./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/20020406-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety/20020406-1.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 1ecdf6fdf9ec72145fabb79894bcc278b3e5646bc4893dbabc4bb180fa53c5ae --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:39:30,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:39:30,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 06:39:30,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:39:30,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:39:30,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:39:30,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:39:30,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:39:30,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 06:39:30,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 06:39:30,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:39:30,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:39:30,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:39:30,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:39:31,001 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:39:31,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:39:31,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:39:31,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:39:31,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:39:31,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:39:31,003 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 06:39:31,007 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 06:39:31,007 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 06:39:31,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:39:31,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 06:39:31,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:39:31,008 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:39:31,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:39:31,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:39:31,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:39:31,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:39:31,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 06:39:31,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:39:31,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:39:31,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:39:31,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:39:31,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:39:31,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:39:31,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:39:31,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:39:31,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:39:31,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:39:31,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdf6fdf9ec72145fabb79894bcc278b3e5646bc4893dbabc4bb180fa53c5ae [2024-11-19 06:39:31,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:39:31,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:39:31,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:39:31,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:39:31,289 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:39:31,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/20020406-1.i [2024-11-19 06:39:32,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:39:33,078 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:39:33,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/20020406-1.i [2024-11-19 06:39:33,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e192d9f2/54f57dc091884201a12d0a8d1ad0d321/FLAGb05b835f8 [2024-11-19 06:39:33,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e192d9f2/54f57dc091884201a12d0a8d1ad0d321 [2024-11-19 06:39:33,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:39:33,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:39:33,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:39:33,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:39:33,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:39:33,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:33" (1/1) ... [2024-11-19 06:39:33,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdf2212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:33, skipping insertion in model container [2024-11-19 06:39:33,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:33" (1/1) ... [2024-11-19 06:39:33,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:39:33,845 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:39:33,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:39:33,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:39:33,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:39:34,004 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:39:34,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34 WrapperNode [2024-11-19 06:39:34,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:39:34,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:39:34,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:39:34,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:39:34,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,069 INFO L138 Inliner]: procedures = 283, calls = 76, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-11-19 06:39:34,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:39:34,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:39:34,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:39:34,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:39:34,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,118 INFO L175 MemorySlicer]: Split 30 memory accesses to 4 slices as follows [9, 2, 17, 2]. 57 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 16 writes are split as follows [6, 0, 8, 2]. [2024-11-19 06:39:34,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:39:34,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:39:34,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:39:34,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:39:34,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (1/1) ... [2024-11-19 06:39:34,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:39:34,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:34,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:39:34,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:39:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFdeg [2024-11-19 06:39:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFdeg [2024-11-19 06:39:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:39:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 06:39:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 06:39:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 06:39:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 06:39:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFnew [2024-11-19 06:39:34,255 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFnew [2024-11-19 06:39:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFfree [2024-11-19 06:39:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFfree [2024-11-19 06:39:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFshift_add [2024-11-19 06:39:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFshift_add [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure FFmul [2024-11-19 06:39:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure FFmul [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 06:39:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFexgcd [2024-11-19 06:39:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFexgcd [2024-11-19 06:39:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 06:39:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 06:39:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 06:39:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 06:39:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 06:39:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:39:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 06:39:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 06:39:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 06:39:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 06:39:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFswap [2024-11-19 06:39:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFswap [2024-11-19 06:39:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFcopy [2024-11-19 06:39:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFcopy [2024-11-19 06:39:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 06:39:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 06:39:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 06:39:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 06:39:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:39:34,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:39:34,443 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:39:34,445 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:39:34,945 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-19 06:39:34,946 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:39:34,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:39:34,964 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 06:39:34,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:34 BoogieIcfgContainer [2024-11-19 06:39:34,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:39:34,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:39:34,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:39:34,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:39:34,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:39:33" (1/3) ... [2024-11-19 06:39:34,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f19a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:39:34, skipping insertion in model container [2024-11-19 06:39:34,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:34" (2/3) ... [2024-11-19 06:39:34,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f19a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:39:34, skipping insertion in model container [2024-11-19 06:39:34,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:34" (3/3) ... [2024-11-19 06:39:34,973 INFO L112 eAbstractionObserver]: Analyzing ICFG 20020406-1.i [2024-11-19 06:39:34,987 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:39:34,987 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-11-19 06:39:35,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:39:35,035 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;@7c86b5c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:39:35,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-19 06:39:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 95 states have (on average 1.694736842105263) internal successors, (161), 151 states have internal predecessors, (161), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 06:39:35,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:35,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 06:39:35,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:35,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash 232998552, now seen corresponding path program 1 times [2024-11-19 06:39:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837331878] [2024-11-19 06:39:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:35,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:35,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:35,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837331878] [2024-11-19 06:39:35,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837331878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:35,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:35,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:39:35,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496783228] [2024-11-19 06:39:35,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:35,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:39:35,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:35,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:39:35,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:39:35,419 INFO L87 Difference]: Start difference. First operand has 192 states, 95 states have (on average 1.694736842105263) internal successors, (161), 151 states have internal predecessors, (161), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:35,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:35,640 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2024-11-19 06:39:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:39:35,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-19 06:39:35,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:35,655 INFO L225 Difference]: With dead ends: 187 [2024-11-19 06:39:35,655 INFO L226 Difference]: Without dead ends: 185 [2024-11-19 06:39:35,657 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 [2024-11-19 06:39:35,662 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 15 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:35,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 361 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:35,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-19 06:39:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-19 06:39:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 92 states have (on average 1.641304347826087) internal successors, (151), 144 states have internal predecessors, (151), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 221 transitions. [2024-11-19 06:39:35,733 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 221 transitions. Word has length 5 [2024-11-19 06:39:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:35,733 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 221 transitions. [2024-11-19 06:39:35,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 221 transitions. [2024-11-19 06:39:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 06:39:35,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:35,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 06:39:35,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:39:35,735 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:35,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:35,736 INFO L85 PathProgramCache]: Analyzing trace with hash 232998553, now seen corresponding path program 1 times [2024-11-19 06:39:35,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:35,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973005641] [2024-11-19 06:39:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:35,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:35,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:35,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973005641] [2024-11-19 06:39:35,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973005641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:35,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:35,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:39:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092420821] [2024-11-19 06:39:35,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:35,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:39:35,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:39:35,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:39:35,910 INFO L87 Difference]: Start difference. First operand 185 states and 221 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:36,061 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2024-11-19 06:39:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:39:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-19 06:39:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:36,064 INFO L225 Difference]: With dead ends: 187 [2024-11-19 06:39:36,064 INFO L226 Difference]: Without dead ends: 187 [2024-11-19 06:39:36,065 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 [2024-11-19 06:39:36,066 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 4 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:36,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 376 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:39:36,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-19 06:39:36,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2024-11-19 06:39:36,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 94 states have (on average 1.6170212765957446) internal successors, (152), 145 states have internal predecessors, (152), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 222 transitions. [2024-11-19 06:39:36,087 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 222 transitions. Word has length 5 [2024-11-19 06:39:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:36,088 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 222 transitions. [2024-11-19 06:39:36,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 222 transitions. [2024-11-19 06:39:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 06:39:36,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:36,090 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:36,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:39:36,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting DUPFFnewErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:36,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:36,091 INFO L85 PathProgramCache]: Analyzing trace with hash 573308570, now seen corresponding path program 1 times [2024-11-19 06:39:36,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:36,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046992664] [2024-11-19 06:39:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:36,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046992664] [2024-11-19 06:39:36,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046992664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:36,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:36,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:39:36,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967270422] [2024-11-19 06:39:36,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:36,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:39:36,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:36,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:39:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:39:36,337 INFO L87 Difference]: Start difference. First operand 186 states and 222 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:36,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:36,527 INFO L93 Difference]: Finished difference Result 182 states and 218 transitions. [2024-11-19 06:39:36,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:39:36,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-19 06:39:36,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:36,529 INFO L225 Difference]: With dead ends: 182 [2024-11-19 06:39:36,531 INFO L226 Difference]: Without dead ends: 182 [2024-11-19 06:39:36,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:39:36,533 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 14 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:36,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 490 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-19 06:39:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2024-11-19 06:39:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 139 states have internal predecessors, (146), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 216 transitions. [2024-11-19 06:39:36,556 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 216 transitions. Word has length 7 [2024-11-19 06:39:36,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:36,556 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 216 transitions. [2024-11-19 06:39:36,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 216 transitions. [2024-11-19 06:39:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 06:39:36,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:36,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:36,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:39:36,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting DUPFFnewErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:36,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash 409168730, now seen corresponding path program 1 times [2024-11-19 06:39:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766738942] [2024-11-19 06:39:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:36,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:36,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:36,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766738942] [2024-11-19 06:39:36,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766738942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:36,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:36,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:39:36,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318908312] [2024-11-19 06:39:36,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:36,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:39:36,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:39:36,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:39:36,799 INFO L87 Difference]: Start difference. First operand 180 states and 216 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:37,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:37,027 INFO L93 Difference]: Finished difference Result 182 states and 218 transitions. [2024-11-19 06:39:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:39:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-19 06:39:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:37,033 INFO L225 Difference]: With dead ends: 182 [2024-11-19 06:39:37,033 INFO L226 Difference]: Without dead ends: 182 [2024-11-19 06:39:37,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 06:39:37,034 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 12 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:37,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 826 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-19 06:39:37,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2024-11-19 06:39:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 92 states have (on average 1.576086956521739) internal successors, (145), 138 states have internal predecessors, (145), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 215 transitions. [2024-11-19 06:39:37,053 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 215 transitions. Word has length 11 [2024-11-19 06:39:37,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:37,054 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 215 transitions. [2024-11-19 06:39:37,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:37,054 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 215 transitions. [2024-11-19 06:39:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 06:39:37,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:37,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:37,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:39:37,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:37,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:37,056 INFO L85 PathProgramCache]: Analyzing trace with hash -200671202, now seen corresponding path program 1 times [2024-11-19 06:39:37,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:37,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098118541] [2024-11-19 06:39:37,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:37,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:37,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:37,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098118541] [2024-11-19 06:39:37,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098118541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:37,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 06:39:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979766870] [2024-11-19 06:39:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:37,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 06:39:37,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 06:39:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 06:39:37,392 INFO L87 Difference]: Start difference. First operand 179 states and 215 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:37,736 INFO L93 Difference]: Finished difference Result 195 states and 231 transitions. [2024-11-19 06:39:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 06:39:37,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-19 06:39:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:37,738 INFO L225 Difference]: With dead ends: 195 [2024-11-19 06:39:37,738 INFO L226 Difference]: Without dead ends: 195 [2024-11-19 06:39:37,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:39:37,740 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 25 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:37,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1244 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-19 06:39:37,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-19 06:39:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 107 states have (on average 1.5046728971962617) internal successors, (161), 153 states have internal predecessors, (161), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 231 transitions. [2024-11-19 06:39:37,750 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 231 transitions. Word has length 12 [2024-11-19 06:39:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:37,751 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 231 transitions. [2024-11-19 06:39:37,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:39:37,751 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 231 transitions. [2024-11-19 06:39:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 06:39:37,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:37,752 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] [2024-11-19 06:39:37,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:39:37,752 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:37,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:37,753 INFO L85 PathProgramCache]: Analyzing trace with hash 54082167, now seen corresponding path program 1 times [2024-11-19 06:39:37,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:37,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664805972] [2024-11-19 06:39:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:37,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:37,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:37,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664805972] [2024-11-19 06:39:37,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664805972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:37,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:37,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:39:37,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999697350] [2024-11-19 06:39:37,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:37,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:39:37,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:37,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:39:37,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:39:37,899 INFO L87 Difference]: Start difference. First operand 195 states and 231 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-19 06:39:38,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:38,089 INFO L93 Difference]: Finished difference Result 193 states and 229 transitions. [2024-11-19 06:39:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:39:38,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 21 [2024-11-19 06:39:38,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:38,092 INFO L225 Difference]: With dead ends: 193 [2024-11-19 06:39:38,092 INFO L226 Difference]: Without dead ends: 193 [2024-11-19 06:39:38,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:39:38,093 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 10 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:38,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 783 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-19 06:39:38,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-19 06:39:38,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 107 states have (on average 1.485981308411215) internal successors, (159), 151 states have internal predecessors, (159), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 229 transitions. [2024-11-19 06:39:38,106 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 229 transitions. Word has length 21 [2024-11-19 06:39:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:38,107 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 229 transitions. [2024-11-19 06:39:38,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-19 06:39:38,107 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 229 transitions. [2024-11-19 06:39:38,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 06:39:38,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:38,108 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] [2024-11-19 06:39:38,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 06:39:38,109 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:38,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash 54082168, now seen corresponding path program 1 times [2024-11-19 06:39:38,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:38,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159340332] [2024-11-19 06:39:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:38,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:38,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:38,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159340332] [2024-11-19 06:39:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159340332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:38,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:38,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 06:39:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559639751] [2024-11-19 06:39:38,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:38,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:39:38,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:38,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:39:38,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:39:38,335 INFO L87 Difference]: Start difference. First operand 193 states and 229 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-19 06:39:38,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:38,523 INFO L93 Difference]: Finished difference Result 191 states and 227 transitions. [2024-11-19 06:39:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:39:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 21 [2024-11-19 06:39:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:38,525 INFO L225 Difference]: With dead ends: 191 [2024-11-19 06:39:38,525 INFO L226 Difference]: Without dead ends: 191 [2024-11-19 06:39:38,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:39:38,527 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 10 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:38,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 980 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-19 06:39:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-19 06:39:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 107 states have (on average 1.4672897196261683) internal successors, (157), 149 states have internal predecessors, (157), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:38,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 227 transitions. [2024-11-19 06:39:38,542 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 227 transitions. Word has length 21 [2024-11-19 06:39:38,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:38,542 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 227 transitions. [2024-11-19 06:39:38,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-19 06:39:38,543 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 227 transitions. [2024-11-19 06:39:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-19 06:39:38,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:38,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:38,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:39:38,544 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:38,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1676547370, now seen corresponding path program 1 times [2024-11-19 06:39:38,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:38,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668269783] [2024-11-19 06:39:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:38,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668269783] [2024-11-19 06:39:38,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668269783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:38,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:38,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 06:39:38,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131352998] [2024-11-19 06:39:38,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:38,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:39:38,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:38,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:39:38,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:39:38,785 INFO L87 Difference]: Start difference. First operand 191 states and 227 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2024-11-19 06:39:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:38,908 INFO L93 Difference]: Finished difference Result 217 states and 260 transitions. [2024-11-19 06:39:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 06:39:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 22 [2024-11-19 06:39:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:38,913 INFO L225 Difference]: With dead ends: 217 [2024-11-19 06:39:38,913 INFO L226 Difference]: Without dead ends: 211 [2024-11-19 06:39:38,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 06:39:38,915 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 18 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:38,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1162 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:39:38,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-19 06:39:38,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2024-11-19 06:39:38,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 124 states have (on average 1.435483870967742) internal successors, (178), 166 states have internal predecessors, (178), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2024-11-19 06:39:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 252 transitions. [2024-11-19 06:39:38,927 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 252 transitions. Word has length 22 [2024-11-19 06:39:38,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:38,928 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 252 transitions. [2024-11-19 06:39:38,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2024-11-19 06:39:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 252 transitions. [2024-11-19 06:39:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 06:39:38,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:38,931 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] [2024-11-19 06:39:38,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:39:38,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:38,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:38,932 INFO L85 PathProgramCache]: Analyzing trace with hash -809998102, now seen corresponding path program 1 times [2024-11-19 06:39:38,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381558727] [2024-11-19 06:39:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:39,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381558727] [2024-11-19 06:39:39,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381558727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:39,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095031171] [2024-11-19 06:39:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:39,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:39,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:39,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:39,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:39:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:39,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-19 06:39:39,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:39,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:39,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:39,695 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 47 treesize of output 29 [2024-11-19 06:39:39,703 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 38 treesize of output 26 [2024-11-19 06:39:39,719 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 51 treesize of output 29 [2024-11-19 06:39:39,726 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 42 treesize of output 26 [2024-11-19 06:39:39,823 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 29 treesize of output 17 [2024-11-19 06:39:39,829 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 32 treesize of output 14 [2024-11-19 06:39:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:39:39,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:39:39,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095031171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:39,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:39:39,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18 [2024-11-19 06:39:39,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919470747] [2024-11-19 06:39:39,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:39,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 06:39:39,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 06:39:39,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-19 06:39:39,854 INFO L87 Difference]: Start difference. First operand 209 states and 252 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2024-11-19 06:39:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:40,304 INFO L93 Difference]: Finished difference Result 213 states and 260 transitions. [2024-11-19 06:39:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 06:39:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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 23 [2024-11-19 06:39:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:40,306 INFO L225 Difference]: With dead ends: 213 [2024-11-19 06:39:40,306 INFO L226 Difference]: Without dead ends: 213 [2024-11-19 06:39:40,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-11-19 06:39:40,307 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 23 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:40,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1276 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:39:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-19 06:39:40,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 208. [2024-11-19 06:39:40,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 165 states have internal predecessors, (177), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2024-11-19 06:39:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2024-11-19 06:39:40,318 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 23 [2024-11-19 06:39:40,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:40,319 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2024-11-19 06:39:40,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2024-11-19 06:39:40,319 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2024-11-19 06:39:40,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 06:39:40,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:40,320 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] [2024-11-19 06:39:40,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:39:40,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:40,521 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:40,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:40,522 INFO L85 PathProgramCache]: Analyzing trace with hash -809998103, now seen corresponding path program 1 times [2024-11-19 06:39:40,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:40,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241987803] [2024-11-19 06:39:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:40,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:40,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241987803] [2024-11-19 06:39:40,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241987803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:40,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629923687] [2024-11-19 06:39:40,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:40,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:40,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:40,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:40,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:39:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:40,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 06:39:40,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:40,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:40,966 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-19 06:39:40,974 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-19 06:39:41,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-19 06:39:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:39:41,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:39:41,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629923687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:41,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:39:41,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2024-11-19 06:39:41,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544326522] [2024-11-19 06:39:41,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:41,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 06:39:41,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:41,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 06:39:41,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-19 06:39:41,039 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2024-11-19 06:39:41,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:41,328 INFO L93 Difference]: Finished difference Result 212 states and 259 transitions. [2024-11-19 06:39:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:39:41,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 23 [2024-11-19 06:39:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:41,331 INFO L225 Difference]: With dead ends: 212 [2024-11-19 06:39:41,331 INFO L226 Difference]: Without dead ends: 212 [2024-11-19 06:39:41,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-19 06:39:41,332 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 8 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:41,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1295 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:39:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-19 06:39:41,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2024-11-19 06:39:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 124 states have (on average 1.4193548387096775) internal successors, (176), 164 states have internal predecessors, (176), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2024-11-19 06:39:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 250 transitions. [2024-11-19 06:39:41,340 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 250 transitions. Word has length 23 [2024-11-19 06:39:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:41,340 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 250 transitions. [2024-11-19 06:39:41,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2024-11-19 06:39:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 250 transitions. [2024-11-19 06:39:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 06:39:41,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:41,342 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:41,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:39:41,545 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,SelfDestructingSolverStorable9 [2024-11-19 06:39:41,546 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:41,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1891975010, now seen corresponding path program 1 times [2024-11-19 06:39:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512297699] [2024-11-19 06:39:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:41,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:41,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512297699] [2024-11-19 06:39:41,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512297699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:41,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331542270] [2024-11-19 06:39:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:41,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:41,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:41,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:41,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:39:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:42,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 06:39:42,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:42,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:39:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:39:42,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331542270] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:39:42,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:39:42,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2024-11-19 06:39:42,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735635259] [2024-11-19 06:39:42,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:39:42,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 06:39:42,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:42,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 06:39:42,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-19 06:39:42,224 INFO L87 Difference]: Start difference. First operand 207 states and 250 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:42,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:42,575 INFO L93 Difference]: Finished difference Result 246 states and 303 transitions. [2024-11-19 06:39:42,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 06:39:42,576 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-19 06:39:42,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:42,578 INFO L225 Difference]: With dead ends: 246 [2024-11-19 06:39:42,578 INFO L226 Difference]: Without dead ends: 234 [2024-11-19 06:39:42,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2024-11-19 06:39:42,579 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 77 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:42,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1715 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:42,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-19 06:39:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 211. [2024-11-19 06:39:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 128 states have (on average 1.4140625) internal successors, (181), 168 states have internal predecessors, (181), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2024-11-19 06:39:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 255 transitions. [2024-11-19 06:39:42,587 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 255 transitions. Word has length 35 [2024-11-19 06:39:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:42,588 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 255 transitions. [2024-11-19 06:39:42,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 255 transitions. [2024-11-19 06:39:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 06:39:42,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:42,589 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:42,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 06:39:42,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:42,794 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:42,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1786152030, now seen corresponding path program 2 times [2024-11-19 06:39:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:42,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70670876] [2024-11-19 06:39:42,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:39:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:42,848 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:39:42,848 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:39:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 06:39:43,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:43,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70670876] [2024-11-19 06:39:43,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70670876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:43,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:43,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 06:39:43,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171047771] [2024-11-19 06:39:43,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:43,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 06:39:43,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:43,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 06:39:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 06:39:43,305 INFO L87 Difference]: Start difference. First operand 211 states and 255 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 06:39:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:43,511 INFO L93 Difference]: Finished difference Result 223 states and 264 transitions. [2024-11-19 06:39:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 06:39:43,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-19 06:39:43,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:43,513 INFO L225 Difference]: With dead ends: 223 [2024-11-19 06:39:43,513 INFO L226 Difference]: Without dead ends: 217 [2024-11-19 06:39:43,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:39:43,513 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 34 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:43,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 750 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:39:43,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-19 06:39:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2024-11-19 06:39:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 128 states have (on average 1.390625) internal successors, (178), 168 states have internal predecessors, (178), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2024-11-19 06:39:43,525 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 38 [2024-11-19 06:39:43,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:43,526 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2024-11-19 06:39:43,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 06:39:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2024-11-19 06:39:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-19 06:39:43,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:43,527 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:43,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:39:43,527 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:43,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:43,528 INFO L85 PathProgramCache]: Analyzing trace with hash -228737303, now seen corresponding path program 1 times [2024-11-19 06:39:43,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:43,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48454308] [2024-11-19 06:39:43,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:43,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 06:39:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48454308] [2024-11-19 06:39:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48454308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:43,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:39:43,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011851231] [2024-11-19 06:39:43,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:43,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:39:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:39:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:39:43,639 INFO L87 Difference]: Start difference. First operand 211 states and 248 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:43,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:43,690 INFO L93 Difference]: Finished difference Result 221 states and 260 transitions. [2024-11-19 06:39:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:39:43,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2024-11-19 06:39:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:43,692 INFO L225 Difference]: With dead ends: 221 [2024-11-19 06:39:43,692 INFO L226 Difference]: Without dead ends: 216 [2024-11-19 06:39:43,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:39:43,693 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 22 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:43,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 768 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 06:39:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-19 06:39:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2024-11-19 06:39:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 128 states have (on average 1.3828125) internal successors, (177), 168 states have internal predecessors, (177), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 247 transitions. [2024-11-19 06:39:43,704 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 247 transitions. Word has length 39 [2024-11-19 06:39:43,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:43,704 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 247 transitions. [2024-11-19 06:39:43,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:43,705 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 247 transitions. [2024-11-19 06:39:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 06:39:43,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:43,705 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:43,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 06:39:43,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:43,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:43,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1779518091, now seen corresponding path program 1 times [2024-11-19 06:39:43,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:43,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887139031] [2024-11-19 06:39:43,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:43,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 06:39:43,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:43,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887139031] [2024-11-19 06:39:43,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887139031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:43,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:43,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:39:43,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503604260] [2024-11-19 06:39:43,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:43,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:39:43,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:39:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:39:43,886 INFO L87 Difference]: Start difference. First operand 211 states and 247 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:44,063 INFO L93 Difference]: Finished difference Result 209 states and 245 transitions. [2024-11-19 06:39:44,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:39:44,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2024-11-19 06:39:44,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:44,065 INFO L225 Difference]: With dead ends: 209 [2024-11-19 06:39:44,065 INFO L226 Difference]: Without dead ends: 209 [2024-11-19 06:39:44,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:39:44,066 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 9 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:44,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 764 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-19 06:39:44,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-19 06:39:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 128 states have (on average 1.3671875) internal successors, (175), 166 states have internal predecessors, (175), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 245 transitions. [2024-11-19 06:39:44,072 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 245 transitions. Word has length 49 [2024-11-19 06:39:44,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:44,072 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 245 transitions. [2024-11-19 06:39:44,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 245 transitions. [2024-11-19 06:39:44,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 06:39:44,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:44,073 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:44,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 06:39:44,073 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:44,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1779518090, now seen corresponding path program 1 times [2024-11-19 06:39:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:44,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463163924] [2024-11-19 06:39:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:44,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 06:39:44,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:44,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463163924] [2024-11-19 06:39:44,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463163924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:44,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:39:44,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 06:39:44,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808194308] [2024-11-19 06:39:44,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:44,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:39:44,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:44,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:39:44,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:39:44,343 INFO L87 Difference]: Start difference. First operand 209 states and 245 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:44,509 INFO L93 Difference]: Finished difference Result 207 states and 243 transitions. [2024-11-19 06:39:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:39:44,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2024-11-19 06:39:44,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:44,510 INFO L225 Difference]: With dead ends: 207 [2024-11-19 06:39:44,510 INFO L226 Difference]: Without dead ends: 207 [2024-11-19 06:39:44,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:39:44,511 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 9 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:44,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 955 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:44,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-19 06:39:44,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-19 06:39:44,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 128 states have (on average 1.3515625) internal successors, (173), 164 states have internal predecessors, (173), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2024-11-19 06:39:44,517 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 49 [2024-11-19 06:39:44,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:44,517 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2024-11-19 06:39:44,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:44,517 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2024-11-19 06:39:44,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 06:39:44,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:44,518 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:44,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:39:44,518 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:44,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash 669514231, now seen corresponding path program 1 times [2024-11-19 06:39:44,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:44,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046904446] [2024-11-19 06:39:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:44,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:39:44,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:44,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046904446] [2024-11-19 06:39:44,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046904446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:44,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997935089] [2024-11-19 06:39:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:44,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:44,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:44,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:44,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 06:39:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:45,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 06:39:45,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:45,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:45,221 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-19 06:39:45,227 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-19 06:39:45,277 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 21 treesize of output 9 [2024-11-19 06:39:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 06:39:45,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:39:45,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997935089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:45,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:39:45,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2024-11-19 06:39:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466741304] [2024-11-19 06:39:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:45,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 06:39:45,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:45,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 06:39:45,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-19 06:39:45,293 INFO L87 Difference]: Start difference. First operand 207 states and 243 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:45,551 INFO L93 Difference]: Finished difference Result 211 states and 250 transitions. [2024-11-19 06:39:45,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:39:45,552 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-11-19 06:39:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:45,553 INFO L225 Difference]: With dead ends: 211 [2024-11-19 06:39:45,555 INFO L226 Difference]: Without dead ends: 211 [2024-11-19 06:39:45,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-19 06:39:45,556 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 9 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:45,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1262 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:39:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-19 06:39:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2024-11-19 06:39:45,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 128 states have (on average 1.34375) internal successors, (172), 163 states have internal predecessors, (172), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 242 transitions. [2024-11-19 06:39:45,569 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 242 transitions. Word has length 50 [2024-11-19 06:39:45,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:45,569 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 242 transitions. [2024-11-19 06:39:45,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 242 transitions. [2024-11-19 06:39:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 06:39:45,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:45,571 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:45,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 06:39:45,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 06:39:45,771 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:45,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:45,772 INFO L85 PathProgramCache]: Analyzing trace with hash 669514232, now seen corresponding path program 1 times [2024-11-19 06:39:45,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:45,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931003686] [2024-11-19 06:39:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:45,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 06:39:46,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931003686] [2024-11-19 06:39:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931003686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072497594] [2024-11-19 06:39:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:46,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:46,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:46,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:46,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 06:39:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:46,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-19 06:39:46,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:46,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:46,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:46,632 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 47 treesize of output 29 [2024-11-19 06:39:46,636 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 38 treesize of output 26 [2024-11-19 06:39:46,649 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 51 treesize of output 29 [2024-11-19 06:39:46,654 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 42 treesize of output 26 [2024-11-19 06:39:46,747 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 29 treesize of output 17 [2024-11-19 06:39:46,753 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 32 treesize of output 14 [2024-11-19 06:39:46,775 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 06:39:46,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:39:46,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072497594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:46,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:39:46,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2024-11-19 06:39:46,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698539571] [2024-11-19 06:39:46,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:46,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 06:39:46,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 06:39:46,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-19 06:39:46,777 INFO L87 Difference]: Start difference. First operand 206 states and 242 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:47,215 INFO L93 Difference]: Finished difference Result 210 states and 249 transitions. [2024-11-19 06:39:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 06:39:47,215 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-11-19 06:39:47,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:47,216 INFO L225 Difference]: With dead ends: 210 [2024-11-19 06:39:47,216 INFO L226 Difference]: Without dead ends: 210 [2024-11-19 06:39:47,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2024-11-19 06:39:47,217 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 14 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:47,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1742 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:39:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-19 06:39:47,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2024-11-19 06:39:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.3359375) internal successors, (171), 162 states have internal predecessors, (171), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 06:39:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 241 transitions. [2024-11-19 06:39:47,227 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 241 transitions. Word has length 50 [2024-11-19 06:39:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:47,227 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 241 transitions. [2024-11-19 06:39:47,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 06:39:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 241 transitions. [2024-11-19 06:39:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 06:39:47,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:47,228 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:47,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 06:39:47,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 06:39:47,433 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:47,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:47,433 INFO L85 PathProgramCache]: Analyzing trace with hash -300820591, now seen corresponding path program 1 times [2024-11-19 06:39:47,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:47,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229562679] [2024-11-19 06:39:47,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:47,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 06:39:48,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229562679] [2024-11-19 06:39:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229562679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494670330] [2024-11-19 06:39:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:48,270 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:48,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 06:39:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:48,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 06:39:48,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:48,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:48,652 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 35 treesize of output 17 [2024-11-19 06:39:48,882 INFO L349 Elim1Store]: treesize reduction 46, result has 17.9 percent of original size [2024-11-19 06:39:48,882 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 4 case distinctions, treesize of input 22 treesize of output 21 [2024-11-19 06:39:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 06:39:48,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:39:48,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494670330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:39:48,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:39:48,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 24 [2024-11-19 06:39:48,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869732711] [2024-11-19 06:39:48,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:39:48,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 06:39:48,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:48,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 06:39:48,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2024-11-19 06:39:48,911 INFO L87 Difference]: Start difference. First operand 205 states and 241 transitions. Second operand has 14 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 06:39:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:39:50,878 INFO L93 Difference]: Finished difference Result 335 states and 419 transitions. [2024-11-19 06:39:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 06:39:50,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2024-11-19 06:39:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:39:50,881 INFO L225 Difference]: With dead ends: 335 [2024-11-19 06:39:50,881 INFO L226 Difference]: Without dead ends: 335 [2024-11-19 06:39:50,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2024-11-19 06:39:50,882 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 366 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 179 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 06:39:50,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 791 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1673 Invalid, 7 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 06:39:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-19 06:39:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 297. [2024-11-19 06:39:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 184 states have (on average 1.4293478260869565) internal successors, (263), 222 states have internal predecessors, (263), 67 states have call successors, (67), 12 states have call predecessors, (67), 14 states have return successors, (72), 68 states have call predecessors, (72), 67 states have call successors, (72) [2024-11-19 06:39:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 402 transitions. [2024-11-19 06:39:50,919 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 402 transitions. Word has length 57 [2024-11-19 06:39:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:39:50,920 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 402 transitions. [2024-11-19 06:39:50,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 06:39:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 402 transitions. [2024-11-19 06:39:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 06:39:50,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:39:50,921 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:39:50,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 06:39:51,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 06:39:51,128 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:39:51,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:39:51,129 INFO L85 PathProgramCache]: Analyzing trace with hash -300820590, now seen corresponding path program 1 times [2024-11-19 06:39:51,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:39:51,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994618726] [2024-11-19 06:39:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:51,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:39:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 06:39:52,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:39:52,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994618726] [2024-11-19 06:39:52,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994618726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:52,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911386809] [2024-11-19 06:39:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:39:52,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:39:52,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:39:52,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:39:52,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 06:39:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:39:52,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-19 06:39:52,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:39:52,944 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 [2024-11-19 06:39:52,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-19 06:39:52,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:39:52,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-19 06:39:53,009 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 06:39:53,009 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 [2024-11-19 06:39:53,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:53,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 06:39:53,419 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 35 treesize of output 17 [2024-11-19 06:39:53,423 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 19 treesize of output 7 [2024-11-19 06:39:57,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:39:57,682 INFO L349 Elim1Store]: treesize reduction 25, result has 26.5 percent of original size [2024-11-19 06:39:57,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 13 [2024-11-19 06:39:57,690 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 06:39:57,690 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 [2024-11-19 06:39:57,923 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 06:39:57,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:39:58,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911386809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:39:58,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 06:39:58,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 37 [2024-11-19 06:39:58,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795932489] [2024-11-19 06:39:58,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 06:39:58,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-19 06:39:58,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:39:58,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-19 06:39:58,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1757, Unknown=1, NotChecked=0, Total=1892 [2024-11-19 06:39:58,370 INFO L87 Difference]: Start difference. First operand 297 states and 402 transitions. Second operand has 38 states, 34 states have (on average 2.7058823529411766) internal successors, (92), 31 states have internal predecessors, (92), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 06:40:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:02,691 INFO L93 Difference]: Finished difference Result 314 states and 414 transitions. [2024-11-19 06:40:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 06:40:02,692 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 34 states have (on average 2.7058823529411766) internal successors, (92), 31 states have internal predecessors, (92), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2024-11-19 06:40:02,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:02,694 INFO L225 Difference]: With dead ends: 314 [2024-11-19 06:40:02,694 INFO L226 Difference]: Without dead ends: 314 [2024-11-19 06:40:02,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=337, Invalid=3202, Unknown=1, NotChecked=0, Total=3540 [2024-11-19 06:40:02,696 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 303 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 169 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:02,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1828 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 3127 Invalid, 8 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 06:40:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-19 06:40:02,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2024-11-19 06:40:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 188 states have (on average 1.4148936170212767) internal successors, (266), 226 states have internal predecessors, (266), 67 states have call successors, (67), 13 states have call predecessors, (67), 15 states have return successors, (72), 68 states have call predecessors, (72), 67 states have call successors, (72) [2024-11-19 06:40:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 405 transitions. [2024-11-19 06:40:02,707 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 405 transitions. Word has length 57 [2024-11-19 06:40:02,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:02,707 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 405 transitions. [2024-11-19 06:40:02,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 34 states have (on average 2.7058823529411766) internal successors, (92), 31 states have internal predecessors, (92), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 06:40:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 405 transitions. [2024-11-19 06:40:02,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 06:40:02,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:02,708 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:02,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 06:40:02,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:02,909 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:02,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1037694124, now seen corresponding path program 1 times [2024-11-19 06:40:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:02,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745075982] [2024-11-19 06:40:02,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:02,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 06:40:03,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:03,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745075982] [2024-11-19 06:40:03,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745075982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:40:03,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:40:03,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 06:40:03,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760733974] [2024-11-19 06:40:03,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:40:03,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:40:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:03,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:40:03,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:40:03,142 INFO L87 Difference]: Start difference. First operand 302 states and 405 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 06:40:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:03,484 INFO L93 Difference]: Finished difference Result 313 states and 413 transitions. [2024-11-19 06:40:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:40:03,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2024-11-19 06:40:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:03,486 INFO L225 Difference]: With dead ends: 313 [2024-11-19 06:40:03,486 INFO L226 Difference]: Without dead ends: 313 [2024-11-19 06:40:03,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 06:40:03,487 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 53 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:03,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 865 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:40:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-19 06:40:03,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2024-11-19 06:40:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 192 states have (on average 1.4114583333333333) internal successors, (271), 230 states have internal predecessors, (271), 67 states have call successors, (67), 14 states have call predecessors, (67), 16 states have return successors, (72), 68 states have call predecessors, (72), 67 states have call successors, (72) [2024-11-19 06:40:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 410 transitions. [2024-11-19 06:40:03,501 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 410 transitions. Word has length 64 [2024-11-19 06:40:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:03,502 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 410 transitions. [2024-11-19 06:40:03,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 06:40:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 410 transitions. [2024-11-19 06:40:03,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 06:40:03,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:03,503 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:03,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 06:40:03,503 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:03,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:03,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1037694123, now seen corresponding path program 1 times [2024-11-19 06:40:03,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:03,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817733008] [2024-11-19 06:40:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:03,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 06:40:03,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:03,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817733008] [2024-11-19 06:40:03,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817733008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:40:03,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:40:03,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 06:40:03,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375882411] [2024-11-19 06:40:03,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:40:03,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 06:40:03,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:03,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 06:40:03,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 06:40:03,992 INFO L87 Difference]: Start difference. First operand 307 states and 410 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 06:40:04,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:04,451 INFO L93 Difference]: Finished difference Result 314 states and 413 transitions. [2024-11-19 06:40:04,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 06:40:04,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2024-11-19 06:40:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:04,453 INFO L225 Difference]: With dead ends: 314 [2024-11-19 06:40:04,453 INFO L226 Difference]: Without dead ends: 314 [2024-11-19 06:40:04,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:40:04,454 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 59 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:04,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1264 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:40:04,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-19 06:40:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 307. [2024-11-19 06:40:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 192 states have (on average 1.40625) internal successors, (270), 230 states have internal predecessors, (270), 67 states have call successors, (67), 14 states have call predecessors, (67), 16 states have return successors, (72), 68 states have call predecessors, (72), 67 states have call successors, (72) [2024-11-19 06:40:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 409 transitions. [2024-11-19 06:40:04,463 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 409 transitions. Word has length 64 [2024-11-19 06:40:04,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:04,464 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 409 transitions. [2024-11-19 06:40:04,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 06:40:04,464 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 409 transitions. [2024-11-19 06:40:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 06:40:04,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:04,465 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:04,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 06:40:04,465 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:04,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:04,466 INFO L85 PathProgramCache]: Analyzing trace with hash 121872637, now seen corresponding path program 1 times [2024-11-19 06:40:04,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:04,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929939149] [2024-11-19 06:40:04,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:04,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 06:40:04,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:04,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929939149] [2024-11-19 06:40:04,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929939149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:40:04,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471184454] [2024-11-19 06:40:04,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:04,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:04,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:40:04,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:40:04,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 06:40:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:05,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 06:40:05,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:40:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 06:40:05,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:40:05,131 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-19 06:40:05,131 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 12 treesize of output 11 [2024-11-19 06:40:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 06:40:05,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471184454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:40:05,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:40:05,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 9 [2024-11-19 06:40:05,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299203340] [2024-11-19 06:40:05,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:40:05,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 06:40:05,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:05,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 06:40:05,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:40:05,154 INFO L87 Difference]: Start difference. First operand 307 states and 409 transitions. Second operand has 10 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:40:05,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:05,702 INFO L93 Difference]: Finished difference Result 324 states and 426 transitions. [2024-11-19 06:40:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 06:40:05,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2024-11-19 06:40:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:05,704 INFO L225 Difference]: With dead ends: 324 [2024-11-19 06:40:05,704 INFO L226 Difference]: Without dead ends: 324 [2024-11-19 06:40:05,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-19 06:40:05,705 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 102 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:05,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1271 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 06:40:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-19 06:40:05,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 308. [2024-11-19 06:40:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 194 states have (on average 1.402061855670103) internal successors, (272), 230 states have internal predecessors, (272), 67 states have call successors, (67), 15 states have call predecessors, (67), 16 states have return successors, (72), 68 states have call predecessors, (72), 67 states have call successors, (72) [2024-11-19 06:40:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 411 transitions. [2024-11-19 06:40:05,714 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 411 transitions. Word has length 74 [2024-11-19 06:40:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:05,714 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 411 transitions. [2024-11-19 06:40:05,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:40:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 411 transitions. [2024-11-19 06:40:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 06:40:05,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:05,715 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:05,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 06:40:05,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 06:40:05,926 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:05,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:05,926 INFO L85 PathProgramCache]: Analyzing trace with hash 121872638, now seen corresponding path program 1 times [2024-11-19 06:40:05,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:05,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21712410] [2024-11-19 06:40:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:05,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 06:40:06,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:06,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21712410] [2024-11-19 06:40:06,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21712410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:40:06,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729566179] [2024-11-19 06:40:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:06,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:06,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:40:06,524 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:40:06,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 06:40:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:06,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-19 06:40:06,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:40:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 06:40:07,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:40:07,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-19 06:40:07,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:40:07,198 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 15 treesize of output 19 [2024-11-19 06:40:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 06:40:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729566179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:40:07,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:40:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2024-11-19 06:40:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522593506] [2024-11-19 06:40:07,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:40:07,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 06:40:07,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:07,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 06:40:07,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-11-19 06:40:07,297 INFO L87 Difference]: Start difference. First operand 308 states and 411 transitions. Second operand has 25 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 18 states have internal predecessors, (75), 8 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 06:40:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:08,611 INFO L93 Difference]: Finished difference Result 449 states and 590 transitions. [2024-11-19 06:40:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 06:40:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 18 states have internal predecessors, (75), 8 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-19 06:40:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:08,614 INFO L225 Difference]: With dead ends: 449 [2024-11-19 06:40:08,614 INFO L226 Difference]: Without dead ends: 449 [2024-11-19 06:40:08,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 132 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=771, Unknown=0, NotChecked=0, Total=870 [2024-11-19 06:40:08,615 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 309 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:08,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 3822 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 06:40:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-19 06:40:08,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 403. [2024-11-19 06:40:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 253 states have (on average 1.4426877470355732) internal successors, (365), 292 states have internal predecessors, (365), 99 states have call successors, (99), 18 states have call predecessors, (99), 20 states have return successors, (104), 101 states have call predecessors, (104), 99 states have call successors, (104) [2024-11-19 06:40:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 568 transitions. [2024-11-19 06:40:08,629 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 568 transitions. Word has length 74 [2024-11-19 06:40:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:08,629 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 568 transitions. [2024-11-19 06:40:08,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 18 states have internal predecessors, (75), 8 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 06:40:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 568 transitions. [2024-11-19 06:40:08,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-19 06:40:08,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:08,630 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:08,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 06:40:08,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:08,835 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:08,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:08,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1089531799, now seen corresponding path program 2 times [2024-11-19 06:40:08,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344996164] [2024-11-19 06:40:08,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:40:08,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:08,911 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:40:08,911 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:40:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 06:40:09,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:09,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344996164] [2024-11-19 06:40:09,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344996164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:40:09,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205677286] [2024-11-19 06:40:09,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:40:09,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:40:09,481 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:40:09,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 06:40:09,839 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:40:09,839 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:40:09,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-19 06:40:09,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:40:10,284 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 06:40:10,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:40:10,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-19 06:40:10,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 06:40:10,532 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 15 treesize of output 19 [2024-11-19 06:40:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 06:40:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205677286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:40:10,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:40:10,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 14] total 41 [2024-11-19 06:40:10,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843766212] [2024-11-19 06:40:10,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:40:10,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 06:40:10,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:10,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 06:40:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1579, Unknown=0, NotChecked=0, Total=1722 [2024-11-19 06:40:10,733 INFO L87 Difference]: Start difference. First operand 403 states and 568 transitions. Second operand has 42 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 30 states have internal predecessors, (140), 13 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-19 06:40:14,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-19 06:40:16,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:16,866 INFO L93 Difference]: Finished difference Result 451 states and 588 transitions. [2024-11-19 06:40:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 06:40:16,867 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 30 states have internal predecessors, (140), 13 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) Word has length 81 [2024-11-19 06:40:16,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:16,869 INFO L225 Difference]: With dead ends: 451 [2024-11-19 06:40:16,869 INFO L226 Difference]: Without dead ends: 451 [2024-11-19 06:40:16,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 132 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=237, Invalid=2519, Unknown=0, NotChecked=0, Total=2756 [2024-11-19 06:40:16,872 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 519 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 177 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 3020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:16,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 3068 Invalid, 3020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2842 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-19 06:40:16,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-19 06:40:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 413. [2024-11-19 06:40:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 261 states have (on average 1.4252873563218391) internal successors, (372), 300 states have internal predecessors, (372), 99 states have call successors, (99), 20 states have call predecessors, (99), 22 states have return successors, (104), 101 states have call predecessors, (104), 99 states have call successors, (104) [2024-11-19 06:40:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 575 transitions. [2024-11-19 06:40:16,886 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 575 transitions. Word has length 81 [2024-11-19 06:40:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:16,886 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 575 transitions. [2024-11-19 06:40:16,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 30 states have internal predecessors, (140), 13 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-19 06:40:16,887 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 575 transitions. [2024-11-19 06:40:16,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 06:40:16,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:16,887 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:16,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 06:40:17,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-19 06:40:17,089 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting DUPFFexgcdErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:17,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:17,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1021119326, now seen corresponding path program 1 times [2024-11-19 06:40:17,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:17,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039290304] [2024-11-19 06:40:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:17,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-19 06:40:17,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:17,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039290304] [2024-11-19 06:40:17,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039290304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:40:17,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:40:17,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:40:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737546064] [2024-11-19 06:40:17,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:40:17,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:40:17,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:17,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:40:17,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:40:17,187 INFO L87 Difference]: Start difference. First operand 413 states and 575 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 06:40:17,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:17,198 INFO L93 Difference]: Finished difference Result 416 states and 575 transitions. [2024-11-19 06:40:17,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:40:17,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2024-11-19 06:40:17,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:17,200 INFO L225 Difference]: With dead ends: 416 [2024-11-19 06:40:17,200 INFO L226 Difference]: Without dead ends: 413 [2024-11-19 06:40:17,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:40:17,201 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:17,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 399 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 06:40:17,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-19 06:40:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2024-11-19 06:40:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 261 states have (on average 1.4137931034482758) internal successors, (369), 300 states have internal predecessors, (369), 99 states have call successors, (99), 20 states have call predecessors, (99), 22 states have return successors, (104), 101 states have call predecessors, (104), 99 states have call successors, (104) [2024-11-19 06:40:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 572 transitions. [2024-11-19 06:40:17,216 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 572 transitions. Word has length 80 [2024-11-19 06:40:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:17,217 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 572 transitions. [2024-11-19 06:40:17,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 06:40:17,217 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 572 transitions. [2024-11-19 06:40:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-19 06:40:17,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:17,218 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:17,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 06:40:17,218 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting DUPFFexgcdErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:17,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:17,218 INFO L85 PathProgramCache]: Analyzing trace with hash -56832772, now seen corresponding path program 1 times [2024-11-19 06:40:17,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:17,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004637816] [2024-11-19 06:40:17,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:17,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-19 06:40:17,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:17,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004637816] [2024-11-19 06:40:17,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004637816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:40:17,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064219283] [2024-11-19 06:40:17,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:40:17,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:17,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:40:17,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:40:17,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 06:40:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:40:18,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-19 06:40:18,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:40:18,084 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 [2024-11-19 06:40:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-19 06:40:18,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:40:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064219283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:40:18,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:40:18,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2024-11-19 06:40:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279266956] [2024-11-19 06:40:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:40:18,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 06:40:18,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:18,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 06:40:18,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-19 06:40:18,387 INFO L87 Difference]: Start difference. First operand 413 states and 572 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:40:18,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:18,641 INFO L93 Difference]: Finished difference Result 356 states and 452 transitions. [2024-11-19 06:40:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 06:40:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 87 [2024-11-19 06:40:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:18,643 INFO L225 Difference]: With dead ends: 356 [2024-11-19 06:40:18,643 INFO L226 Difference]: Without dead ends: 345 [2024-11-19 06:40:18,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 73 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-19 06:40:18,644 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 57 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:18,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1035 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 06:40:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-19 06:40:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 339. [2024-11-19 06:40:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 216 states have (on average 1.3472222222222223) internal successors, (291), 253 states have internal predecessors, (291), 70 states have call successors, (70), 19 states have call predecessors, (70), 22 states have return successors, (75), 72 states have call predecessors, (75), 70 states have call successors, (75) [2024-11-19 06:40:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 436 transitions. [2024-11-19 06:40:18,658 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 436 transitions. Word has length 87 [2024-11-19 06:40:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:18,658 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 436 transitions. [2024-11-19 06:40:18,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:40:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 436 transitions. [2024-11-19 06:40:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-19 06:40:18,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:40:18,659 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:18,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 06:40:18,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-19 06:40:18,860 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2024-11-19 06:40:18,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:40:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash -834118382, now seen corresponding path program 3 times [2024-11-19 06:40:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:40:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737245718] [2024-11-19 06:40:18,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 06:40:18,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:40:18,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 06:40:18,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:40:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 39 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 06:40:20,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:40:20,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737245718] [2024-11-19 06:40:20,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737245718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:40:20,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666274641] [2024-11-19 06:40:20,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 06:40:20,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:40:20,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:40:20,313 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:40:20,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 06:40:20,754 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 06:40:20,754 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:40:20,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 06:40:20,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:40:20,942 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-19 06:40:20,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:40:21,232 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-19 06:40:21,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666274641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:40:21,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:40:21,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 8] total 28 [2024-11-19 06:40:21,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744229803] [2024-11-19 06:40:21,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:40:21,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 06:40:21,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:40:21,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 06:40:21,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2024-11-19 06:40:21,234 INFO L87 Difference]: Start difference. First operand 339 states and 436 transitions. Second operand has 28 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 27 states have internal predecessors, (96), 2 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 06:40:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:40:22,091 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2024-11-19 06:40:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 06:40:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 27 states have internal predecessors, (96), 2 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2024-11-19 06:40:22,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:40:22,093 INFO L225 Difference]: With dead ends: 76 [2024-11-19 06:40:22,093 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 06:40:22,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=490, Invalid=1766, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 06:40:22,094 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 113 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:40:22,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 414 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:40:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 06:40:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 06:40:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:40:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 06:40:22,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2024-11-19 06:40:22,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:40:22,095 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 06:40:22,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 27 states have internal predecessors, (96), 2 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 06:40:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 06:40:22,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 06:40:22,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 55 remaining) [2024-11-19 06:40:22,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2024-11-19 06:40:22,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2024-11-19 06:40:22,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 55 remaining) [2024-11-19 06:40:22,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFnewErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2024-11-19 06:40:22,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2024-11-19 06:40:22,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 55 remaining) [2024-11-19 06:40:22,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location DUPFFexgcdErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2024-11-19 06:40:22,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2024-11-19 06:40:22,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 55 remaining) [2024-11-19 06:40:22,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 06:40:22,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 06:40:22,310 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:40:22,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 06:40:22,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:40:22 BoogieIcfgContainer [2024-11-19 06:40:22,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 06:40:22,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 06:40:22,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 06:40:22,317 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 06:40:22,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:34" (3/4) ... [2024-11-19 06:40:22,320 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 06:40:22,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFnew [2024-11-19 06:40:22,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFexgcd [2024-11-19 06:40:22,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFcopy [2024-11-19 06:40:22,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFshift_add [2024-11-19 06:40:22,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFswap [2024-11-19 06:40:22,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFdeg [2024-11-19 06:40:22,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DUPFFfree [2024-11-19 06:40:22,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure FFmul [2024-11-19 06:40:22,340 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-19 06:40:22,341 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-19 06:40:22,341 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-19 06:40:22,342 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 06:40:22,470 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 06:40:22,470 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 06:40:22,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 06:40:22,471 INFO L158 Benchmark]: Toolchain (without parser) took 49110.03ms. Allocated memory was 169.9MB in the beginning and 371.2MB in the end (delta: 201.3MB). Free memory was 139.8MB in the beginning and 155.0MB in the end (delta: -15.2MB). Peak memory consumption was 185.7MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,471 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 06:40:22,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.11ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 108.1MB in the end (delta: 31.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.69ms. Allocated memory is still 169.9MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,472 INFO L158 Benchmark]: Boogie Preprocessor took 81.94ms. Allocated memory is still 169.9MB. Free memory was 106.0MB in the beginning and 101.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,472 INFO L158 Benchmark]: RCFGBuilder took 811.40ms. Allocated memory is still 169.9MB. Free memory was 101.8MB in the beginning and 64.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,472 INFO L158 Benchmark]: TraceAbstraction took 47349.42ms. Allocated memory was 169.9MB in the beginning and 371.2MB in the end (delta: 201.3MB). Free memory was 63.0MB in the beginning and 163.3MB in the end (delta: -100.4MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,472 INFO L158 Benchmark]: Witness Printer took 154.24ms. Allocated memory is still 371.2MB. Free memory was 163.3MB in the beginning and 155.0MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 06:40:22,481 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.11ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 108.1MB in the end (delta: 31.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.69ms. Allocated memory is still 169.9MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.94ms. Allocated memory is still 169.9MB. Free memory was 106.0MB in the beginning and 101.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 811.40ms. Allocated memory is still 169.9MB. Free memory was 101.8MB in the beginning and 64.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 47349.42ms. Allocated memory was 169.9MB in the beginning and 371.2MB in the end (delta: 201.3MB). Free memory was 63.0MB in the beginning and 163.3MB in the end (delta: -100.4MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. * Witness Printer took 154.24ms. Allocated memory is still 371.2MB. Free memory was 163.3MB in the beginning and 155.0MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 964]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 192 locations, 55 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 27, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 mSolverCounterUnknown, 2236 SdHoareTripleChecker+Valid, 16.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2194 mSDsluCounter, 31506 SdHoareTripleChecker+Invalid, 14.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26402 mSDsCounter, 815 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15663 IncrementalHoareTripleChecker+Invalid, 16494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 815 mSolverCounterUnsat, 5104 mSDtfsCounter, 15663 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1403 GetRequests, 954 SyntacticMatches, 13 SemanticMatches, 436 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=413occurred in iteration=24, InterpolantAutomatonStates: 281, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 231 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 1891 NumberOfCodeBlocks, 1835 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2202 ConstructedInterpolants, 54 QuantifiedInterpolants, 11906 SizeOfPredicates, 77 NumberOfNonLiveVariables, 6251 ConjunctsInSsa, 414 ConjunctsInUnsatCore, 44 InterpolantComputations, 21 PerfectInterpolantSequences, 1268/1599 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 55 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 06:40:22,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE