./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.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 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:05:03,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:05:03,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:05:03,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:05:03,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:05:03,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:05:03,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:05:03,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:05:03,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:05:03,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:05:03,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:05:03,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:05:03,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:05:03,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:05:03,296 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:05:03,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:05:03,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:05:03,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:05:03,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:05:03,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:05:03,298 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:05:03,299 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:05:03,299 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:05:03,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:05:03,300 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:05:03,300 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:05:03,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:05:03,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:05:03,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:05:03,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:05:03,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:05:03,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:05:03,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:05:03,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:05:03,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:05:03,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:05:03,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:05:03,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:05:03,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:05:03,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:05:03,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:05:03,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:05:03,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2024-11-09 10:05:03,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:05:03,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:05:03,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:05:03,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:05:03,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:05:03,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-11-09 10:05:05,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:05:05,571 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:05:05,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-11-09 10:05:05,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49738ce68/4ba9ff7ce08242e48bb758e87b829080/FLAGf0f1349c6 [2024-11-09 10:05:05,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49738ce68/4ba9ff7ce08242e48bb758e87b829080 [2024-11-09 10:05:05,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:05:05,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:05:05,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:05:05,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:05:05,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:05:05,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:05:05" (1/1) ... [2024-11-09 10:05:05,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ff0b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:05, skipping insertion in model container [2024-11-09 10:05:05,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:05:05" (1/1) ... [2024-11-09 10:05:05,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:05:06,407 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,448 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,456 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,459 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,469 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,513 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,516 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:05:06,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:05:06,540 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:05:06,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:05:06,743 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:05:06,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06 WrapperNode [2024-11-09 10:05:06,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:05:06,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:05:06,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:05:06,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:05:06,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:06,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:06,919 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3292 [2024-11-09 10:05:06,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:05:06,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:05:06,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:05:06,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:05:06,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:06,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:06,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,037 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-09 10:05:07,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:05:07,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:05:07,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:05:07,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:05:07,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (1/1) ... [2024-11-09 10:05:07,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:05:07,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:05:07,255 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) [2024-11-09 10:05:07,261 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 [2024-11-09 10:05:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 10:05:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 10:05:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 10:05:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 10:05:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 10:05:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 10:05:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 10:05:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 10:05:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 10:05:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 10:05:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 10:05:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 10:05:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 10:05:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 10:05:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 10:05:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 10:05:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 10:05:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:05:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 10:05:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 10:05:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 10:05:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 10:05:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 10:05:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 10:05:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 10:05:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 10:05:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:05:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 10:05:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 10:05:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:05:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:05:07,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:05:07,544 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:05:07,571 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 10:05:07,618 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 10:05:07,649 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 10:05:10,895 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2024-11-09 10:05:10,896 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:05:10,949 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:05:10,950 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-09 10:05:10,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:05:10 BoogieIcfgContainer [2024-11-09 10:05:10,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:05:10,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:05:10,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:05:10,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:05:10,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:05:05" (1/3) ... [2024-11-09 10:05:10,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ff5879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:05:10, skipping insertion in model container [2024-11-09 10:05:10,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:05:06" (2/3) ... [2024-11-09 10:05:10,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ff5879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:05:10, skipping insertion in model container [2024-11-09 10:05:10,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:05:10" (3/3) ... [2024-11-09 10:05:10,960 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2024-11-09 10:05:10,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:05:10,978 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 424 error locations. [2024-11-09 10:05:11,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:05:11,084 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;@45bfc61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:05:11,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-11-09 10:05:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-09 10:05:11,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 10:05:11,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:11,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 10:05:11,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:11,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:11,112 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-09 10:05:11,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:11,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781259959] [2024-11-09 10:05:11,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:11,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:11,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:11,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781259959] [2024-11-09 10:05:11,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781259959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:11,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:11,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:05:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694721298] [2024-11-09 10:05:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:11,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:05:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:11,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:05:11,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:05:11,422 INFO L87 Difference]: Start difference. First operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:05:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:12,845 INFO L93 Difference]: Finished difference Result 2052 states and 3216 transitions. [2024-11-09 10:05:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:05:12,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 10:05:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:12,894 INFO L225 Difference]: With dead ends: 2052 [2024-11-09 10:05:12,895 INFO L226 Difference]: Without dead ends: 2050 [2024-11-09 10:05:12,897 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 [2024-11-09 10:05:12,900 INFO L432 NwaCegarLoop]: 2827 mSDtfsCounter, 2091 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:12,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 2879 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 10:05:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-09 10:05:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2024-11-09 10:05:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1138 states have (on average 1.9384885764499122) internal successors, (2206), 2043 states have internal predecessors, (2206), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-09 10:05:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3214 transitions. [2024-11-09 10:05:13,270 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3214 transitions. Word has length 3 [2024-11-09 10:05:13,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:13,270 INFO L471 AbstractCegarLoop]: Abstraction has 2050 states and 3214 transitions. [2024-11-09 10:05:13,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:05:13,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3214 transitions. [2024-11-09 10:05:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 10:05:13,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:13,271 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 10:05:13,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:05:13,272 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:13,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:13,273 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-09 10:05:13,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:13,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984960426] [2024-11-09 10:05:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:13,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:13,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984960426] [2024-11-09 10:05:13,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984960426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:13,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:13,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:05:13,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029570863] [2024-11-09 10:05:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:13,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:05:13,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:13,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:05:13,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:05:13,378 INFO L87 Difference]: Start difference. First operand 2050 states and 3214 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:05:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:14,805 INFO L93 Difference]: Finished difference Result 3814 states and 6130 transitions. [2024-11-09 10:05:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:05:14,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 10:05:14,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:14,825 INFO L225 Difference]: With dead ends: 3814 [2024-11-09 10:05:14,825 INFO L226 Difference]: Without dead ends: 3814 [2024-11-09 10:05:14,826 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 [2024-11-09 10:05:14,828 INFO L432 NwaCegarLoop]: 2929 mSDtfsCounter, 1908 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 5209 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:14,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 5209 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 10:05:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2024-11-09 10:05:15,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3550. [2024-11-09 10:05:15,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2139 states have (on average 1.9205236091631603) internal successors, (4108), 3541 states have internal predecessors, (4108), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:15,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6120 transitions. [2024-11-09 10:05:15,155 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6120 transitions. Word has length 3 [2024-11-09 10:05:15,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:15,155 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6120 transitions. [2024-11-09 10:05:15,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:05:15,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6120 transitions. [2024-11-09 10:05:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 10:05:15,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:15,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:05:15,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:05:15,157 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:15,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-11-09 10:05:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:15,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728589464] [2024-11-09 10:05:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:15,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:15,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:15,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728589464] [2024-11-09 10:05:15,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728589464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:15,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:15,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:05:15,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499211303] [2024-11-09 10:05:15,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:15,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:05:15,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:15,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:05:15,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:05:15,319 INFO L87 Difference]: Start difference. First operand 3550 states and 6120 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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) [2024-11-09 10:05:16,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:16,695 INFO L93 Difference]: Finished difference Result 6220 states and 11072 transitions. [2024-11-09 10:05:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:05:16,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2024-11-09 10:05:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:16,729 INFO L225 Difference]: With dead ends: 6220 [2024-11-09 10:05:16,730 INFO L226 Difference]: Without dead ends: 6220 [2024-11-09 10:05:16,730 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 [2024-11-09 10:05:16,731 INFO L432 NwaCegarLoop]: 5189 mSDtfsCounter, 1816 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:16,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 7679 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 10:05:16,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2024-11-09 10:05:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 3618. [2024-11-09 10:05:17,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2217 states have (on average 1.9174560216508796) internal successors, (4251), 3609 states have internal predecessors, (4251), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6263 transitions. [2024-11-09 10:05:17,342 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6263 transitions. Word has length 8 [2024-11-09 10:05:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:17,343 INFO L471 AbstractCegarLoop]: Abstraction has 3618 states and 6263 transitions. [2024-11-09 10:05:17,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2024-11-09 10:05:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6263 transitions. [2024-11-09 10:05:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 10:05:17,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:17,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:05:17,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:05:17,344 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:17,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-11-09 10:05:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:17,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102669453] [2024-11-09 10:05:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:17,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:17,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102669453] [2024-11-09 10:05:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102669453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:17,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:17,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:05:17,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901083896] [2024-11-09 10:05:17,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:17,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:05:17,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:17,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:05:17,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:05:17,392 INFO L87 Difference]: Start difference. First operand 3618 states and 6263 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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) [2024-11-09 10:05:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:18,574 INFO L93 Difference]: Finished difference Result 4881 states and 8573 transitions. [2024-11-09 10:05:18,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:05:18,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2024-11-09 10:05:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:18,602 INFO L225 Difference]: With dead ends: 4881 [2024-11-09 10:05:18,602 INFO L226 Difference]: Without dead ends: 4881 [2024-11-09 10:05:18,602 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 [2024-11-09 10:05:18,606 INFO L432 NwaCegarLoop]: 5027 mSDtfsCounter, 2076 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 7332 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:18,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 7332 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 10:05:18,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2024-11-09 10:05:18,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 3571. [2024-11-09 10:05:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2217 states have (on average 1.8822733423545333) internal successors, (4173), 3562 states have internal predecessors, (4173), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 6185 transitions. [2024-11-09 10:05:18,981 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 6185 transitions. Word has length 8 [2024-11-09 10:05:18,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:18,982 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 6185 transitions. [2024-11-09 10:05:18,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2024-11-09 10:05:18,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 6185 transitions. [2024-11-09 10:05:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 10:05:18,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:18,985 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:05:18,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:05:18,986 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:18,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1321452160, now seen corresponding path program 1 times [2024-11-09 10:05:18,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:18,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367243883] [2024-11-09 10:05:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:18,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:19,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:19,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367243883] [2024-11-09 10:05:19,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367243883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:19,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:19,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:05:19,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184275185] [2024-11-09 10:05:19,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:19,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:05:19,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:19,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:05:19,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:05:19,091 INFO L87 Difference]: Start difference. First operand 3571 states and 6185 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-09 10:05:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:19,886 INFO L93 Difference]: Finished difference Result 6790 states and 11777 transitions. [2024-11-09 10:05:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:05:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-09 10:05:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:19,929 INFO L225 Difference]: With dead ends: 6790 [2024-11-09 10:05:19,933 INFO L226 Difference]: Without dead ends: 6790 [2024-11-09 10:05:19,934 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 [2024-11-09 10:05:19,934 INFO L432 NwaCegarLoop]: 3407 mSDtfsCounter, 2105 mSDsluCounter, 5997 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 9404 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:19,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 9404 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 10:05:19,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6790 states. [2024-11-09 10:05:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6790 to 3573. [2024-11-09 10:05:20,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2219 states have (on average 1.8814781433077963) internal successors, (4175), 3564 states have internal predecessors, (4175), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 6187 transitions. [2024-11-09 10:05:20,482 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 6187 transitions. Word has length 10 [2024-11-09 10:05:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:20,482 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 6187 transitions. [2024-11-09 10:05:20,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-09 10:05:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 6187 transitions. [2024-11-09 10:05:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 10:05:20,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:20,483 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:05:20,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:05:20,483 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:20,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:20,484 INFO L85 PathProgramCache]: Analyzing trace with hash 183846334, now seen corresponding path program 1 times [2024-11-09 10:05:20,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:20,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145831878] [2024-11-09 10:05:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:20,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145831878] [2024-11-09 10:05:20,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145831878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:20,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:20,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:05:20,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099730792] [2024-11-09 10:05:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:20,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:05:20,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:20,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:05:20,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:05:20,551 INFO L87 Difference]: Start difference. First operand 3573 states and 6187 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-09 10:05:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:23,023 INFO L93 Difference]: Finished difference Result 3648 states and 6293 transitions. [2024-11-09 10:05:23,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:05:23,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-09 10:05:23,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:23,070 INFO L225 Difference]: With dead ends: 3648 [2024-11-09 10:05:23,070 INFO L226 Difference]: Without dead ends: 3648 [2024-11-09 10:05:23,071 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 [2024-11-09 10:05:23,072 INFO L432 NwaCegarLoop]: 2728 mSDtfsCounter, 2341 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:23,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 4328 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 10:05:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2024-11-09 10:05:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3550. [2024-11-09 10:05:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2219 states have (on average 1.8607480847228481) internal successors, (4129), 3541 states have internal predecessors, (4129), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6141 transitions. [2024-11-09 10:05:23,290 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6141 transitions. Word has length 18 [2024-11-09 10:05:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:23,290 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6141 transitions. [2024-11-09 10:05:23,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-09 10:05:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6141 transitions. [2024-11-09 10:05:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 10:05:23,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:23,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:05:23,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:05:23,292 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:23,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash 183846335, now seen corresponding path program 1 times [2024-11-09 10:05:23,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:23,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934454535] [2024-11-09 10:05:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:23,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:23,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:23,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934454535] [2024-11-09 10:05:23,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934454535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:23,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:23,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:05:23,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389765876] [2024-11-09 10:05:23,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:23,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:05:23,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:23,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:05:23,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:05:23,382 INFO L87 Difference]: Start difference. First operand 3550 states and 6141 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-09 10:05:23,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:23,428 INFO L93 Difference]: Finished difference Result 3412 states and 5935 transitions. [2024-11-09 10:05:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:05:23,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-09 10:05:23,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:23,441 INFO L225 Difference]: With dead ends: 3412 [2024-11-09 10:05:23,442 INFO L226 Difference]: Without dead ends: 3412 [2024-11-09 10:05:23,442 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 [2024-11-09 10:05:23,443 INFO L432 NwaCegarLoop]: 3009 mSDtfsCounter, 61 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:23,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5965 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:05:23,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2024-11-09 10:05:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3412. [2024-11-09 10:05:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 2093 states have (on average 1.8743430482560917) internal successors, (3923), 3403 states have internal predecessors, (3923), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:23,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 5935 transitions. [2024-11-09 10:05:23,707 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 5935 transitions. Word has length 18 [2024-11-09 10:05:23,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:23,707 INFO L471 AbstractCegarLoop]: Abstraction has 3412 states and 5935 transitions. [2024-11-09 10:05:23,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-09 10:05:23,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 5935 transitions. [2024-11-09 10:05:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 10:05:23,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:23,709 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] [2024-11-09 10:05:23,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:05:23,710 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:23,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:23,710 INFO L85 PathProgramCache]: Analyzing trace with hash 582825947, now seen corresponding path program 1 times [2024-11-09 10:05:23,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:23,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607918197] [2024-11-09 10:05:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:23,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607918197] [2024-11-09 10:05:23,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607918197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:23,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:05:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271345415] [2024-11-09 10:05:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:23,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:05:23,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:05:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:05:23,781 INFO L87 Difference]: Start difference. First operand 3412 states and 5935 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-09 10:05:23,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:23,869 INFO L93 Difference]: Finished difference Result 3383 states and 5885 transitions. [2024-11-09 10:05:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:05:23,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-09 10:05:23,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:23,880 INFO L225 Difference]: With dead ends: 3383 [2024-11-09 10:05:23,880 INFO L226 Difference]: Without dead ends: 3383 [2024-11-09 10:05:23,882 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 [2024-11-09 10:05:23,884 INFO L432 NwaCegarLoop]: 2974 mSDtfsCounter, 41 mSDsluCounter, 5920 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8894 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:23,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8894 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:05:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-09 10:05:24,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3377. [2024-11-09 10:05:24,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 2065 states have (on average 1.872639225181598) internal successors, (3867), 3368 states have internal predecessors, (3867), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5879 transitions. [2024-11-09 10:05:24,211 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5879 transitions. Word has length 20 [2024-11-09 10:05:24,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:24,211 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 5879 transitions. [2024-11-09 10:05:24,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-09 10:05:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5879 transitions. [2024-11-09 10:05:24,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 10:05:24,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:24,213 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] [2024-11-09 10:05:24,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:05:24,213 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:24,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1292750889, now seen corresponding path program 1 times [2024-11-09 10:05:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:24,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260550232] [2024-11-09 10:05:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:24,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:24,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:24,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260550232] [2024-11-09 10:05:24,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260550232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:24,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:24,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:05:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692811628] [2024-11-09 10:05:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:24,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:05:24,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:05:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:05:24,365 INFO L87 Difference]: Start difference. First operand 3377 states and 5879 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-09 10:05:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:26,955 INFO L93 Difference]: Finished difference Result 6073 states and 10832 transitions. [2024-11-09 10:05:26,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:05:26,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-09 10:05:26,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:26,975 INFO L225 Difference]: With dead ends: 6073 [2024-11-09 10:05:26,976 INFO L226 Difference]: Without dead ends: 6073 [2024-11-09 10:05:26,976 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 [2024-11-09 10:05:26,978 INFO L432 NwaCegarLoop]: 2812 mSDtfsCounter, 1817 mSDsluCounter, 3579 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:26,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 6391 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 10:05:26,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-11-09 10:05:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 3373. [2024-11-09 10:05:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2065 states have (on average 1.8687651331719128) internal successors, (3859), 3364 states have internal predecessors, (3859), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 5871 transitions. [2024-11-09 10:05:27,362 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 5871 transitions. Word has length 34 [2024-11-09 10:05:27,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:27,363 INFO L471 AbstractCegarLoop]: Abstraction has 3373 states and 5871 transitions. [2024-11-09 10:05:27,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-09 10:05:27,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 5871 transitions. [2024-11-09 10:05:27,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 10:05:27,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:27,365 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] [2024-11-09 10:05:27,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:05:27,365 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:27,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:27,367 INFO L85 PathProgramCache]: Analyzing trace with hash 808848765, now seen corresponding path program 1 times [2024-11-09 10:05:27,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:27,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041866222] [2024-11-09 10:05:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:27,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:27,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:27,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041866222] [2024-11-09 10:05:27,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041866222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:27,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:27,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:05:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813871799] [2024-11-09 10:05:27,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:27,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:05:27,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:05:27,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:05:27,476 INFO L87 Difference]: Start difference. First operand 3373 states and 5871 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) [2024-11-09 10:05:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:27,549 INFO L93 Difference]: Finished difference Result 3373 states and 5863 transitions. [2024-11-09 10:05:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:05:27,550 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 [2024-11-09 10:05:27,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:27,563 INFO L225 Difference]: With dead ends: 3373 [2024-11-09 10:05:27,564 INFO L226 Difference]: Without dead ends: 3373 [2024-11-09 10:05:27,564 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 [2024-11-09 10:05:27,565 INFO L432 NwaCegarLoop]: 2969 mSDtfsCounter, 21 mSDsluCounter, 5907 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8876 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:27,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8876 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:05:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2024-11-09 10:05:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3373. [2024-11-09 10:05:27,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2065 states have (on average 1.8648910411622277) internal successors, (3851), 3364 states have internal predecessors, (3851), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 10:05:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 5863 transitions. [2024-11-09 10:05:27,812 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 5863 transitions. Word has length 68 [2024-11-09 10:05:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:27,813 INFO L471 AbstractCegarLoop]: Abstraction has 3373 states and 5863 transitions. [2024-11-09 10:05:27,814 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) [2024-11-09 10:05:27,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 5863 transitions. [2024-11-09 10:05:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 10:05:27,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:27,816 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] [2024-11-09 10:05:27,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:05:27,816 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:27,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash -324916151, now seen corresponding path program 1 times [2024-11-09 10:05:27,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:27,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326306301] [2024-11-09 10:05:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:27,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:27,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:27,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326306301] [2024-11-09 10:05:27,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326306301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:27,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:27,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:05:27,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986889465] [2024-11-09 10:05:27,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:27,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:05:27,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:27,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:05:27,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:05:27,927 INFO L87 Difference]: Start difference. First operand 3373 states and 5863 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) [2024-11-09 10:05:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:28,025 INFO L93 Difference]: Finished difference Result 5883 states and 10585 transitions. [2024-11-09 10:05:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:05:28,026 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 [2024-11-09 10:05:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:28,045 INFO L225 Difference]: With dead ends: 5883 [2024-11-09 10:05:28,046 INFO L226 Difference]: Without dead ends: 5883 [2024-11-09 10:05:28,046 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 [2024-11-09 10:05:28,047 INFO L432 NwaCegarLoop]: 3283 mSDtfsCounter, 1354 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 6222 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:28,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 6222 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:05:28,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2024-11-09 10:05:28,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5826. [2024-11-09 10:05:28,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 3518 states have (on average 1.8675383740761797) internal successors, (6570), 5817 states have internal predecessors, (6570), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 10:05:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 10582 transitions. [2024-11-09 10:05:28,524 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 10582 transitions. Word has length 76 [2024-11-09 10:05:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:28,526 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 10582 transitions. [2024-11-09 10:05:28,526 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) [2024-11-09 10:05:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 10582 transitions. [2024-11-09 10:05:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 10:05:28,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:28,529 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] [2024-11-09 10:05:28,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:05:28,530 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:28,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1172114397, now seen corresponding path program 1 times [2024-11-09 10:05:28,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:28,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456170120] [2024-11-09 10:05:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:28,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:28,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456170120] [2024-11-09 10:05:28,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456170120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:28,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:28,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:05:28,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772139988] [2024-11-09 10:05:28,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:28,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:05:28,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:28,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:05:28,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:05:28,992 INFO L87 Difference]: Start difference. First operand 5826 states and 10582 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) [2024-11-09 10:05:31,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:31,681 INFO L93 Difference]: Finished difference Result 5788 states and 10530 transitions. [2024-11-09 10:05:31,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:05:31,682 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 [2024-11-09 10:05:31,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:31,703 INFO L225 Difference]: With dead ends: 5788 [2024-11-09 10:05:31,703 INFO L226 Difference]: Without dead ends: 5788 [2024-11-09 10:05:31,703 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 [2024-11-09 10:05:31,704 INFO L432 NwaCegarLoop]: 2492 mSDtfsCounter, 3737 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4240 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:31,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4240 Valid, 3944 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 10:05:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2024-11-09 10:05:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5710. [2024-11-09 10:05:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 3440 states have (on average 1.8494186046511627) internal successors, (6362), 5701 states have internal predecessors, (6362), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 10:05:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 10374 transitions. [2024-11-09 10:05:32,215 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 10374 transitions. Word has length 79 [2024-11-09 10:05:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:32,216 INFO L471 AbstractCegarLoop]: Abstraction has 5710 states and 10374 transitions. [2024-11-09 10:05:32,216 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) [2024-11-09 10:05:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 10374 transitions. [2024-11-09 10:05:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 10:05:32,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:32,218 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] [2024-11-09 10:05:32,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 10:05:32,218 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:32,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1012783132, now seen corresponding path program 1 times [2024-11-09 10:05:32,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:32,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114834066] [2024-11-09 10:05:32,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:32,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:32,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:32,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114834066] [2024-11-09 10:05:32,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114834066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:32,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:32,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:05:32,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408405287] [2024-11-09 10:05:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:32,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:05:32,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:32,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:05:32,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:05:32,515 INFO L87 Difference]: Start difference. First operand 5710 states and 10374 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) [2024-11-09 10:05:33,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:33,184 INFO L93 Difference]: Finished difference Result 5709 states and 10372 transitions. [2024-11-09 10:05:33,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:05:33,188 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 [2024-11-09 10:05:33,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:33,205 INFO L225 Difference]: With dead ends: 5709 [2024-11-09 10:05:33,205 INFO L226 Difference]: Without dead ends: 5709 [2024-11-09 10:05:33,205 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 [2024-11-09 10:05:33,206 INFO L432 NwaCegarLoop]: 2942 mSDtfsCounter, 2 mSDsluCounter, 7858 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10800 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:33,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10800 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 10:05:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5709 states. [2024-11-09 10:05:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5709 to 5709. [2024-11-09 10:05:33,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5709 states, 3440 states have (on average 1.8488372093023255) internal successors, (6360), 5700 states have internal predecessors, (6360), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 10:05:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5709 states to 5709 states and 10372 transitions. [2024-11-09 10:05:33,663 INFO L78 Accepts]: Start accepts. Automaton has 5709 states and 10372 transitions. Word has length 84 [2024-11-09 10:05:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:33,664 INFO L471 AbstractCegarLoop]: Abstraction has 5709 states and 10372 transitions. [2024-11-09 10:05:33,664 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) [2024-11-09 10:05:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5709 states and 10372 transitions. [2024-11-09 10:05:33,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 10:05:33,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:33,667 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] [2024-11-09 10:05:33,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 10:05:33,668 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:33,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:33,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1012783133, now seen corresponding path program 1 times [2024-11-09 10:05:33,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621926854] [2024-11-09 10:05:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:33,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:34,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:34,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621926854] [2024-11-09 10:05:34,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621926854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:34,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:34,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:05:34,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955460300] [2024-11-09 10:05:34,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:34,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:05:34,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:05:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:05:34,203 INFO L87 Difference]: Start difference. First operand 5709 states and 10372 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) [2024-11-09 10:05:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:34,904 INFO L93 Difference]: Finished difference Result 5708 states and 10370 transitions. [2024-11-09 10:05:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:05:34,905 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 [2024-11-09 10:05:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:34,921 INFO L225 Difference]: With dead ends: 5708 [2024-11-09 10:05:34,921 INFO L226 Difference]: Without dead ends: 5708 [2024-11-09 10:05:34,921 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 [2024-11-09 10:05:34,922 INFO L432 NwaCegarLoop]: 2942 mSDtfsCounter, 1 mSDsluCounter, 7842 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10784 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:34,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10784 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 10:05:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5708 states. [2024-11-09 10:05:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5708 to 5708. [2024-11-09 10:05:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 3438 states have (on average 1.8493310063990693) internal successors, (6358), 5699 states have internal predecessors, (6358), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 10:05:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 10370 transitions. [2024-11-09 10:05:35,431 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 10370 transitions. Word has length 84 [2024-11-09 10:05:35,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:35,432 INFO L471 AbstractCegarLoop]: Abstraction has 5708 states and 10370 transitions. [2024-11-09 10:05:35,432 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) [2024-11-09 10:05:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 10370 transitions. [2024-11-09 10:05:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 10:05:35,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:35,433 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] [2024-11-09 10:05:35,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 10:05:35,433 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:35,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:35,434 INFO L85 PathProgramCache]: Analyzing trace with hash 901507843, now seen corresponding path program 1 times [2024-11-09 10:05:35,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:35,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268419686] [2024-11-09 10:05:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:35,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:35,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 10:05:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:35,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:35,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268419686] [2024-11-09 10:05:35,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268419686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:35,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:35,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:05:35,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067197555] [2024-11-09 10:05:35,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:35,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:05:35,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:35,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:05:35,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:05:35,706 INFO L87 Difference]: Start difference. First operand 5708 states and 10370 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) [2024-11-09 10:05:40,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:40,077 INFO L93 Difference]: Finished difference Result 5726 states and 10396 transitions. [2024-11-09 10:05:40,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:05:40,078 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 [2024-11-09 10:05:40,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:40,128 INFO L225 Difference]: With dead ends: 5726 [2024-11-09 10:05:40,131 INFO L226 Difference]: Without dead ends: 5726 [2024-11-09 10:05:40,132 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 [2024-11-09 10:05:40,136 INFO L432 NwaCegarLoop]: 2927 mSDtfsCounter, 17 mSDsluCounter, 9915 mSDsCounter, 0 mSdLazyCounter, 4312 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12842 SdHoareTripleChecker+Invalid, 4817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 4312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:40,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 12842 Invalid, 4817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [505 Valid, 4312 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 10:05:40,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5726 states. [2024-11-09 10:05:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 5717. [2024-11-09 10:05:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3446 states have (on average 1.8482298316889147) internal successors, (6369), 5706 states have internal predecessors, (6369), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-09 10:05:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 10386 transitions. [2024-11-09 10:05:40,609 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 10386 transitions. Word has length 92 [2024-11-09 10:05:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:40,609 INFO L471 AbstractCegarLoop]: Abstraction has 5717 states and 10386 transitions. [2024-11-09 10:05:40,609 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) [2024-11-09 10:05:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 10386 transitions. [2024-11-09 10:05:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 10:05:40,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:40,610 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] [2024-11-09 10:05:40,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 10:05:40,611 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:40,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:40,611 INFO L85 PathProgramCache]: Analyzing trace with hash 901507844, now seen corresponding path program 1 times [2024-11-09 10:05:40,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:40,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506754527] [2024-11-09 10:05:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:40,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:41,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 10:05:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:41,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:41,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506754527] [2024-11-09 10:05:41,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506754527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:05:41,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:05:41,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:05:41,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371969617] [2024-11-09 10:05:41,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:05:41,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:05:41,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:41,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:05:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:05:41,226 INFO L87 Difference]: Start difference. First operand 5717 states and 10386 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) [2024-11-09 10:05:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:45,317 INFO L93 Difference]: Finished difference Result 5717 states and 10384 transitions. [2024-11-09 10:05:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:05:45,317 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 [2024-11-09 10:05:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:45,338 INFO L225 Difference]: With dead ends: 5717 [2024-11-09 10:05:45,338 INFO L226 Difference]: Without dead ends: 5717 [2024-11-09 10:05:45,339 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 [2024-11-09 10:05:45,339 INFO L432 NwaCegarLoop]: 2931 mSDtfsCounter, 18 mSDsluCounter, 8135 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11066 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:45,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11066 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1007 Valid, 3140 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 10:05:45,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5717 states. [2024-11-09 10:05:45,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5717 to 5717. [2024-11-09 10:05:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3446 states have (on average 1.8476494486361) internal successors, (6367), 5706 states have internal predecessors, (6367), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-09 10:05:45,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 10384 transitions. [2024-11-09 10:05:45,806 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 10384 transitions. Word has length 92 [2024-11-09 10:05:45,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:05:45,807 INFO L471 AbstractCegarLoop]: Abstraction has 5717 states and 10384 transitions. [2024-11-09 10:05:45,807 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) [2024-11-09 10:05:45,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 10384 transitions. [2024-11-09 10:05:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 10:05:45,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:05:45,808 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] [2024-11-09 10:05:45,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 10:05:45,808 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:05:45,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:05:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 97138687, now seen corresponding path program 1 times [2024-11-09 10:05:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:05:45,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597543943] [2024-11-09 10:05:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:05:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:46,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 10:05:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:46,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:05:46,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597543943] [2024-11-09 10:05:46,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597543943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:05:46,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365527669] [2024-11-09 10:05:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:05:46,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:05:46,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:05:46,400 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) [2024-11-09 10:05:46,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 10:05:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:05:46,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 10:05:46,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:05:46,668 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 [2024-11-09 10:05:46,829 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-09 10:05:46,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-09 10:05:46,875 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 [2024-11-09 10:05:46,964 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 [2024-11-09 10:05:47,178 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 10:05:47,178 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 [2024-11-09 10:05:47,229 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 [2024-11-09 10:05:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:05:47,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:05:47,318 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_646 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_646) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-09 10:05:47,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365527669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:05:47,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 10:05:47,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-09 10:05:47,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080460826] [2024-11-09 10:05:47,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 10:05:47,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 10:05:47,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:05:47,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 10:05:47,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=292, Unknown=1, NotChecked=34, Total=380 [2024-11-09 10:05:47,323 INFO L87 Difference]: Start difference. First operand 5717 states and 10384 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) [2024-11-09 10:05:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:05:59,668 INFO L93 Difference]: Finished difference Result 5724 states and 10390 transitions. [2024-11-09 10:05:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 10:05:59,669 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 [2024-11-09 10:05:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:05:59,684 INFO L225 Difference]: With dead ends: 5724 [2024-11-09 10:05:59,685 INFO L226 Difference]: Without dead ends: 5724 [2024-11-09 10:05:59,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=469, Unknown=1, NotChecked=44, Total=600 [2024-11-09 10:05:59,686 INFO L432 NwaCegarLoop]: 2616 mSDtfsCounter, 1881 mSDsluCounter, 21246 mSDsCounter, 0 mSdLazyCounter, 14384 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 23862 SdHoareTripleChecker+Invalid, 14899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 14384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-09 10:05:59,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 23862 Invalid, 14899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 14384 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-11-09 10:05:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2024-11-09 10:06:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5721. [2024-11-09 10:06:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 3450 states have (on average 1.846376811594203) internal successors, (6370), 5709 states have internal predecessors, (6370), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-09 10:06:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 10384 transitions. [2024-11-09 10:06:00,271 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 10384 transitions. Word has length 93 [2024-11-09 10:06:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:06:00,272 INFO L471 AbstractCegarLoop]: Abstraction has 5721 states and 10384 transitions. [2024-11-09 10:06:00,272 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) [2024-11-09 10:06:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 10384 transitions. [2024-11-09 10:06:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 10:06:00,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:06:00,274 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] [2024-11-09 10:06:00,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 10:06:00,477 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,SelfDestructingSolverStorable16 [2024-11-09 10:06:00,478 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:06:00,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:06:00,481 INFO L85 PathProgramCache]: Analyzing trace with hash 97138688, now seen corresponding path program 1 times [2024-11-09 10:06:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:06:00,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189009334] [2024-11-09 10:06:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:06:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:06:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:06:01,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 10:06:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:06:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:06:01,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:06:01,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189009334] [2024-11-09 10:06:01,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189009334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:06:01,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969634403] [2024-11-09 10:06:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:06:01,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:06:01,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:06:01,292 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) [2024-11-09 10:06:01,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 10:06:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:06:01,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 10:06:01,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:06:01,514 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 [2024-11-09 10:06:01,640 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 10:06:01,641 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 [2024-11-09 10:06:01,646 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 [2024-11-09 10:06:01,676 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 [2024-11-09 10:06:01,680 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 [2024-11-09 10:06:01,769 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 [2024-11-09 10:06:01,775 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 [2024-11-09 10:06:01,888 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 10:06:01,888 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 [2024-11-09 10:06:01,894 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 [2024-11-09 10:06:01,937 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 [2024-11-09 10:06:01,947 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 [2024-11-09 10:06:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:06:01,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:06:02,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969634403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:06:02,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 10:06:02,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-09 10:06:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481727256] [2024-11-09 10:06:02,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 10:06:02,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 10:06:02,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:06:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 10:06:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=389, Unknown=8, NotChecked=0, Total=462 [2024-11-09 10:06:02,133 INFO L87 Difference]: Start difference. First operand 5721 states and 10384 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) [2024-11-09 10:06:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:06:13,558 INFO L93 Difference]: Finished difference Result 5723 states and 10388 transitions. [2024-11-09 10:06:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 10:06:13,559 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 [2024-11-09 10:06:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:06:13,577 INFO L225 Difference]: With dead ends: 5723 [2024-11-09 10:06:13,577 INFO L226 Difference]: Without dead ends: 5723 [2024-11-09 10:06:13,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=588, Unknown=8, NotChecked=0, Total=702 [2024-11-09 10:06:13,578 INFO L432 NwaCegarLoop]: 2619 mSDtfsCounter, 1889 mSDsluCounter, 18228 mSDsCounter, 0 mSdLazyCounter, 10975 mSolverCounterSat, 1022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 20847 SdHoareTripleChecker+Invalid, 11997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 10975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-09 10:06:13,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 20847 Invalid, 11997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1022 Valid, 10975 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-09 10:06:13,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5723 states. [2024-11-09 10:06:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5723 to 5711. [2024-11-09 10:06:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5711 states, 3442 states have (on average 1.847472399767577) internal successors, (6359), 5701 states have internal predecessors, (6359), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 10:06:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5711 states to 5711 states and 10371 transitions. [2024-11-09 10:06:14,105 INFO L78 Accepts]: Start accepts. Automaton has 5711 states and 10371 transitions. Word has length 93 [2024-11-09 10:06:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:06:14,105 INFO L471 AbstractCegarLoop]: Abstraction has 5711 states and 10371 transitions. [2024-11-09 10:06:14,106 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) [2024-11-09 10:06:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5711 states and 10371 transitions. [2024-11-09 10:06:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 10:06:14,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:06:14,107 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] [2024-11-09 10:06:14,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 10:06:14,307 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,SelfDestructingSolverStorable17 [2024-11-09 10:06:14,308 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 10:06:14,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:06:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash 390288452, now seen corresponding path program 1 times [2024-11-09 10:06:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:06:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865988819] [2024-11-09 10:06:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:06:14,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:06:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:06:14,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 10:06:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:06:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:06:14,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:06:14,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865988819] [2024-11-09 10:06:14,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865988819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:06:14,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:06:14,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 10:06:14,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188557717] [2024-11-09 10:06:14,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:06:14,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:06:14,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:06:14,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:06:14,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:06:14,924 INFO L87 Difference]: Start difference. First operand 5711 states and 10371 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)