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 8 treesize of output 1 [2024-11-10 17:30:19,868 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:19,868 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 17:30:19,896 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 17:30:19,899 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 19 treesize of output 1 [2024-11-10 17:30:19,977 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 17:30:19,981 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 17:30:20,068 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:20,068 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 17:30:20,074 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 17:30:20,152 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:20,152 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 17:30:20,157 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 17:30:20,216 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:20,217 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 17:30:20,220 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 17:30:20,315 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:20,315 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 17:30:20,321 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 41 treesize of output 22 [2024-11-10 17:30:20,375 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 17:30:20,381 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 30 treesize of output 12 [2024-11-10 17:30:20,402 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 17:30:20,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:20,715 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse4 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_1978 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| .cse4 v_ArrVal_1978))) (or (forall ((v_ArrVal_1977 (Array Int Int)) (v_ArrVal_1980 (Array Int Int)) (v_ArrVal_1979 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse4 v_ArrVal_1977))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store .cse0 .cse1 v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 24) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1979) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (< (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 8) 0)))) (forall ((v_ArrVal_1978 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$#1.offset| .cse4 v_ArrVal_1978))) (or (forall ((v_ArrVal_1977 (Array Int Int)) (v_ArrVal_1980 (Array Int Int))) (<= 0 (+ 20 (select (select (store .cse5 (select (select (store |c_#memory_$Pointer$#1.base| .cse4 v_ArrVal_1977) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (< (+ (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 8) 0))))))) is different from false [2024-11-10 17:30:20,762 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1978 (Array Int Int)) (v_ArrVal_1976 (Array Int Int)) (v_ArrVal_1975 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1975))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse0 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1976) .cse2 v_ArrVal_1978))) (or (forall ((v_ArrVal_1977 (Array Int Int)) (v_ArrVal_1980 (Array Int Int))) (<= 0 (+ 20 (select (select (store .cse0 (select (select (store .cse1 .cse2 v_ArrVal_1977) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))) (< (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 8) 0)))))) (forall ((v_ArrVal_1978 (Array Int Int)) (v_ArrVal_1976 (Array Int Int)) (v_ArrVal_1975 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1975))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1976) .cse8 v_ArrVal_1978))) (or (forall ((v_ArrVal_1977 (Array Int Int)) (v_ArrVal_1980 (Array Int Int)) (v_ArrVal_1979 (Array Int Int))) (let ((.cse6 (store .cse7 .cse8 v_ArrVal_1977))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ 24 (select (select (store .cse4 .cse5 v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_1979) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))) (< (+ (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 8) 0)))))))) is different from false [2024-11-10 17:30:20,990 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1978 (Array Int Int)) (v_ArrVal_1976 (Array Int Int)) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1975 (Array Int Int)) (v_ArrVal_1985 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1986))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse4 (store .cse7 .cse6 v_ArrVal_1975))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse0 (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1985) .cse6 v_ArrVal_1976) .cse5 v_ArrVal_1978))) (or (< (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) 0) (forall ((v_ArrVal_1977 (Array Int Int)) (v_ArrVal_1980 (Array Int Int)) (v_ArrVal_1979 (Array Int Int))) (let ((.cse3 (store .cse4 .cse5 v_ArrVal_1977))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store .cse0 .cse2 v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1979) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))))))) (forall ((v_ArrVal_1978 (Array Int Int)) (v_ArrVal_1976 (Array Int Int)) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1975 (Array Int Int)) (v_ArrVal_1985 (Array Int Int))) (let ((.cse12 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1986))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse9 (store .cse12 .cse11 v_ArrVal_1975))) (let ((.cse10 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse8 (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_1985) .cse11 v_ArrVal_1976) .cse10 v_ArrVal_1978))) (or (forall ((v_ArrVal_1977 (Array Int Int)) (v_ArrVal_1980 (Array Int Int))) (<= 0 (+ (select (select (store .cse8 (select (select (store .cse9 .cse10 v_ArrVal_1977) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))) (< (+ (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) 0)))))))))) is different from false [2024-11-10 17:30:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146668475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:20,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:20,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 25 [2024-11-10 17:30:20,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034498183] [2024-11-10 17:30:20,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:20,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 17:30:20,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 17:30:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=855, Unknown=21, NotChecked=186, Total=1190 [2024-11-10 17:30:20,995 INFO L87 Difference]: Start difference. First operand 627 states and 704 transitions. Second operand has 26 states, 23 states have (on average 7.173913043478261) internal successors, (165), 25 states have internal predecessors, (165), 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 17:30:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:24,128 INFO L93 Difference]: Finished difference Result 629 states and 708 transitions. [2024-11-10 17:30:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 17:30:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 7.173913043478261) internal successors, (165), 25 states have internal predecessors, (165), 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 102 [2024-11-10 17:30:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:24,131 INFO L225 Difference]: With dead ends: 629 [2024-11-10 17:30:24,131 INFO L226 Difference]: Without dead ends: 629 [2024-11-10 17:30:24,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=229, Invalid=1484, Unknown=21, NotChecked=246, Total=1980 [2024-11-10 17:30:24,132 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 482 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 5858 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 5878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:24,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 4656 Invalid, 5878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5858 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-10 17:30:24,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-10 17:30:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 611. [2024-11-10 17:30:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 447 states have (on average 1.523489932885906) internal successors, (681), 605 states have internal predecessors, (681), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:30:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 687 transitions. [2024-11-10 17:30:24,139 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 687 transitions. Word has length 102 [2024-11-10 17:30:24,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:24,140 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 687 transitions. [2024-11-10 17:30:24,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 7.173913043478261) internal successors, (165), 25 states have internal predecessors, (165), 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 17:30:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 687 transitions. [2024-11-10 17:30:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-10 17:30:24,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:24,141 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, 1, 1, 1, 1] [2024-11-10 17:30:24,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 17:30:24,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-10 17:30:24,346 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr204REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:24,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:24,346 INFO L85 PathProgramCache]: Analyzing trace with hash -253534132, now seen corresponding path program 1 times [2024-11-10 17:30:24,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:24,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881944751] [2024-11-10 17:30:24,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:24,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:25,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:25,088 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 17:30:25,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:25,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881944751] [2024-11-10 17:30:25,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881944751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:25,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:25,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-10 17:30:25,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892087892] [2024-11-10 17:30:25,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:25,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 17:30:25,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:25,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 17:30:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-10 17:30:25,091 INFO L87 Difference]: Start difference. First operand 611 states and 687 transitions. Second operand has 17 states, 15 states have (on average 6.866666666666666) internal successors, (103), 16 states have internal predecessors, (103), 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 17:30:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:26,294 INFO L93 Difference]: Finished difference Result 634 states and 713 transitions. [2024-11-10 17:30:26,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 17:30:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.866666666666666) internal successors, (103), 16 states have internal predecessors, (103), 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 105 [2024-11-10 17:30:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:26,296 INFO L225 Difference]: With dead ends: 634 [2024-11-10 17:30:26,296 INFO L226 Difference]: Without dead ends: 634 [2024-11-10 17:30:26,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2024-11-10 17:30:26,297 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 495 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:26,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 3083 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 17:30:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-10 17:30:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 630. [2024-11-10 17:30:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 465 states have (on average 1.5075268817204301) internal successors, (701), 623 states have internal predecessors, (701), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:26,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 708 transitions. [2024-11-10 17:30:26,303 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 708 transitions. Word has length 105 [2024-11-10 17:30:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:26,304 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 708 transitions. [2024-11-10 17:30:26,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.866666666666666) internal successors, (103), 16 states have internal predecessors, (103), 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 17:30:26,304 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 708 transitions. [2024-11-10 17:30:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-10 17:30:26,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:26,305 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, 1, 1, 1, 1] [2024-11-10 17:30:26,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 17:30:26,305 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr205REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:26,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash -253534131, now seen corresponding path program 1 times [2024-11-10 17:30:26,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:26,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823688025] [2024-11-10 17:30:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:26,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:27,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:27,459 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 17:30:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823688025] [2024-11-10 17:30:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823688025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:27,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-10 17:30:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137704511] [2024-11-10 17:30:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:27,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 17:30:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 17:30:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-10 17:30:27,462 INFO L87 Difference]: Start difference. First operand 630 states and 708 transitions. Second operand has 18 states, 16 states have (on average 6.4375) internal successors, (103), 17 states have internal predecessors, (103), 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 17:30:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:29,250 INFO L93 Difference]: Finished difference Result 633 states and 712 transitions. [2024-11-10 17:30:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 17:30:29,250 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 17 states have internal predecessors, (103), 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 105 [2024-11-10 17:30:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:29,253 INFO L225 Difference]: With dead ends: 633 [2024-11-10 17:30:29,253 INFO L226 Difference]: Without dead ends: 633 [2024-11-10 17:30:29,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2024-11-10 17:30:29,254 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 497 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 3391 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:29,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 2776 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3391 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 17:30:29,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-10 17:30:29,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 630. [2024-11-10 17:30:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 465 states have (on average 1.5053763440860215) internal successors, (700), 623 states have internal predecessors, (700), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 707 transitions. [2024-11-10 17:30:29,260 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 707 transitions. Word has length 105 [2024-11-10 17:30:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:29,260 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 707 transitions. [2024-11-10 17:30:29,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 17 states have internal predecessors, (103), 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 17:30:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 707 transitions. [2024-11-10 17:30:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-10 17:30:29,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:29,261 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, 1, 1, 1, 1, 1] [2024-11-10 17:30:29,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 17:30:29,261 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr204REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:29,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -611708576, now seen corresponding path program 1 times [2024-11-10 17:30:29,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388336875] [2024-11-10 17:30:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:29,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:29,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:29,907 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 17:30:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388336875] [2024-11-10 17:30:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388336875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950171299] [2024-11-10 17:30:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:29,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:29,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:30:29,909 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:30:29,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 17:30:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:30,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-10 17:30:30,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:30:30,162 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 17:30:30,237 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:30,237 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 17:30:30,241 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 17:30:30,289 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:30,289 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 17:30:30,313 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:30,313 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 42 treesize of output 41 [2024-11-10 17:30:30,351 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:30,352 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 17:30:30,385 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:30,385 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 17:30:30,421 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:30,421 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 17:30:30,430 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 17:30:30,450 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-10 17:30:30,450 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 19 treesize of output 16 [2024-11-10 17:30:30,453 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 17:30:30,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:30,990 INFO L349 Elim1Store]: treesize reduction 10, result has 97.5 percent of original size [2024-11-10 17:30:30,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 597 treesize of output 794 [2024-11-10 17:30:31,007 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2328 (Array Int Int)) (v_ArrVal_2324 (Array Int Int)) (v_ArrVal_2323 (Array Int Int)) (v_ArrVal_2322 (Array Int Int)) (v_ArrVal_2321 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_2328))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2321)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2322)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2323)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2324)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem51#1.base|)) is different from false [2024-11-10 17:30:31,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950171299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:31,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:31,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 21 [2024-11-10 17:30:31,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536698562] [2024-11-10 17:30:31,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:31,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 17:30:31,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 17:30:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=813, Unknown=44, NotChecked=60, Total=1056 [2024-11-10 17:30:31,011 INFO L87 Difference]: Start difference. First operand 630 states and 707 transitions. Second operand has 22 states, 20 states have (on average 7.75) internal successors, (155), 20 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:30:32,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:32,362 INFO L93 Difference]: Finished difference Result 632 states and 711 transitions. [2024-11-10 17:30:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 17:30:32,363 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 7.75) internal successors, (155), 20 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-10 17:30:32,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:32,365 INFO L225 Difference]: With dead ends: 632 [2024-11-10 17:30:32,365 INFO L226 Difference]: Without dead ends: 632 [2024-11-10 17:30:32,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=1502, Unknown=44, NotChecked=82, Total=1892 [2024-11-10 17:30:32,366 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 474 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:32,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 3387 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 17:30:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-10 17:30:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 629. [2024-11-10 17:30:32,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 465 states have (on average 1.5032258064516129) internal successors, (699), 622 states have internal predecessors, (699), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 706 transitions. [2024-11-10 17:30:32,373 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 706 transitions. Word has length 106 [2024-11-10 17:30:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:32,373 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 706 transitions. [2024-11-10 17:30:32,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 7.75) internal successors, (155), 20 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 17:30:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 706 transitions. [2024-11-10 17:30:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-10 17:30:32,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:32,374 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, 1, 1, 1, 1, 1] [2024-11-10 17:30:32,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 17:30:32,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:32,575 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr205REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:32,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash -611708575, now seen corresponding path program 1 times [2024-11-10 17:30:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:32,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139454812] [2024-11-10 17:30:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:32,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:33,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:33,472 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 17:30:33,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:33,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139454812] [2024-11-10 17:30:33,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139454812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:33,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855320898] [2024-11-10 17:30:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:33,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 17:30:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:30:33,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 17:30:33,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 17:30:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:33,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-10 17:30:33,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 17:30:33,738 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 17:30:33,821 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 8 treesize of output 1 [2024-11-10 17:30:33,828 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:33,828 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 17:30:33,833 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 17:30:33,836 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 17:30:33,868 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 17:30:33,872 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 17:30:34,013 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:34,014 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 73 treesize of output 66 [2024-11-10 17:30:34,020 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 17:30:34,094 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:34,094 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 73 treesize of output 66 [2024-11-10 17:30:34,098 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 17:30:34,153 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:34,153 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 73 treesize of output 66 [2024-11-10 17:30:34,156 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 17:30:34,212 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:34,213 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 73 treesize of output 66 [2024-11-10 17:30:34,215 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 17:30:34,285 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-10 17:30:34,285 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 73 treesize of output 66 [2024-11-10 17:30:34,289 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 17:30:34,305 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 42 treesize of output 18 [2024-11-10 17:30:34,310 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 17:30:34,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 17:30:34,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-11-10 17:30:34,324 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 17:30:34,324 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 17:30:34,325 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 17:30:34,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 17:30:34,593 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_2515) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_2516) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2517) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0)))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int) (v_ArrVal_2518 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0)) (forall ((v_ArrVal_2519 Int)) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_2516))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ 4 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_2515) .cse1 v_ArrVal_2517) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc58#1.base_7| v_ArrVal_2519) (select (select (store .cse2 .cse1 v_ArrVal_2518) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))))) is different from false [2024-11-10 17:30:34,613 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (or (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2515) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2516) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2517) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0)))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int) (v_ArrVal_2518 (Array Int Int))) (or (forall ((v_ArrVal_2519 Int)) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2516))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2515) .cse2 v_ArrVal_2517) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc58#1.base_7| v_ArrVal_2519) (select (select (store .cse3 .cse2 v_ArrVal_2518) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0))))))) is different from false [2024-11-10 17:30:34,796 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2514 (Array Int Int)) (v_ArrVal_2513 (Array Int Int))) (< 0 (+ (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2513))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2514) .cse1 v_ArrVal_2515) (select (select (store .cse2 .cse1 v_ArrVal_2516) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2517))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 1)))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int) (v_ArrVal_2514 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0)) (forall ((v_ArrVal_2519 Int)) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2513))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_2516))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2514) .cse4 v_ArrVal_2515) .cse5 v_ArrVal_2517) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc58#1.base_7| v_ArrVal_2519) (select (select (store .cse6 .cse5 v_ArrVal_2518) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))))))))))) is different from false [2024-11-10 17:30:34,837 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2514 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2511 (Array Int Int))) (< 0 (+ (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2512))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse2 (store .cse4 .cse0 v_ArrVal_2513))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2511) .cse0 v_ArrVal_2514) .cse1 v_ArrVal_2515) (select (select (store .cse2 .cse1 v_ArrVal_2516) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2517))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 1)))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc58#1.base_7| Int) (v_ArrVal_2514 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2511 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (or (forall ((v_ArrVal_2519 Int)) (let ((.cse10 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2512))) (let ((.cse5 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse10 .cse5 v_ArrVal_2513))) (let ((.cse6 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse8 (store .cse9 .cse6 v_ArrVal_2516))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ 4 (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2511) .cse5 v_ArrVal_2514) .cse6 v_ArrVal_2515) .cse7 v_ArrVal_2517) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc58#1.base_7| v_ArrVal_2519) (select (select (store .cse8 .cse7 v_ArrVal_2518) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc58#1.base_7|) 0)))))) is different from false [2024-11-10 17:30:35,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 17:30:35,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 604 treesize of output 622 [2024-11-10 17:30:35,741 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2519 Int) (v_prenex_26 Int) (v_prenex_32 (Array Int Int)) (v_prenex_31 (Array Int Int)) (v_prenex_30 (Array Int Int)) (v_prenex_25 (Array Int Int)) (v_prenex_24 (Array Int Int)) (v_prenex_23 (Array Int Int)) (v_prenex_29 (Array Int Int)) (v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int)) (v_ArrVal_2518 (Array Int Int))) (or (let ((.cse8 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_prenex_29))) (let ((.cse0 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse0 v_prenex_31))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse6 (store .cse7 .cse1 v_prenex_30))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse2 v_prenex_24))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (< (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_prenex_27) .cse0 v_prenex_32) .cse1 v_prenex_28) .cse2 v_prenex_25) .cse3 v_prenex_23) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 3) (select (store |c_#length| v_prenex_26 v_ArrVal_2519) (select (select (store .cse5 .cse3 v_ArrVal_2518) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) (= |c_ULTIMATE.start_main_#t~mem51#1.base| v_prenex_26))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2525 (Array Int Int)) (v_ArrVal_2514 (Array Int Int)) (v_ArrVal_2524 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2511 (Array Int Int))) (< 0 (+ (select (select (let ((.cse14 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_2524))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse13 (store .cse14 .cse9 v_ArrVal_2512))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse12 (store .cse13 .cse10 v_ArrVal_2513))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem51#1.base| v_ArrVal_2525) .cse9 v_ArrVal_2511) .cse10 v_ArrVal_2514) .cse11 v_ArrVal_2515) (select (select (store .cse12 .cse11 v_ArrVal_2516) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_2517))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 1))))) is different from false [2024-11-10 17:30:35,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855320898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 17:30:35,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 17:30:35,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 25 [2024-11-10 17:30:35,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619303904] [2024-11-10 17:30:35,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 17:30:35,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 17:30:35,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:35,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 17:30:35,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=913, Unknown=22, NotChecked=330, Total=1406 [2024-11-10 17:30:35,747 INFO L87 Difference]: Start difference. First operand 629 states and 706 transitions. Second operand has 26 states, 24 states have (on average 6.708333333333333) internal successors, (161), 24 states have internal predecessors, (161), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:30:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:38,033 INFO L93 Difference]: Finished difference Result 631 states and 710 transitions. [2024-11-10 17:30:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 17:30:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.708333333333333) internal successors, (161), 24 states have internal predecessors, (161), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 106 [2024-11-10 17:30:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:38,036 INFO L225 Difference]: With dead ends: 631 [2024-11-10 17:30:38,036 INFO L226 Difference]: Without dead ends: 631 [2024-11-10 17:30:38,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=271, Invalid=1889, Unknown=22, NotChecked=470, Total=2652 [2024-11-10 17:30:38,037 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 476 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:38,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 2778 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-10 17:30:38,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-10 17:30:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 609. [2024-11-10 17:30:38,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 447 states have (on average 1.5190156599552573) internal successors, (679), 603 states have internal predecessors, (679), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 17:30:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 685 transitions. [2024-11-10 17:30:38,043 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 685 transitions. Word has length 106 [2024-11-10 17:30:38,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:38,043 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 685 transitions. [2024-11-10 17:30:38,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.708333333333333) internal successors, (161), 24 states have internal predecessors, (161), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 17:30:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 685 transitions. [2024-11-10 17:30:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 17:30:38,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:38,043 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:30:38,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-10 17:30:38,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-10 17:30:38,244 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr200REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:38,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1812572157, now seen corresponding path program 1 times [2024-11-10 17:30:38,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:38,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345099034] [2024-11-10 17:30:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:38,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:38,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:38,777 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 17:30:38,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:38,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345099034] [2024-11-10 17:30:38,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345099034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:38,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:38,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 17:30:38,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498158746] [2024-11-10 17:30:38,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:38,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 17:30:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:38,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 17:30:38,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-10 17:30:38,779 INFO L87 Difference]: Start difference. First operand 609 states and 685 transitions. Second operand has 16 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 17:30:40,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 17:30:40,208 INFO L93 Difference]: Finished difference Result 635 states and 714 transitions. [2024-11-10 17:30:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 17:30:40,209 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 108 [2024-11-10 17:30:40,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 17:30:40,210 INFO L225 Difference]: With dead ends: 635 [2024-11-10 17:30:40,211 INFO L226 Difference]: Without dead ends: 635 [2024-11-10 17:30:40,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2024-11-10 17:30:40,211 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 497 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 17:30:40,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 3703 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 17:30:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-10 17:30:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 631. [2024-11-10 17:30:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 468 states have (on average 1.5) internal successors, (702), 624 states have internal predecessors, (702), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 17:30:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 709 transitions. [2024-11-10 17:30:40,218 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 709 transitions. Word has length 108 [2024-11-10 17:30:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 17:30:40,219 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 709 transitions. [2024-11-10 17:30:40,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 17:30:40,219 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 709 transitions. [2024-11-10 17:30:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 17:30:40,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 17:30:40,220 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:30:40,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-10 17:30:40,220 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr201REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-11-10 17:30:40,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:30:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1812572158, now seen corresponding path program 1 times [2024-11-10 17:30:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:30:40,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957413118] [2024-11-10 17:30:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:30:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:30:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:41,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 17:30:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:30:41,225 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 17:30:41,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:30:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957413118] [2024-11-10 17:30:41,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957413118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:30:41,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:30:41,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-10 17:30:41,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094255394] [2024-11-10 17:30:41,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:30:41,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 17:30:41,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:30:41,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 17:30:41,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-10 17:30:41,227 INFO L87 Difference]: Start difference. First operand 631 states and 709 transitions. Second operand has 19 states, 17 states have (on average 6.235294117647059) internal successors, (106), 18 states have internal predecessors, (106), 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)