./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.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/uthash-2.0.2/uthash_BER_nondet_test4-1.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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 08:57:05,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 08:57:05,362 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 08:57:05,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 08:57:05,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 08:57:05,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 08:57:05,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 08:57:05,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 08:57:05,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 08:57:05,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 08:57:05,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 08:57:05,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 08:57:05,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 08:57:05,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 08:57:05,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 08:57:05,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 08:57:05,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 08:57:05,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 08:57:05,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 08:57:05,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 08:57:05,415 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 08:57:05,415 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 08:57:05,418 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 08:57:05,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 08:57:05,425 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 08:57:05,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 08:57:05,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 08:57:05,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 08:57:05,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 08:57:05,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 08:57:05,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 08:57:05,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 08:57:05,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 08:57:05,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 08:57:05,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 08:57:05,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 08:57:05,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 08:57:05,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 08:57:05,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 08:57:05,429 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 08:57:05,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 08:57:05,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 08:57:05,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-11-19 08:57:05,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 08:57:05,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 08:57:05,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 08:57:05,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 08:57:05,693 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 08:57:05,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2024-11-19 08:57:07,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 08:57:07,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 08:57:07,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2024-11-19 08:57:07,554 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1289649ca/4519cec8b4964db184abbbebf0d75848/FLAG2e7176694 [2024-11-19 08:57:07,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1289649ca/4519cec8b4964db184abbbebf0d75848 [2024-11-19 08:57:07,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 08:57:07,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 08:57:07,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 08:57:07,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 08:57:07,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 08:57:07,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:57:07" (1/1) ... [2024-11-19 08:57:07,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d2f657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:07, skipping insertion in model container [2024-11-19 08:57:07,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:57:07" (1/1) ... [2024-11-19 08:57:07,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 08:57:08,283 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 08:57:08,324 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 08:57:08,328 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 08:57:08,334 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 08:57:08,342 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 08:57:08,385 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 08:57:08,388 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 08:57:08,390 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 08:57:08,397 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 08:57:08,407 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 08:57:08,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 08:57:08,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 08:57:08,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 08:57:08,581 INFO L204 MainTranslator]: Completed translation [2024-11-19 08:57:08,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08 WrapperNode [2024-11-19 08:57:08,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 08:57:08,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 08:57:08,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 08:57:08,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 08:57:08,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,688 INFO L138 Inliner]: procedures = 176, calls = 326, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1563 [2024-11-19 08:57:08,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 08:57:08,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 08:57:08,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 08:57:08,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 08:57:08,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,724 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,866 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-11-19 08:57:08,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 08:57:08,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 08:57:08,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 08:57:08,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 08:57:08,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (1/1) ... [2024-11-19 08:57:08,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 08:57:08,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:57:09,005 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 08:57:09,008 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 08:57:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 08:57:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 08:57:09,056 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 08:57:09,056 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 08:57:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 08:57:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 08:57:09,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 08:57:09,307 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 08:57:09,310 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 08:57:09,315 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-19 08:57:09,362 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-19 08:57:11,806 INFO L? ?]: Removed 1493 outVars from TransFormulas that were not future-live. [2024-11-19 08:57:11,807 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 08:57:11,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 08:57:11,859 INFO L316 CfgBuilder]: Removed 60 assume(true) statements. [2024-11-19 08:57:11,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:57:11 BoogieIcfgContainer [2024-11-19 08:57:11,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 08:57:11,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 08:57:11,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 08:57:11,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 08:57:11,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:57:07" (1/3) ... [2024-11-19 08:57:11,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cc90a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:57:11, skipping insertion in model container [2024-11-19 08:57:11,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:57:08" (2/3) ... [2024-11-19 08:57:11,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cc90a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:57:11, skipping insertion in model container [2024-11-19 08:57:11,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:57:11" (3/3) ... [2024-11-19 08:57:11,876 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-1.i [2024-11-19 08:57:11,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 08:57:11,890 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 628 error locations. [2024-11-19 08:57:11,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 08:57:11,981 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;@6b66176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 08:57:11,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 628 error locations. [2024-11-19 08:57:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 1432 states, 802 states have (on average 2.0773067331670823) internal successors, (1666), 1424 states have internal predecessors, (1666), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 08:57:11,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-19 08:57:11,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:11,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-19 08:57:12,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr627ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:12,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:12,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1482245, now seen corresponding path program 1 times [2024-11-19 08:57:12,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:12,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330564682] [2024-11-19 08:57:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:12,206 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 08:57:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330564682] [2024-11-19 08:57:12,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330564682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:12,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:12,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 08:57:12,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601739008] [2024-11-19 08:57:12,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:12,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 08:57:12,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 08:57:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 08:57:12,265 INFO L87 Difference]: Start difference. First operand has 1432 states, 802 states have (on average 2.0773067331670823) internal successors, (1666), 1424 states have internal predecessors, (1666), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:13,195 INFO L93 Difference]: Finished difference Result 1437 states and 1617 transitions. [2024-11-19 08:57:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 08:57:13,198 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-19 08:57:13,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:13,215 INFO L225 Difference]: With dead ends: 1437 [2024-11-19 08:57:13,215 INFO L226 Difference]: Without dead ends: 1433 [2024-11-19 08:57:13,217 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 08:57:13,220 INFO L432 NwaCegarLoop]: 1582 mSDtfsCounter, 26 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:13,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2550 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 08:57:13,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2024-11-19 08:57:13,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1424. [2024-11-19 08:57:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 805 states have (on average 1.9838509316770185) internal successors, (1597), 1416 states have internal predecessors, (1597), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 08:57:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1609 transitions. [2024-11-19 08:57:13,315 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1609 transitions. Word has length 4 [2024-11-19 08:57:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:13,315 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 1609 transitions. [2024-11-19 08:57:13,316 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), 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 08:57:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1609 transitions. [2024-11-19 08:57:13,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 08:57:13,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:13,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 08:57:13,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 08:57:13,317 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:13,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1422076526, now seen corresponding path program 1 times [2024-11-19 08:57:13,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:13,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8246913] [2024-11-19 08:57:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:13,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:13,438 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 08:57:13,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:13,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8246913] [2024-11-19 08:57:13,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8246913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:13,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:13,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 08:57:13,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611977442] [2024-11-19 08:57:13,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:13,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 08:57:13,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:13,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 08:57:13,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 08:57:13,442 INFO L87 Difference]: Start difference. First operand 1424 states and 1609 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:14,345 INFO L93 Difference]: Finished difference Result 1330 states and 1513 transitions. [2024-11-19 08:57:14,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 08:57:14,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-19 08:57:14,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:14,352 INFO L225 Difference]: With dead ends: 1330 [2024-11-19 08:57:14,352 INFO L226 Difference]: Without dead ends: 1330 [2024-11-19 08:57:14,355 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 08:57:14,356 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 1353 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:14,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 889 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 08:57:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2024-11-19 08:57:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2024-11-19 08:57:14,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 805 states have (on average 1.8645962732919255) internal successors, (1501), 1322 states have internal predecessors, (1501), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 08:57:14,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1513 transitions. [2024-11-19 08:57:14,389 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1513 transitions. Word has length 6 [2024-11-19 08:57:14,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:14,390 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1513 transitions. [2024-11-19 08:57:14,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1513 transitions. [2024-11-19 08:57:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 08:57:14,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:14,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 08:57:14,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 08:57:14,393 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:14,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:14,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1422076527, now seen corresponding path program 1 times [2024-11-19 08:57:14,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:14,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566748411] [2024-11-19 08:57:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:14,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:14,536 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 08:57:14,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:14,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566748411] [2024-11-19 08:57:14,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566748411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:14,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:14,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 08:57:14,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560753471] [2024-11-19 08:57:14,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:14,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 08:57:14,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 08:57:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 08:57:14,541 INFO L87 Difference]: Start difference. First operand 1330 states and 1513 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:15,484 INFO L93 Difference]: Finished difference Result 1746 states and 2007 transitions. [2024-11-19 08:57:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 08:57:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-19 08:57:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:15,491 INFO L225 Difference]: With dead ends: 1746 [2024-11-19 08:57:15,491 INFO L226 Difference]: Without dead ends: 1746 [2024-11-19 08:57:15,492 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 08:57:15,493 INFO L432 NwaCegarLoop]: 1248 mSDtfsCounter, 820 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:15,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1871 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 08:57:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-11-19 08:57:15,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1593. [2024-11-19 08:57:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1078 states have (on average 1.8320964749536177) internal successors, (1975), 1585 states have internal predecessors, (1975), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 08:57:15,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 1987 transitions. [2024-11-19 08:57:15,526 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 1987 transitions. Word has length 6 [2024-11-19 08:57:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:15,526 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 1987 transitions. [2024-11-19 08:57:15,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 1987 transitions. [2024-11-19 08:57:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 08:57:15,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:15,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:15,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 08:57:15,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:15,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1137087712, now seen corresponding path program 1 times [2024-11-19 08:57:15,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:15,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494724252] [2024-11-19 08:57:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:15,619 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 08:57:15,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:15,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494724252] [2024-11-19 08:57:15,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494724252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:15,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:15,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 08:57:15,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869498676] [2024-11-19 08:57:15,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:15,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 08:57:15,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 08:57:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 08:57:15,624 INFO L87 Difference]: Start difference. First operand 1593 states and 1987 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 08:57:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:15,971 INFO L93 Difference]: Finished difference Result 2646 states and 3337 transitions. [2024-11-19 08:57:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 08:57:15,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-19 08:57:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:15,982 INFO L225 Difference]: With dead ends: 2646 [2024-11-19 08:57:15,983 INFO L226 Difference]: Without dead ends: 2644 [2024-11-19 08:57:15,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 08:57:15,984 INFO L432 NwaCegarLoop]: 1481 mSDtfsCounter, 997 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 4208 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:15,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 4208 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 08:57:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2024-11-19 08:57:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2345. [2024-11-19 08:57:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 1830 states have (on average 1.812568306010929) internal successors, (3317), 2334 states have internal predecessors, (3317), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3335 transitions. [2024-11-19 08:57:16,051 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3335 transitions. Word has length 7 [2024-11-19 08:57:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:16,051 INFO L471 AbstractCegarLoop]: Abstraction has 2345 states and 3335 transitions. [2024-11-19 08:57:16,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 08:57:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3335 transitions. [2024-11-19 08:57:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 08:57:16,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:16,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:16,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 08:57:16,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:16,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash 242137368, now seen corresponding path program 1 times [2024-11-19 08:57:16,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:16,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364129521] [2024-11-19 08:57:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:16,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:16,167 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 08:57:16,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:16,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364129521] [2024-11-19 08:57:16,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364129521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:16,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:16,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 08:57:16,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831978201] [2024-11-19 08:57:16,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:16,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 08:57:16,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:16,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 08:57:16,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 08:57:16,169 INFO L87 Difference]: Start difference. First operand 2345 states and 3335 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 08:57:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:17,267 INFO L93 Difference]: Finished difference Result 2420 states and 3441 transitions. [2024-11-19 08:57:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 08:57:17,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-19 08:57:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:17,276 INFO L225 Difference]: With dead ends: 2420 [2024-11-19 08:57:17,276 INFO L226 Difference]: Without dead ends: 2420 [2024-11-19 08:57:17,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 08:57:17,277 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 1621 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:17,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 1572 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 08:57:17,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2024-11-19 08:57:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2322. [2024-11-19 08:57:17,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 1830 states have (on average 1.787431693989071) internal successors, (3271), 2311 states have internal predecessors, (3271), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3289 transitions. [2024-11-19 08:57:17,317 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3289 transitions. Word has length 12 [2024-11-19 08:57:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:17,318 INFO L471 AbstractCegarLoop]: Abstraction has 2322 states and 3289 transitions. [2024-11-19 08:57:17,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 08:57:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3289 transitions. [2024-11-19 08:57:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 08:57:17,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:17,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:17,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 08:57:17,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:17,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 242137369, now seen corresponding path program 1 times [2024-11-19 08:57:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:17,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482669802] [2024-11-19 08:57:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:17,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:17,399 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 08:57:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482669802] [2024-11-19 08:57:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482669802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 08:57:17,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211291610] [2024-11-19 08:57:17,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:17,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 08:57:17,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 08:57:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 08:57:17,405 INFO L87 Difference]: Start difference. First operand 2322 states and 3289 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 08:57:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:17,440 INFO L93 Difference]: Finished difference Result 2184 states and 3083 transitions. [2024-11-19 08:57:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 08:57:17,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-19 08:57:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:17,448 INFO L225 Difference]: With dead ends: 2184 [2024-11-19 08:57:17,449 INFO L226 Difference]: Without dead ends: 2184 [2024-11-19 08:57:17,449 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 08:57:17,450 INFO L432 NwaCegarLoop]: 1345 mSDtfsCounter, 61 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:17,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2637 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 08:57:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2024-11-19 08:57:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2184. [2024-11-19 08:57:17,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1704 states have (on average 1.7987089201877935) internal successors, (3065), 2173 states have internal predecessors, (3065), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:17,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3083 transitions. [2024-11-19 08:57:17,492 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3083 transitions. Word has length 12 [2024-11-19 08:57:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:17,493 INFO L471 AbstractCegarLoop]: Abstraction has 2184 states and 3083 transitions. [2024-11-19 08:57:17,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 08:57:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3083 transitions. [2024-11-19 08:57:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-19 08:57:17,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:17,494 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:17,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 08:57:17,494 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:17,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash 765933813, now seen corresponding path program 1 times [2024-11-19 08:57:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:17,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488952716] [2024-11-19 08:57:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:17,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:17,553 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 08:57:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488952716] [2024-11-19 08:57:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488952716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:17,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:17,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 08:57:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912868101] [2024-11-19 08:57:17,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:17,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 08:57:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 08:57:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 08:57:17,556 INFO L87 Difference]: Start difference. First operand 2184 states and 3083 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 08:57:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:17,619 INFO L93 Difference]: Finished difference Result 2155 states and 3033 transitions. [2024-11-19 08:57:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 08:57:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-19 08:57:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:17,627 INFO L225 Difference]: With dead ends: 2155 [2024-11-19 08:57:17,627 INFO L226 Difference]: Without dead ends: 2155 [2024-11-19 08:57:17,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 08:57:17,628 INFO L432 NwaCegarLoop]: 1310 mSDtfsCounter, 41 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3902 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:17,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3902 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 08:57:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2024-11-19 08:57:17,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2149. [2024-11-19 08:57:17,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 1676 states have (on average 1.795346062052506) internal successors, (3009), 2138 states have internal predecessors, (3009), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3027 transitions. [2024-11-19 08:57:17,674 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3027 transitions. Word has length 14 [2024-11-19 08:57:17,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:17,674 INFO L471 AbstractCegarLoop]: Abstraction has 2149 states and 3027 transitions. [2024-11-19 08:57:17,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 08:57:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3027 transitions. [2024-11-19 08:57:17,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 08:57:17,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:17,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:17,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 08:57:17,676 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:17,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:17,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1739624061, now seen corresponding path program 1 times [2024-11-19 08:57:17,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:17,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293701767] [2024-11-19 08:57:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:17,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:17,833 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 08:57:17,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:17,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293701767] [2024-11-19 08:57:17,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293701767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:17,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:17,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 08:57:17,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523972805] [2024-11-19 08:57:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:17,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 08:57:17,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:17,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 08:57:17,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 08:57:17,834 INFO L87 Difference]: Start difference. First operand 2149 states and 3027 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 08:57:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:19,039 INFO L93 Difference]: Finished difference Result 2398 states and 3195 transitions. [2024-11-19 08:57:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 08:57:19,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-19 08:57:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:19,049 INFO L225 Difference]: With dead ends: 2398 [2024-11-19 08:57:19,050 INFO L226 Difference]: Without dead ends: 2398 [2024-11-19 08:57:19,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 08:57:19,051 INFO L432 NwaCegarLoop]: 1223 mSDtfsCounter, 825 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:19,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2627 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 08:57:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2024-11-19 08:57:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2145. [2024-11-19 08:57:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 1676 states have (on average 1.7905727923627686) internal successors, (3001), 2134 states have internal predecessors, (3001), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3019 transitions. [2024-11-19 08:57:19,096 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3019 transitions. Word has length 28 [2024-11-19 08:57:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:19,098 INFO L471 AbstractCegarLoop]: Abstraction has 2145 states and 3019 transitions. [2024-11-19 08:57:19,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 08:57:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3019 transitions. [2024-11-19 08:57:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-19 08:57:19,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:19,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:19,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 08:57:19,100 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:19,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2099910807, now seen corresponding path program 1 times [2024-11-19 08:57:19,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:19,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064239865] [2024-11-19 08:57:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:19,194 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 08:57:19,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:19,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064239865] [2024-11-19 08:57:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064239865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:19,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:19,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 08:57:19,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964455965] [2024-11-19 08:57:19,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:19,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 08:57:19,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:19,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 08:57:19,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 08:57:19,197 INFO L87 Difference]: Start difference. First operand 2145 states and 3019 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 08:57:19,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:19,253 INFO L93 Difference]: Finished difference Result 2145 states and 3011 transitions. [2024-11-19 08:57:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 08:57:19,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-19 08:57:19,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:19,261 INFO L225 Difference]: With dead ends: 2145 [2024-11-19 08:57:19,261 INFO L226 Difference]: Without dead ends: 2145 [2024-11-19 08:57:19,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 08:57:19,262 INFO L432 NwaCegarLoop]: 1305 mSDtfsCounter, 21 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:19,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3884 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 08:57:19,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-11-19 08:57:19,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2024-11-19 08:57:19,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 1676 states have (on average 1.785799522673031) internal successors, (2993), 2134 states have internal predecessors, (2993), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3011 transitions. [2024-11-19 08:57:19,300 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3011 transitions. Word has length 62 [2024-11-19 08:57:19,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:19,300 INFO L471 AbstractCegarLoop]: Abstraction has 2145 states and 3011 transitions. [2024-11-19 08:57:19,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 08:57:19,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3011 transitions. [2024-11-19 08:57:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 08:57:19,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:19,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:19,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 08:57:19,303 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:19,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1896484451, now seen corresponding path program 1 times [2024-11-19 08:57:19,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:19,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352288429] [2024-11-19 08:57:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:19,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 08:57:19,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:19,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352288429] [2024-11-19 08:57:19,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352288429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:19,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:19,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 08:57:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86312992] [2024-11-19 08:57:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:19,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 08:57:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 08:57:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 08:57:19,443 INFO L87 Difference]: Start difference. First operand 2145 states and 3011 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 08:57:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:19,488 INFO L93 Difference]: Finished difference Result 1914 states and 2608 transitions. [2024-11-19 08:57:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 08:57:19,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-19 08:57:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:19,496 INFO L225 Difference]: With dead ends: 1914 [2024-11-19 08:57:19,496 INFO L226 Difference]: Without dead ends: 1914 [2024-11-19 08:57:19,497 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 08:57:19,497 INFO L432 NwaCegarLoop]: 1320 mSDtfsCounter, 54 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:19,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2612 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 08:57:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2024-11-19 08:57:19,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1914. [2024-11-19 08:57:19,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1445 states have (on average 1.792387543252595) internal successors, (2590), 1903 states have internal predecessors, (2590), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:19,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2608 transitions. [2024-11-19 08:57:19,530 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2608 transitions. Word has length 70 [2024-11-19 08:57:19,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:19,531 INFO L471 AbstractCegarLoop]: Abstraction has 1914 states and 2608 transitions. [2024-11-19 08:57:19,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 08:57:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2608 transitions. [2024-11-19 08:57:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 08:57:19,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:19,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:19,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 08:57:19,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:19,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:19,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2061322021, now seen corresponding path program 1 times [2024-11-19 08:57:19,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:19,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489447909] [2024-11-19 08:57:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:19,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:20,086 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 08:57:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489447909] [2024-11-19 08:57:20,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489447909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:20,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:20,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 08:57:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621966116] [2024-11-19 08:57:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:20,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 08:57:20,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:20,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 08:57:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-19 08:57:20,090 INFO L87 Difference]: Start difference. First operand 1914 states and 2608 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:21,686 INFO L93 Difference]: Finished difference Result 1830 states and 2483 transitions. [2024-11-19 08:57:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 08:57:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-19 08:57:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:21,694 INFO L225 Difference]: With dead ends: 1830 [2024-11-19 08:57:21,694 INFO L226 Difference]: Without dead ends: 1830 [2024-11-19 08:57:21,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-19 08:57:21,695 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 2256 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:21,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 1594 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 08:57:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-11-19 08:57:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1557. [2024-11-19 08:57:21,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1172 states have (on average 1.6902730375426622) internal successors, (1981), 1546 states have internal predecessors, (1981), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 1999 transitions. [2024-11-19 08:57:21,727 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 1999 transitions. Word has length 73 [2024-11-19 08:57:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:21,728 INFO L471 AbstractCegarLoop]: Abstraction has 1557 states and 1999 transitions. [2024-11-19 08:57:21,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 08:57:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 1999 transitions. [2024-11-19 08:57:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 08:57:21,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:21,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:21,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 08:57:21,729 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:21,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1316131126, now seen corresponding path program 1 times [2024-11-19 08:57:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277668460] [2024-11-19 08:57:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:22,007 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 08:57:22,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:22,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277668460] [2024-11-19 08:57:22,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277668460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:22,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:22,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 08:57:22,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929406712] [2024-11-19 08:57:22,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:22,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 08:57:22,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 08:57:22,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 08:57:22,010 INFO L87 Difference]: Start difference. First operand 1557 states and 1999 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 08:57:22,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:22,857 INFO L93 Difference]: Finished difference Result 1556 states and 1997 transitions. [2024-11-19 08:57:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 08:57:22,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-19 08:57:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:22,863 INFO L225 Difference]: With dead ends: 1556 [2024-11-19 08:57:22,864 INFO L226 Difference]: Without dead ends: 1556 [2024-11-19 08:57:22,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 08:57:22,864 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 2 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:22,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3468 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 08:57:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2024-11-19 08:57:22,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2024-11-19 08:57:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1172 states have (on average 1.6885665529010239) internal successors, (1979), 1545 states have internal predecessors, (1979), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1997 transitions. [2024-11-19 08:57:22,893 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1997 transitions. Word has length 78 [2024-11-19 08:57:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:22,894 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 1997 transitions. [2024-11-19 08:57:22,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 08:57:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1997 transitions. [2024-11-19 08:57:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 08:57:22,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:22,896 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:22,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 08:57:22,897 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:22,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1316131127, now seen corresponding path program 1 times [2024-11-19 08:57:22,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:22,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670054912] [2024-11-19 08:57:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:23,394 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 08:57:23,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:23,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670054912] [2024-11-19 08:57:23,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670054912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:23,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:23,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 08:57:23,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215049768] [2024-11-19 08:57:23,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:23,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 08:57:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:23,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 08:57:23,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 08:57:23,400 INFO L87 Difference]: Start difference. First operand 1556 states and 1997 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 08:57:24,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:24,525 INFO L93 Difference]: Finished difference Result 1555 states and 1995 transitions. [2024-11-19 08:57:24,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 08:57:24,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-19 08:57:24,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:24,534 INFO L225 Difference]: With dead ends: 1555 [2024-11-19 08:57:24,535 INFO L226 Difference]: Without dead ends: 1555 [2024-11-19 08:57:24,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 08:57:24,535 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 1 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3483 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:24,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3483 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 08:57:24,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-19 08:57:24,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2024-11-19 08:57:24,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1170 states have (on average 1.6897435897435897) internal successors, (1977), 1544 states have internal predecessors, (1977), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1995 transitions. [2024-11-19 08:57:24,568 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1995 transitions. Word has length 78 [2024-11-19 08:57:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:24,568 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 1995 transitions. [2024-11-19 08:57:24,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 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 08:57:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1995 transitions. [2024-11-19 08:57:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-19 08:57:24,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:24,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:24,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 08:57:24,574 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:24,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:24,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1591552707, now seen corresponding path program 1 times [2024-11-19 08:57:24,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:24,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984444159] [2024-11-19 08:57:24,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:24,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:24,862 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 08:57:24,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:24,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984444159] [2024-11-19 08:57:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984444159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:24,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:24,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 08:57:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102510364] [2024-11-19 08:57:24,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:24,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 08:57:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:24,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 08:57:24,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 08:57:24,865 INFO L87 Difference]: Start difference. First operand 1555 states and 1995 transitions. Second operand has 7 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 08:57:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:26,231 INFO L93 Difference]: Finished difference Result 1573 states and 2025 transitions. [2024-11-19 08:57:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 08:57:26,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 86 [2024-11-19 08:57:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:26,238 INFO L225 Difference]: With dead ends: 1573 [2024-11-19 08:57:26,238 INFO L226 Difference]: Without dead ends: 1573 [2024-11-19 08:57:26,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 08:57:26,239 INFO L432 NwaCegarLoop]: 1221 mSDtfsCounter, 6 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:26,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5469 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 08:57:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2024-11-19 08:57:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1564. [2024-11-19 08:57:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1178 states have (on average 1.6876061120543293) internal successors, (1988), 1551 states have internal predecessors, (1988), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-19 08:57:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2015 transitions. [2024-11-19 08:57:26,274 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2015 transitions. Word has length 86 [2024-11-19 08:57:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:26,275 INFO L471 AbstractCegarLoop]: Abstraction has 1564 states and 2015 transitions. [2024-11-19 08:57:26,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 08:57:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2015 transitions. [2024-11-19 08:57:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-19 08:57:26,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:26,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:26,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 08:57:26,276 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:26,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1591552706, now seen corresponding path program 1 times [2024-11-19 08:57:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:26,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638473482] [2024-11-19 08:57:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:26,895 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 08:57:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:26,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638473482] [2024-11-19 08:57:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638473482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:26,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:26,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 08:57:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941033390] [2024-11-19 08:57:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:26,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 08:57:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 08:57:26,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 08:57:26,899 INFO L87 Difference]: Start difference. First operand 1564 states and 2015 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 08:57:28,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:28,275 INFO L93 Difference]: Finished difference Result 1564 states and 2013 transitions. [2024-11-19 08:57:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 08:57:28,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 86 [2024-11-19 08:57:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:28,279 INFO L225 Difference]: With dead ends: 1564 [2024-11-19 08:57:28,280 INFO L226 Difference]: Without dead ends: 1564 [2024-11-19 08:57:28,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 08:57:28,280 INFO L432 NwaCegarLoop]: 1228 mSDtfsCounter, 1 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:28,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4498 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 08:57:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-11-19 08:57:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1564. [2024-11-19 08:57:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1178 states have (on average 1.6859083191850595) internal successors, (1986), 1551 states have internal predecessors, (1986), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-19 08:57:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2013 transitions. [2024-11-19 08:57:28,340 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2013 transitions. Word has length 86 [2024-11-19 08:57:28,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:28,340 INFO L471 AbstractCegarLoop]: Abstraction has 1564 states and 2013 transitions. [2024-11-19 08:57:28,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 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 08:57:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2013 transitions. [2024-11-19 08:57:28,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-19 08:57:28,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:28,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:28,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 08:57:28,342 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1899019630, now seen corresponding path program 1 times [2024-11-19 08:57:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967593879] [2024-11-19 08:57:28,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:28,867 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 08:57:28,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:28,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967593879] [2024-11-19 08:57:28,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967593879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:28,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126091952] [2024-11-19 08:57:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:28,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:57:28,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:57:28,871 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 08:57:28,874 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 08:57:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:29,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-19 08:57:29,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 08:57:29,179 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 08:57:29,323 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 08:57:29,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 08:57:29,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 08:57:29,417 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:57:29,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-19 08:57:29,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-19 08:57:29,454 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 08:57:29,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 08:57:29,506 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2024-11-19 08:57:29,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2024-11-19 08:57:29,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126091952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:29,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 08:57:29,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 13 [2024-11-19 08:57:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996898628] [2024-11-19 08:57:29,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 08:57:29,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 08:57:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 08:57:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=171, Unknown=4, NotChecked=0, Total=210 [2024-11-19 08:57:29,560 INFO L87 Difference]: Start difference. First operand 1564 states and 2013 transitions. Second operand has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 08:57:32,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:32,246 INFO L93 Difference]: Finished difference Result 1563 states and 2011 transitions. [2024-11-19 08:57:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 08:57:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-19 08:57:32,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:32,250 INFO L225 Difference]: With dead ends: 1563 [2024-11-19 08:57:32,251 INFO L226 Difference]: Without dead ends: 1563 [2024-11-19 08:57:32,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=374, Unknown=4, NotChecked=0, Total=462 [2024-11-19 08:57:32,252 INFO L432 NwaCegarLoop]: 748 mSDtfsCounter, 1151 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 4504 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 6580 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:32,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 6580 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4504 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 08:57:32,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-19 08:57:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2024-11-19 08:57:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1178 states have (on average 1.6842105263157894) internal successors, (1984), 1550 states have internal predecessors, (1984), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-19 08:57:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2011 transitions. [2024-11-19 08:57:32,285 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2011 transitions. Word has length 87 [2024-11-19 08:57:32,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:32,285 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2011 transitions. [2024-11-19 08:57:32,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 08:57:32,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2011 transitions. [2024-11-19 08:57:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-19 08:57:32,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:32,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:32,308 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 08:57:32,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 08:57:32,491 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:32,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1899019629, now seen corresponding path program 1 times [2024-11-19 08:57:32,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:32,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628793871] [2024-11-19 08:57:32,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:32,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:33,436 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 08:57:33,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:33,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628793871] [2024-11-19 08:57:33,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628793871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:33,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975157837] [2024-11-19 08:57:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:33,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:57:33,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:57:33,459 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 08:57:33,461 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 08:57:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:33,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 08:57:33,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 08:57:33,771 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 08:57:33,910 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 08:57:33,911 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 08:57:33,945 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 08:57:33,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 08:57:34,176 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:57:34,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 65 [2024-11-19 08:57:34,186 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 49 treesize of output 30 [2024-11-19 08:57:34,239 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 39 treesize of output 21 [2024-11-19 08:57:34,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2024-11-19 08:57:34,277 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 08:57:34,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 08:57:34,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 08:57:34,425 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 48 treesize of output 52 [2024-11-19 08:57:34,484 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_prenex_1 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_prenex_1) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_629 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem50#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_629) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (forall ((v_ArrVal_630 (Array Int Int))) (< (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_630) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (+ |c_ULTIMATE.start_main_#t~mem50#1.offset| 25))))) is different from false [2024-11-19 08:57:34,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975157837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:34,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 08:57:34,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2024-11-19 08:57:34,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920336560] [2024-11-19 08:57:34,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 08:57:34,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 08:57:34,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:34,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 08:57:34,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=361, Unknown=1, NotChecked=38, Total=462 [2024-11-19 08:57:34,491 INFO L87 Difference]: Start difference. First operand 1563 states and 2011 transitions. Second operand has 19 states, 16 states have (on average 8.5) internal successors, (136), 19 states have internal predecessors, (136), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 08:57:38,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:38,260 INFO L93 Difference]: Finished difference Result 1562 states and 2009 transitions. [2024-11-19 08:57:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 08:57:38,260 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 8.5) internal successors, (136), 19 states have internal predecessors, (136), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2024-11-19 08:57:38,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:38,264 INFO L225 Difference]: With dead ends: 1562 [2024-11-19 08:57:38,264 INFO L226 Difference]: Without dead ends: 1562 [2024-11-19 08:57:38,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=505, Unknown=1, NotChecked=46, Total=650 [2024-11-19 08:57:38,265 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1147 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 6398 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 6427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:38,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 7139 Invalid, 6427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 6398 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-19 08:57:38,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2024-11-19 08:57:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1553. [2024-11-19 08:57:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1170 states have (on average 1.6863247863247863) internal successors, (1973), 1542 states have internal predecessors, (1973), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:38,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 1991 transitions. [2024-11-19 08:57:38,288 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 1991 transitions. Word has length 87 [2024-11-19 08:57:38,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:38,288 INFO L471 AbstractCegarLoop]: Abstraction has 1553 states and 1991 transitions. [2024-11-19 08:57:38,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 8.5) internal successors, (136), 19 states have internal predecessors, (136), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 08:57:38,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 1991 transitions. [2024-11-19 08:57:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 08:57:38,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:38,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:38,308 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 08:57:38,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 08:57:38,490 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:38,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1802103956, now seen corresponding path program 1 times [2024-11-19 08:57:38,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:38,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438877663] [2024-11-19 08:57:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:38,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:39,015 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 08:57:39,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:39,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438877663] [2024-11-19 08:57:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438877663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:39,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:39,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 08:57:39,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863670127] [2024-11-19 08:57:39,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:39,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 08:57:39,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:39,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 08:57:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-19 08:57:39,018 INFO L87 Difference]: Start difference. First operand 1553 states and 1991 transitions. Second operand has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 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 08:57:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:41,230 INFO L93 Difference]: Finished difference Result 1569 states and 2017 transitions. [2024-11-19 08:57:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 08:57:41,231 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 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 89 [2024-11-19 08:57:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:41,237 INFO L225 Difference]: With dead ends: 1569 [2024-11-19 08:57:41,238 INFO L226 Difference]: Without dead ends: 1569 [2024-11-19 08:57:41,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-19 08:57:41,240 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1178 mSDsluCounter, 5796 mSDsCounter, 0 mSdLazyCounter, 4503 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 4524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:41,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 6543 Invalid, 4524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4503 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 08:57:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2024-11-19 08:57:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1568. [2024-11-19 08:57:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1184 states have (on average 1.6807432432432432) internal successors, (1990), 1555 states have internal predecessors, (1990), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-19 08:57:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2017 transitions. [2024-11-19 08:57:41,266 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2017 transitions. Word has length 89 [2024-11-19 08:57:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:41,267 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2017 transitions. [2024-11-19 08:57:41,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 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 08:57:41,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2017 transitions. [2024-11-19 08:57:41,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 08:57:41,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:41,270 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:41,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 08:57:41,271 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:41,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1802103955, now seen corresponding path program 1 times [2024-11-19 08:57:41,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593040978] [2024-11-19 08:57:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:41,947 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 08:57:41,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593040978] [2024-11-19 08:57:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593040978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:41,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:41,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 08:57:41,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786958432] [2024-11-19 08:57:41,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:41,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 08:57:41,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 08:57:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 08:57:41,949 INFO L87 Difference]: Start difference. First operand 1568 states and 2017 transitions. Second operand has 11 states, 10 states have (on average 8.7) internal successors, (87), 11 states have internal predecessors, (87), 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 08:57:44,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:44,676 INFO L93 Difference]: Finished difference Result 1568 states and 2015 transitions. [2024-11-19 08:57:44,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 08:57:44,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 11 states have internal predecessors, (87), 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 89 [2024-11-19 08:57:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:44,679 INFO L225 Difference]: With dead ends: 1568 [2024-11-19 08:57:44,679 INFO L226 Difference]: Without dead ends: 1568 [2024-11-19 08:57:44,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-19 08:57:44,680 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 1152 mSDsluCounter, 4208 mSDsCounter, 0 mSdLazyCounter, 4890 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 4909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:44,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 4962 Invalid, 4909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4890 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-19 08:57:44,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2024-11-19 08:57:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1568. [2024-11-19 08:57:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1184 states have (on average 1.679054054054054) internal successors, (1988), 1555 states have internal predecessors, (1988), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-19 08:57:44,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2015 transitions. [2024-11-19 08:57:44,706 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2015 transitions. Word has length 89 [2024-11-19 08:57:44,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:44,706 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2015 transitions. [2024-11-19 08:57:44,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 11 states have internal predecessors, (87), 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 08:57:44,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2015 transitions. [2024-11-19 08:57:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 08:57:44,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:44,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:44,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 08:57:44,708 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:44,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash -383964681, now seen corresponding path program 1 times [2024-11-19 08:57:44,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:44,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968994149] [2024-11-19 08:57:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:44,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:45,242 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 08:57:45,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:45,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968994149] [2024-11-19 08:57:45,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968994149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:45,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970970273] [2024-11-19 08:57:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:45,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:57:45,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:57:45,245 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 08:57:45,246 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 08:57:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:45,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 08:57:45,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 08:57:45,500 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 08:57:45,603 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 08:57:45,604 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 08:57:45,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 08:57:45,672 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:57:45,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-19 08:57:45,725 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:57:45,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-19 08:57:45,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-19 08:57:45,744 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 08:57:45,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 08:57:45,756 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_879 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_879) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-19 08:57:45,763 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_879 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_879) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-19 08:57:45,807 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2024-11-19 08:57:45,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-19 08:57:45,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970970273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:45,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 08:57:45,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 15 [2024-11-19 08:57:45,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460571995] [2024-11-19 08:57:45,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 08:57:45,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 08:57:45,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:45,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 08:57:45,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=8, NotChecked=62, Total=342 [2024-11-19 08:57:45,850 INFO L87 Difference]: Start difference. First operand 1568 states and 2015 transitions. Second operand has 16 states, 14 states have (on average 9.214285714285714) internal successors, (129), 15 states have internal predecessors, (129), 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 08:57:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:48,059 INFO L93 Difference]: Finished difference Result 1567 states and 2013 transitions. [2024-11-19 08:57:48,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 08:57:48,060 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.214285714285714) internal successors, (129), 15 states have internal predecessors, (129), 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 90 [2024-11-19 08:57:48,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:48,063 INFO L225 Difference]: With dead ends: 1567 [2024-11-19 08:57:48,063 INFO L226 Difference]: Without dead ends: 1567 [2024-11-19 08:57:48,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=8, NotChecked=90, Total=650 [2024-11-19 08:57:48,065 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1147 mSDsluCounter, 5818 mSDsCounter, 0 mSdLazyCounter, 4518 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 6565 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:48,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 6565 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4518 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 08:57:48,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-19 08:57:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2024-11-19 08:57:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1184 states have (on average 1.677364864864865) internal successors, (1986), 1554 states have internal predecessors, (1986), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-19 08:57:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2013 transitions. [2024-11-19 08:57:48,120 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2013 transitions. Word has length 90 [2024-11-19 08:57:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:48,120 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2013 transitions. [2024-11-19 08:57:48,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.214285714285714) internal successors, (129), 15 states have internal predecessors, (129), 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 08:57:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2013 transitions. [2024-11-19 08:57:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 08:57:48,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:48,125 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:48,145 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 08:57:48,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:57:48,326 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:48,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:48,326 INFO L85 PathProgramCache]: Analyzing trace with hash -383964680, now seen corresponding path program 1 times [2024-11-19 08:57:48,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759969069] [2024-11-19 08:57:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:48,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:49,165 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 08:57:49,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:49,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759969069] [2024-11-19 08:57:49,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759969069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:49,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176954017] [2024-11-19 08:57:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:49,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:57:49,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:57:49,168 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 08:57:49,170 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 08:57:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:49,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-19 08:57:49,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 08:57:49,421 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 08:57:49,530 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 08:57:49,531 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 08:57:49,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-19 08:57:49,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 08:57:49,566 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 08:57:49,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-19 08:57:49,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-19 08:57:49,759 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:57:49,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-19 08:57:49,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-19 08:57:49,850 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:57:49,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-19 08:57:49,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-19 08:57:49,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-19 08:57:49,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-19 08:57:49,931 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 08:57:49,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 08:57:49,991 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1019 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4))) (forall ((v_ArrVal_1019 (Array Int Int)) (v_ArrVal_1020 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1020) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-19 08:57:50,002 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1019 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1019 (Array Int Int)) (v_ArrVal_1020 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1020) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-19 08:57:50,062 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1019 (Array Int Int)) (v_ArrVal_1026 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (v_ArrVal_1020 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1026))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1025) .cse0 v_ArrVal_1019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1020) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1019 (Array Int Int)) (v_ArrVal_1026 (Array Int Int)) (v_ArrVal_1025 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1025) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1026) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-19 08:57:50,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176954017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:57:50,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 08:57:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-19 08:57:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618485210] [2024-11-19 08:57:50,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 08:57:50,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 08:57:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:50,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 08:57:50,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=397, Unknown=3, NotChecked=126, Total=600 [2024-11-19 08:57:50,066 INFO L87 Difference]: Start difference. First operand 1567 states and 2013 transitions. Second operand has 20 states, 17 states have (on average 8.352941176470589) internal successors, (142), 20 states have internal predecessors, (142), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 08:57:55,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:55,407 INFO L93 Difference]: Finished difference Result 1574 states and 2019 transitions. [2024-11-19 08:57:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 08:57:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.352941176470589) internal successors, (142), 20 states have internal predecessors, (142), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 90 [2024-11-19 08:57:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:55,411 INFO L225 Difference]: With dead ends: 1574 [2024-11-19 08:57:55,411 INFO L226 Difference]: Without dead ends: 1574 [2024-11-19 08:57:55,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=594, Unknown=3, NotChecked=156, Total=870 [2024-11-19 08:57:55,412 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 1145 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 9257 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 9150 SdHoareTripleChecker+Invalid, 9279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 9257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:55,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 9150 Invalid, 9279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 9257 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-19 08:57:55,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-19 08:57:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1556. [2024-11-19 08:57:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1174 states have (on average 1.6814310051107326) internal successors, (1974), 1544 states have internal predecessors, (1974), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:57:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1992 transitions. [2024-11-19 08:57:55,435 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1992 transitions. Word has length 90 [2024-11-19 08:57:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:55,435 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 1992 transitions. [2024-11-19 08:57:55,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.352941176470589) internal successors, (142), 20 states have internal predecessors, (142), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 08:57:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1992 transitions. [2024-11-19 08:57:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 08:57:55,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:55,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:55,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 08:57:55,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:57:55,642 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:55,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash 612863492, now seen corresponding path program 1 times [2024-11-19 08:57:55,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:55,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748664339] [2024-11-19 08:57:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:55,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:56,242 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 08:57:56,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:56,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748664339] [2024-11-19 08:57:56,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748664339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:56,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:56,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 08:57:56,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896962033] [2024-11-19 08:57:56,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:56,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 08:57:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:56,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 08:57:56,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-19 08:57:56,246 INFO L87 Difference]: Start difference. First operand 1556 states and 1992 transitions. Second operand has 15 states, 13 states have (on average 6.923076923076923) internal successors, (90), 14 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 08:57:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:57:58,906 INFO L93 Difference]: Finished difference Result 1581 states and 2027 transitions. [2024-11-19 08:57:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 08:57:58,908 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.923076923076923) internal successors, (90), 14 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2024-11-19 08:57:58,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:57:58,911 INFO L225 Difference]: With dead ends: 1581 [2024-11-19 08:57:58,912 INFO L226 Difference]: Without dead ends: 1581 [2024-11-19 08:57:58,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-19 08:57:58,912 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 1157 mSDsluCounter, 5795 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 6541 SdHoareTripleChecker+Invalid, 4545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 08:57:58,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 6541 Invalid, 4545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4525 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 08:57:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-11-19 08:57:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1577. [2024-11-19 08:57:58,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1194 states have (on average 1.6725293132328307) internal successors, (1997), 1563 states have internal predecessors, (1997), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-19 08:57:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2017 transitions. [2024-11-19 08:57:58,942 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2017 transitions. Word has length 92 [2024-11-19 08:57:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:57:58,943 INFO L471 AbstractCegarLoop]: Abstraction has 1577 states and 2017 transitions. [2024-11-19 08:57:58,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.923076923076923) internal successors, (90), 14 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 08:57:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2017 transitions. [2024-11-19 08:57:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 08:57:58,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:57:58,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:57:58,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 08:57:58,946 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:57:58,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:57:58,947 INFO L85 PathProgramCache]: Analyzing trace with hash 612863493, now seen corresponding path program 1 times [2024-11-19 08:57:58,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:57:58,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67809810] [2024-11-19 08:57:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:57:58,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:57:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:57:59,782 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 08:57:59,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:57:59,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67809810] [2024-11-19 08:57:59,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67809810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:57:59,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:57:59,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 08:57:59,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863742371] [2024-11-19 08:57:59,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:57:59,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 08:57:59,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:57:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 08:57:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 08:57:59,786 INFO L87 Difference]: Start difference. First operand 1577 states and 2017 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 12 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 08:58:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:58:01,552 INFO L93 Difference]: Finished difference Result 1580 states and 2025 transitions. [2024-11-19 08:58:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 08:58:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 12 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2024-11-19 08:58:01,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:58:01,556 INFO L225 Difference]: With dead ends: 1580 [2024-11-19 08:58:01,556 INFO L226 Difference]: Without dead ends: 1580 [2024-11-19 08:58:01,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-19 08:58:01,557 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 1172 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 3533 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 08:58:01,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 3870 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3533 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 08:58:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-19 08:58:01,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1577. [2024-11-19 08:58:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1194 states have (on average 1.670854271356784) internal successors, (1995), 1563 states have internal predecessors, (1995), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-19 08:58:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2015 transitions. [2024-11-19 08:58:01,577 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2015 transitions. Word has length 92 [2024-11-19 08:58:01,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:58:01,578 INFO L471 AbstractCegarLoop]: Abstraction has 1577 states and 2015 transitions. [2024-11-19 08:58:01,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 12 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 08:58:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2015 transitions. [2024-11-19 08:58:01,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 08:58:01,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:58:01,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:58:01,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 08:58:01,579 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:58:01,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:58:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1193285735, now seen corresponding path program 1 times [2024-11-19 08:58:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:58:01,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448069369] [2024-11-19 08:58:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:58:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:58:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:58:02,263 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 08:58:02,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:58:02,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448069369] [2024-11-19 08:58:02,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448069369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:58:02,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312777485] [2024-11-19 08:58:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:58:02,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:58:02,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:58:02,266 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 08:58:02,268 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 08:58:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:58:02,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 08:58:02,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 08:58:02,544 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 08:58:02,642 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 08:58:02,643 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 08:58:02,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 08:58:02,705 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:58:02,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-19 08:58:02,751 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:58:02,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-19 08:58:02,808 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:58:02,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-19 08:58:02,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-19 08:58:02,830 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 08:58:02,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 08:58:02,903 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1300 (Array Int Int)) (v_ArrVal_1299 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1299))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1300)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-19 08:58:02,977 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2024-11-19 08:58:02,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2024-11-19 08:58:03,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312777485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:58:03,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 08:58:03,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 17 [2024-11-19 08:58:03,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720496281] [2024-11-19 08:58:03,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 08:58:03,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 08:58:03,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:58:03,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 08:58:03,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=370, Unknown=23, NotChecked=40, Total=506 [2024-11-19 08:58:03,026 INFO L87 Difference]: Start difference. First operand 1577 states and 2015 transitions. Second operand has 18 states, 16 states have (on average 8.375) internal successors, (134), 17 states have internal predecessors, (134), 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 08:58:05,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:58:05,842 INFO L93 Difference]: Finished difference Result 1579 states and 2023 transitions. [2024-11-19 08:58:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 08:58:05,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.375) internal successors, (134), 17 states have internal predecessors, (134), 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 93 [2024-11-19 08:58:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:58:05,845 INFO L225 Difference]: With dead ends: 1579 [2024-11-19 08:58:05,845 INFO L226 Difference]: Without dead ends: 1579 [2024-11-19 08:58:05,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=705, Unknown=23, NotChecked=56, Total=930 [2024-11-19 08:58:05,846 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 1141 mSDsluCounter, 7945 mSDsCounter, 0 mSdLazyCounter, 5982 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 6002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-19 08:58:05,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 8691 Invalid, 6002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5982 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-19 08:58:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-11-19 08:58:05,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1576. [2024-11-19 08:58:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1194 states have (on average 1.669179229480737) internal successors, (1993), 1562 states have internal predecessors, (1993), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-19 08:58:05,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2013 transitions. [2024-11-19 08:58:05,868 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2013 transitions. Word has length 93 [2024-11-19 08:58:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:58:05,869 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 2013 transitions. [2024-11-19 08:58:05,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.375) internal successors, (134), 17 states have internal predecessors, (134), 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 08:58:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2013 transitions. [2024-11-19 08:58:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 08:58:05,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:58:05,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:58:05,889 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 08:58:06,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-19 08:58:06,075 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:58:06,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:58:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1193285734, now seen corresponding path program 1 times [2024-11-19 08:58:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:58:06,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247031199] [2024-11-19 08:58:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:58:06,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:58:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:58:06,962 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 08:58:06,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:58:06,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247031199] [2024-11-19 08:58:06,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247031199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:58:06,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668790279] [2024-11-19 08:58:06,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:58:06,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:58:06,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 08:58:06,966 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 08:58:06,967 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 08:58:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:58:07,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-19 08:58:07,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 08:58:07,239 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 08:58:07,324 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 08:58:07,336 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 08:58:07,336 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 08:58:07,347 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 08:58:07,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 08:58:07,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-19 08:58:07,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-19 08:58:07,519 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:58:07,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-19 08:58:07,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-19 08:58:07,606 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:58:07,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-19 08:58:07,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-19 08:58:07,670 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 08:58:07,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-19 08:58:07,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-19 08:58:07,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-19 08:58:07,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-19 08:58:07,701 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 08:58:07,701 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 08:58:07,759 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1454 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1455 (Array Int Int)) (v_ArrVal_1454 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1455) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-19 08:58:07,771 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1455 (Array Int Int)) (v_ArrVal_1454 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1455) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1454 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8)))))) is different from false [2024-11-19 08:58:07,792 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1453) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1452) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1455 (Array Int Int)) (v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1452))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1453) .cse1 v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1455) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))) is different from false [2024-11-19 08:58:07,807 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_1455 (Array Int Int)) (v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1452))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1453) .cse1 v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 12) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1455) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1453) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1452) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 8)))))) is different from false [2024-11-19 08:58:07,866 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int)) (v_ArrVal_1461 (Array Int Int)) (v_ArrVal_1460 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1460))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1461) .cse0 v_ArrVal_1453) (select (select (store .cse1 .cse0 v_ArrVal_1452) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1454))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 8))) (forall ((v_ArrVal_1455 (Array Int Int)) (v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int)) (v_ArrVal_1461 (Array Int Int)) (v_ArrVal_1460 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1460))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 v_ArrVal_1452))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1461) .cse3 v_ArrVal_1453) .cse4 v_ArrVal_1454) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 12) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_1455) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2024-11-19 08:58:07,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668790279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 08:58:07,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 08:58:07,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 17 [2024-11-19 08:58:07,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218141742] [2024-11-19 08:58:07,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 08:58:07,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 08:58:07,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:58:07,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 08:58:07,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=321, Unknown=5, NotChecked=200, Total=600 [2024-11-19 08:58:07,871 INFO L87 Difference]: Start difference. First operand 1576 states and 2013 transitions. Second operand has 18 states, 16 states have (on average 8.6875) internal successors, (139), 18 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 08:58:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:58:11,691 INFO L93 Difference]: Finished difference Result 1578 states and 2021 transitions. [2024-11-19 08:58:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 08:58:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.6875) internal successors, (139), 18 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2024-11-19 08:58:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:58:11,699 INFO L225 Difference]: With dead ends: 1578 [2024-11-19 08:58:11,699 INFO L226 Difference]: Without dead ends: 1578 [2024-11-19 08:58:11,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=546, Unknown=5, NotChecked=260, Total=930 [2024-11-19 08:58:11,700 INFO L432 NwaCegarLoop]: 751 mSDtfsCounter, 1142 mSDsluCounter, 4953 mSDsCounter, 0 mSdLazyCounter, 5375 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 5704 SdHoareTripleChecker+Invalid, 5396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 5375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-19 08:58:11,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 5704 Invalid, 5396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 5375 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-19 08:58:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-19 08:58:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1554. [2024-11-19 08:58:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1174 states have (on average 1.678023850085179) internal successors, (1970), 1542 states have internal predecessors, (1970), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 08:58:11,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 1988 transitions. [2024-11-19 08:58:11,746 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 1988 transitions. Word has length 93 [2024-11-19 08:58:11,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:58:11,747 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 1988 transitions. [2024-11-19 08:58:11,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.6875) internal successors, (139), 18 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 08:58:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 1988 transitions. [2024-11-19 08:58:11,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 08:58:11,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:58:11,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:58:11,771 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 08:58:11,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 08:58:11,950 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:58:11,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:58:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash -89061485, now seen corresponding path program 1 times [2024-11-19 08:58:11,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:58:11,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869294537] [2024-11-19 08:58:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:58:11,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:58:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:58:12,608 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 08:58:12,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:58:12,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869294537] [2024-11-19 08:58:12,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869294537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:58:12,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:58:12,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 08:58:12,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796537277] [2024-11-19 08:58:12,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:58:12,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 08:58:12,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:58:12,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 08:58:12,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-19 08:58:12,612 INFO L87 Difference]: Start difference. First operand 1554 states and 1988 transitions. Second operand has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 08:58:14,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 08:58:14,754 INFO L93 Difference]: Finished difference Result 1585 states and 2029 transitions. [2024-11-19 08:58:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 08:58:14,754 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2024-11-19 08:58:14,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 08:58:14,757 INFO L225 Difference]: With dead ends: 1585 [2024-11-19 08:58:14,757 INFO L226 Difference]: Without dead ends: 1585 [2024-11-19 08:58:14,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2024-11-19 08:58:14,758 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1174 mSDsluCounter, 6547 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 7292 SdHoareTripleChecker+Invalid, 5046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 08:58:14,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 7292 Invalid, 5046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 08:58:14,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-19 08:58:14,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1581. [2024-11-19 08:58:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1200 states have (on average 1.6658333333333333) internal successors, (1999), 1567 states have internal predecessors, (1999), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-19 08:58:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2019 transitions. [2024-11-19 08:58:14,782 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2019 transitions. Word has length 95 [2024-11-19 08:58:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 08:58:14,782 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2019 transitions. [2024-11-19 08:58:14,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 08:58:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2019 transitions. [2024-11-19 08:58:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 08:58:14,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 08:58:14,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 08:58:14,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 08:58:14,784 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-11-19 08:58:14,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 08:58:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash -89061484, now seen corresponding path program 1 times [2024-11-19 08:58:14,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 08:58:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872618737] [2024-11-19 08:58:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 08:58:14,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 08:58:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 08:58:15,703 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 08:58:15,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 08:58:15,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872618737] [2024-11-19 08:58:15,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872618737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 08:58:15,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 08:58:15,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 08:58:15,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100385491] [2024-11-19 08:58:15,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 08:58:15,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 08:58:15,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 08:58:15,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 08:58:15,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 08:58:15,707 INFO L87 Difference]: Start difference. First operand 1581 states and 2019 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)