./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 20:59:13,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 20:59:13,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 20:59:13,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 20:59:13,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 20:59:13,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 20:59:13,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 20:59:13,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 20:59:13,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 20:59:13,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 20:59:13,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 20:59:13,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 20:59:13,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 20:59:13,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 20:59:13,586 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 20:59:13,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 20:59:13,587 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 20:59:13,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 20:59:13,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 20:59:13,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 20:59:13,588 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 20:59:13,591 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 20:59:13,591 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 20:59:13,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 20:59:13,592 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 20:59:13,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 20:59:13,592 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 20:59:13,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 20:59:13,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 20:59:13,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 20:59:13,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 20:59:13,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 20:59:13,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 20:59:13,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:59:13,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 20:59:13,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 20:59:13,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 20:59:13,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 20:59:13,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 20:59:13,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 20:59:13,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 20:59:13,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 20:59:13,598 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 [2024-11-22 20:59:13,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 20:59:13,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 20:59:13,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 20:59:13,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 20:59:13,876 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 20:59:13,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2024-11-22 20:59:15,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 20:59:15,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 20:59:15,696 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2024-11-22 20:59:15,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c2b139f/622580ebe42b4dc286ab12ed5f5ff7df/FLAG8b0e9dde9 [2024-11-22 20:59:15,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c2b139f/622580ebe42b4dc286ab12ed5f5ff7df [2024-11-22 20:59:15,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 20:59:15,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 20:59:15,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 20:59:15,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 20:59:15,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 20:59:15,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:15" (1/1) ... [2024-11-22 20:59:15,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d2d763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:15, skipping insertion in model container [2024-11-22 20:59:15,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:15" (1/1) ... [2024-11-22 20:59:15,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:59:16,334 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,369 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,373 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,377 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,383 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,430 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,432 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,436 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,460 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,460 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,462 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,463 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,476 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,477 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,479 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,479 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,494 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,494 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,506 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,506 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,508 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,509 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:16,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:59:16,545 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 20:59:16,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:59:16,739 INFO L204 MainTranslator]: Completed translation [2024-11-22 20:59:16,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16 WrapperNode [2024-11-22 20:59:16,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 20:59:16,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 20:59:16,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 20:59:16,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 20:59:16,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:16,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:16,930 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3443 [2024-11-22 20:59:16,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 20:59:16,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 20:59:16,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 20:59:16,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 20:59:16,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:16,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:16,968 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,197 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 372, 106]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 86 writes are split as follows [0, 82, 4]. [2024-11-22 20:59:17,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 20:59:17,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 20:59:17,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 20:59:17,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 20:59:17,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (1/1) ... [2024-11-22 20:59:17,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:59:17,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 20:59:17,392 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) [2024-11-22 20:59:17,396 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 [2024-11-22 20:59:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-22 20:59:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-22 20:59:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 20:59:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 20:59:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 20:59:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 20:59:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 20:59:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 20:59:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 20:59:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 20:59:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 20:59:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 20:59:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-22 20:59:17,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 20:59:17,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 20:59:17,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-22 20:59:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 20:59:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 20:59:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 20:59:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 20:59:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 20:59:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 20:59:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 20:59:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 20:59:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 20:59:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 20:59:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 20:59:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 20:59:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 20:59:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 20:59:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 20:59:17,764 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 20:59:17,767 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 20:59:17,833 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:59:17,866 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:59:17,886 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:59:22,050 INFO L? ?]: Removed 2487 outVars from TransFormulas that were not future-live. [2024-11-22 20:59:22,051 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 20:59:22,112 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 20:59:22,113 INFO L316 CfgBuilder]: Removed 151 assume(true) statements. [2024-11-22 20:59:22,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:59:22 BoogieIcfgContainer [2024-11-22 20:59:22,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 20:59:22,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 20:59:22,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 20:59:22,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 20:59:22,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:59:15" (1/3) ... [2024-11-22 20:59:22,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639c3ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:59:22, skipping insertion in model container [2024-11-22 20:59:22,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:16" (2/3) ... [2024-11-22 20:59:22,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639c3ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:59:22, skipping insertion in model container [2024-11-22 20:59:22,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:59:22" (3/3) ... [2024-11-22 20:59:22,124 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i [2024-11-22 20:59:22,140 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 20:59:22,141 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 986 error locations. [2024-11-22 20:59:22,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 20:59:22,290 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;@52f73804, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 20:59:22,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 986 error locations. [2024-11-22 20:59:22,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 2650 states, 1652 states have (on average 1.9776029055690072) internal successors, (3267), 2636 states have internal predecessors, (3267), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 20:59:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 20:59:22,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:22,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 20:59:22,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:22,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash 84472, now seen corresponding path program 1 times [2024-11-22 20:59:22,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:22,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244602087] [2024-11-22 20:59:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:22,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:22,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:22,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244602087] [2024-11-22 20:59:22,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244602087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:22,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:22,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:59:22,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238716401] [2024-11-22 20:59:22,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:22,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:22,615 INFO L87 Difference]: Start difference. First operand has 2650 states, 1652 states have (on average 1.9776029055690072) internal successors, (3267), 2636 states have internal predecessors, (3267), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:24,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:24,329 INFO L93 Difference]: Finished difference Result 3236 states and 3807 transitions. [2024-11-22 20:59:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:24,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 20:59:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:24,372 INFO L225 Difference]: With dead ends: 3236 [2024-11-22 20:59:24,372 INFO L226 Difference]: Without dead ends: 3234 [2024-11-22 20:59:24,374 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 [2024-11-22 20:59:24,377 INFO L432 NwaCegarLoop]: 2197 mSDtfsCounter, 2869 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:24,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 2734 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 20:59:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2024-11-22 20:59:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2887. [2024-11-22 20:59:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 1917 states have (on average 1.8669796557120502) internal successors, (3579), 2871 states have internal predecessors, (3579), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 20:59:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 3611 transitions. [2024-11-22 20:59:24,573 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 3611 transitions. Word has length 3 [2024-11-22 20:59:24,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:24,573 INFO L471 AbstractCegarLoop]: Abstraction has 2887 states and 3611 transitions. [2024-11-22 20:59:24,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 3611 transitions. [2024-11-22 20:59:24,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 20:59:24,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:24,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 20:59:24,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 20:59:24,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:24,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:24,576 INFO L85 PathProgramCache]: Analyzing trace with hash 84473, now seen corresponding path program 1 times [2024-11-22 20:59:24,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:24,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387888101] [2024-11-22 20:59:24,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:24,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:24,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:24,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:24,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387888101] [2024-11-22 20:59:24,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387888101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:24,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:24,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:59:24,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986721255] [2024-11-22 20:59:24,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:24,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:24,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:24,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:24,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:24,717 INFO L87 Difference]: Start difference. First operand 2887 states and 3611 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:26,761 INFO L93 Difference]: Finished difference Result 4956 states and 6133 transitions. [2024-11-22 20:59:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:26,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 20:59:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:26,782 INFO L225 Difference]: With dead ends: 4956 [2024-11-22 20:59:26,782 INFO L226 Difference]: Without dead ends: 4956 [2024-11-22 20:59:26,784 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 [2024-11-22 20:59:26,786 INFO L432 NwaCegarLoop]: 2399 mSDtfsCounter, 2502 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:26,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 4507 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 20:59:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4956 states. [2024-11-22 20:59:26,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4956 to 4280. [2024-11-22 20:59:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 3308 states have (on average 1.835247883917775) internal successors, (6071), 4257 states have internal predecessors, (6071), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 6117 transitions. [2024-11-22 20:59:26,890 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 6117 transitions. Word has length 3 [2024-11-22 20:59:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:26,891 INFO L471 AbstractCegarLoop]: Abstraction has 4280 states and 6117 transitions. [2024-11-22 20:59:26,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 6117 transitions. [2024-11-22 20:59:26,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 20:59:26,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:26,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:26,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 20:59:26,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:26,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash 327722514, now seen corresponding path program 1 times [2024-11-22 20:59:26,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:26,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737316736] [2024-11-22 20:59:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:26,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:26,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:26,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737316736] [2024-11-22 20:59:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737316736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:26,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:26,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:59:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512214233] [2024-11-22 20:59:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:26,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:26,992 INFO L87 Difference]: Start difference. First operand 4280 states and 6117 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:28,423 INFO L93 Difference]: Finished difference Result 5364 states and 7438 transitions. [2024-11-22 20:59:28,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:28,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-22 20:59:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:28,444 INFO L225 Difference]: With dead ends: 5364 [2024-11-22 20:59:28,445 INFO L226 Difference]: Without dead ends: 5364 [2024-11-22 20:59:28,445 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 [2024-11-22 20:59:28,446 INFO L432 NwaCegarLoop]: 3528 mSDtfsCounter, 2840 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:28,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 4697 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 20:59:28,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2024-11-22 20:59:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 4188. [2024-11-22 20:59:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4188 states, 3308 states have (on average 1.7868802902055623) internal successors, (5911), 4165 states have internal predecessors, (5911), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4188 states to 4188 states and 5957 transitions. [2024-11-22 20:59:28,566 INFO L78 Accepts]: Start accepts. Automaton has 4188 states and 5957 transitions. Word has length 8 [2024-11-22 20:59:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:28,566 INFO L471 AbstractCegarLoop]: Abstraction has 4188 states and 5957 transitions. [2024-11-22 20:59:28,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4188 states and 5957 transitions. [2024-11-22 20:59:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 20:59:28,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:28,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:28,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 20:59:28,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:28,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash 327722515, now seen corresponding path program 1 times [2024-11-22 20:59:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:28,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769434310] [2024-11-22 20:59:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:28,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:28,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:28,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769434310] [2024-11-22 20:59:28,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769434310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:28,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:28,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:59:28,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962757409] [2024-11-22 20:59:28,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:28,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:28,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:28,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:28,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:28,658 INFO L87 Difference]: Start difference. First operand 4188 states and 5957 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:30,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:30,273 INFO L93 Difference]: Finished difference Result 6923 states and 9906 transitions. [2024-11-22 20:59:30,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:30,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-22 20:59:30,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:30,295 INFO L225 Difference]: With dead ends: 6923 [2024-11-22 20:59:30,295 INFO L226 Difference]: Without dead ends: 6923 [2024-11-22 20:59:30,295 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 [2024-11-22 20:59:30,296 INFO L432 NwaCegarLoop]: 3882 mSDtfsCounter, 2319 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:30,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2323 Valid, 5660 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 20:59:30,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6923 states. [2024-11-22 20:59:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6923 to 4720. [2024-11-22 20:59:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 3850 states have (on average 1.7805194805194806) internal successors, (6855), 4697 states have internal predecessors, (6855), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:30,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 6901 transitions. [2024-11-22 20:59:30,400 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 6901 transitions. Word has length 8 [2024-11-22 20:59:30,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:30,400 INFO L471 AbstractCegarLoop]: Abstraction has 4720 states and 6901 transitions. [2024-11-22 20:59:30,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 6901 transitions. [2024-11-22 20:59:30,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 20:59:30,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:30,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:30,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 20:59:30,402 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr638REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:30,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash -342826361, now seen corresponding path program 1 times [2024-11-22 20:59:30,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:30,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561427544] [2024-11-22 20:59:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:30,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:30,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:30,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561427544] [2024-11-22 20:59:30,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561427544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:30,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:30,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825603326] [2024-11-22 20:59:30,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:30,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:30,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:30,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:30,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:30,526 INFO L87 Difference]: Start difference. First operand 4720 states and 6901 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-22 20:59:30,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:30,751 INFO L93 Difference]: Finished difference Result 6557 states and 9343 transitions. [2024-11-22 20:59:30,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:30,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-22 20:59:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:30,772 INFO L225 Difference]: With dead ends: 6557 [2024-11-22 20:59:30,773 INFO L226 Difference]: Without dead ends: 6557 [2024-11-22 20:59:30,773 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 [2024-11-22 20:59:30,774 INFO L432 NwaCegarLoop]: 3442 mSDtfsCounter, 1449 mSDsluCounter, 6290 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 9732 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:30,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 9732 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 20:59:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6557 states. [2024-11-22 20:59:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6557 to 4722. [2024-11-22 20:59:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4722 states, 3852 states have (on average 1.7801142263759087) internal successors, (6857), 4699 states have internal predecessors, (6857), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4722 states to 4722 states and 6903 transitions. [2024-11-22 20:59:30,872 INFO L78 Accepts]: Start accepts. Automaton has 4722 states and 6903 transitions. Word has length 11 [2024-11-22 20:59:30,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:30,872 INFO L471 AbstractCegarLoop]: Abstraction has 4722 states and 6903 transitions. [2024-11-22 20:59:30,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-22 20:59:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4722 states and 6903 transitions. [2024-11-22 20:59:30,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 20:59:30,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:30,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:30,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 20:59:30,874 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr324REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:30,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1711966207, now seen corresponding path program 1 times [2024-11-22 20:59:30,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:30,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049942863] [2024-11-22 20:59:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:30,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:31,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:31,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049942863] [2024-11-22 20:59:31,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049942863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:31,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:31,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:31,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121104630] [2024-11-22 20:59:31,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:31,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:31,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:31,007 INFO L87 Difference]: Start difference. First operand 4722 states and 6903 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:31,240 INFO L93 Difference]: Finished difference Result 6557 states and 9342 transitions. [2024-11-22 20:59:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:31,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-22 20:59:31,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:31,261 INFO L225 Difference]: With dead ends: 6557 [2024-11-22 20:59:31,261 INFO L226 Difference]: Without dead ends: 6557 [2024-11-22 20:59:31,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:31,263 INFO L432 NwaCegarLoop]: 3442 mSDtfsCounter, 1438 mSDsluCounter, 6290 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 9732 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:31,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 9732 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 20:59:31,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6557 states. [2024-11-22 20:59:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6557 to 4732. [2024-11-22 20:59:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4732 states, 3862 states have (on average 1.7780942516830658) internal successors, (6867), 4709 states have internal predecessors, (6867), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:31,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4732 states to 4732 states and 6913 transitions. [2024-11-22 20:59:31,396 INFO L78 Accepts]: Start accepts. Automaton has 4732 states and 6913 transitions. Word has length 20 [2024-11-22 20:59:31,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:31,396 INFO L471 AbstractCegarLoop]: Abstraction has 4732 states and 6913 transitions. [2024-11-22 20:59:31,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4732 states and 6913 transitions. [2024-11-22 20:59:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 20:59:31,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:31,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:31,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 20:59:31,397 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:31,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash -286362849, now seen corresponding path program 1 times [2024-11-22 20:59:31,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:31,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582866483] [2024-11-22 20:59:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:31,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:31,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582866483] [2024-11-22 20:59:31,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582866483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:31,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:31,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:31,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452332627] [2024-11-22 20:59:31,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:31,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:31,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:31,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:31,473 INFO L87 Difference]: Start difference. First operand 4732 states and 6913 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:32,916 INFO L93 Difference]: Finished difference Result 4807 states and 7019 transitions. [2024-11-22 20:59:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:32,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-22 20:59:32,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:32,932 INFO L225 Difference]: With dead ends: 4807 [2024-11-22 20:59:32,932 INFO L226 Difference]: Without dead ends: 4807 [2024-11-22 20:59:32,933 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 [2024-11-22 20:59:32,937 INFO L432 NwaCegarLoop]: 2025 mSDtfsCounter, 3103 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:32,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3113 Valid, 3925 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 20:59:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2024-11-22 20:59:32,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4709. [2024-11-22 20:59:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4709 states, 3862 states have (on average 1.7661833247022267) internal successors, (6821), 4686 states have internal predecessors, (6821), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4709 states to 4709 states and 6867 transitions. [2024-11-22 20:59:33,016 INFO L78 Accepts]: Start accepts. Automaton has 4709 states and 6867 transitions. Word has length 20 [2024-11-22 20:59:33,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:33,016 INFO L471 AbstractCegarLoop]: Abstraction has 4709 states and 6867 transitions. [2024-11-22 20:59:33,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4709 states and 6867 transitions. [2024-11-22 20:59:33,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 20:59:33,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:33,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:33,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 20:59:33,017 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -286362848, now seen corresponding path program 1 times [2024-11-22 20:59:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886469161] [2024-11-22 20:59:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:33,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886469161] [2024-11-22 20:59:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886469161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:33,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:33,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:33,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566671152] [2024-11-22 20:59:33,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:33,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:33,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:33,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:33,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:33,088 INFO L87 Difference]: Start difference. First operand 4709 states and 6867 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:33,134 INFO L93 Difference]: Finished difference Result 4571 states and 6661 transitions. [2024-11-22 20:59:33,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:33,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-22 20:59:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:33,145 INFO L225 Difference]: With dead ends: 4571 [2024-11-22 20:59:33,145 INFO L226 Difference]: Without dead ends: 4571 [2024-11-22 20:59:33,146 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 [2024-11-22 20:59:33,146 INFO L432 NwaCegarLoop]: 2856 mSDtfsCounter, 61 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5659 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 [2024-11-22 20:59:33,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5659 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:33,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2024-11-22 20:59:33,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4571. [2024-11-22 20:59:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4571 states, 3736 states have (on average 1.770610278372591) internal successors, (6615), 4548 states have internal predecessors, (6615), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4571 states to 4571 states and 6661 transitions. [2024-11-22 20:59:33,216 INFO L78 Accepts]: Start accepts. Automaton has 4571 states and 6661 transitions. Word has length 20 [2024-11-22 20:59:33,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:33,216 INFO L471 AbstractCegarLoop]: Abstraction has 4571 states and 6661 transitions. [2024-11-22 20:59:33,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4571 states and 6661 transitions. [2024-11-22 20:59:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 20:59:33,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:33,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:33,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 20:59:33,218 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:33,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash -316632036, now seen corresponding path program 1 times [2024-11-22 20:59:33,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:33,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463267858] [2024-11-22 20:59:33,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:33,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:33,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:33,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:33,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463267858] [2024-11-22 20:59:33,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463267858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:33,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:33,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:33,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074039100] [2024-11-22 20:59:33,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:33,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:33,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:33,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:33,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:33,294 INFO L87 Difference]: Start difference. First operand 4571 states and 6661 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:33,367 INFO L93 Difference]: Finished difference Result 4542 states and 6611 transitions. [2024-11-22 20:59:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:33,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-22 20:59:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:33,377 INFO L225 Difference]: With dead ends: 4542 [2024-11-22 20:59:33,378 INFO L226 Difference]: Without dead ends: 4542 [2024-11-22 20:59:33,378 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 [2024-11-22 20:59:33,378 INFO L432 NwaCegarLoop]: 2821 mSDtfsCounter, 41 mSDsluCounter, 5614 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8435 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 [2024-11-22 20:59:33,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8435 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2024-11-22 20:59:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4536. [2024-11-22 20:59:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 3708 states have (on average 1.7688781014023733) internal successors, (6559), 4513 states have internal predecessors, (6559), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 6605 transitions. [2024-11-22 20:59:33,444 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 6605 transitions. Word has length 22 [2024-11-22 20:59:33,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:33,444 INFO L471 AbstractCegarLoop]: Abstraction has 4536 states and 6605 transitions. [2024-11-22 20:59:33,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:33,444 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 6605 transitions. [2024-11-22 20:59:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 20:59:33,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:33,445 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] [2024-11-22 20:59:33,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 20:59:33,446 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:33,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:33,446 INFO L85 PathProgramCache]: Analyzing trace with hash -828222326, now seen corresponding path program 1 times [2024-11-22 20:59:33,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:33,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077949571] [2024-11-22 20:59:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:33,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:33,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:33,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077949571] [2024-11-22 20:59:33,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077949571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:33,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:33,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:33,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321576358] [2024-11-22 20:59:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:33,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:33,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:33,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:33,650 INFO L87 Difference]: Start difference. First operand 4536 states and 6605 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-22 20:59:35,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:35,487 INFO L93 Difference]: Finished difference Result 6833 states and 9754 transitions. [2024-11-22 20:59:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:35,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2024-11-22 20:59:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:35,503 INFO L225 Difference]: With dead ends: 6833 [2024-11-22 20:59:35,503 INFO L226 Difference]: Without dead ends: 6833 [2024-11-22 20:59:35,503 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 [2024-11-22 20:59:35,504 INFO L432 NwaCegarLoop]: 2286 mSDtfsCounter, 2318 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:35,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2322 Valid, 5935 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 20:59:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6833 states. [2024-11-22 20:59:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6833 to 4532. [2024-11-22 20:59:35,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 3708 states have (on average 1.766720604099245) internal successors, (6551), 4509 states have internal predecessors, (6551), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6597 transitions. [2024-11-22 20:59:35,579 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6597 transitions. Word has length 36 [2024-11-22 20:59:35,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:35,582 INFO L471 AbstractCegarLoop]: Abstraction has 4532 states and 6597 transitions. [2024-11-22 20:59:35,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-22 20:59:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6597 transitions. [2024-11-22 20:59:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 20:59:35,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:35,587 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] [2024-11-22 20:59:35,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 20:59:35,588 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr119REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:35,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:35,588 INFO L85 PathProgramCache]: Analyzing trace with hash 852766398, now seen corresponding path program 1 times [2024-11-22 20:59:35,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:35,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711397876] [2024-11-22 20:59:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:35,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711397876] [2024-11-22 20:59:35,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711397876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:35,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:35,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:35,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304102974] [2024-11-22 20:59:35,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:35,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:35,717 INFO L87 Difference]: Start difference. First operand 4532 states and 6597 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 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) [2024-11-22 20:59:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:35,795 INFO L93 Difference]: Finished difference Result 4532 states and 6589 transitions. [2024-11-22 20:59:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 20:59:35,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 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 [2024-11-22 20:59:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:35,805 INFO L225 Difference]: With dead ends: 4532 [2024-11-22 20:59:35,806 INFO L226 Difference]: Without dead ends: 4532 [2024-11-22 20:59:35,806 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 [2024-11-22 20:59:35,807 INFO L432 NwaCegarLoop]: 2816 mSDtfsCounter, 21 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8417 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 [2024-11-22 20:59:35,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8417 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2024-11-22 20:59:35,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2024-11-22 20:59:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 3708 states have (on average 1.7645631067961165) internal successors, (6543), 4509 states have internal predecessors, (6543), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 20:59:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6589 transitions. [2024-11-22 20:59:35,882 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6589 transitions. Word has length 70 [2024-11-22 20:59:35,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:35,882 INFO L471 AbstractCegarLoop]: Abstraction has 4532 states and 6589 transitions. [2024-11-22 20:59:35,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 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) [2024-11-22 20:59:35,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6589 transitions. [2024-11-22 20:59:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 20:59:35,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:35,887 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] [2024-11-22 20:59:35,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 20:59:35,887 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr119REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:35,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:35,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1685969162, now seen corresponding path program 1 times [2024-11-22 20:59:35,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:35,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560814032] [2024-11-22 20:59:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:35,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:36,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:36,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560814032] [2024-11-22 20:59:36,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560814032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:36,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:36,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:36,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91638627] [2024-11-22 20:59:36,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:36,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:36,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:36,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:36,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:36,057 INFO L87 Difference]: Start difference. First operand 4532 states and 6589 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-11-22 20:59:36,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:36,163 INFO L93 Difference]: Finished difference Result 6036 states and 8768 transitions. [2024-11-22 20:59:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:36,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 [2024-11-22 20:59:36,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:36,178 INFO L225 Difference]: With dead ends: 6036 [2024-11-22 20:59:36,178 INFO L226 Difference]: Without dead ends: 6036 [2024-11-22 20:59:36,179 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 [2024-11-22 20:59:36,180 INFO L432 NwaCegarLoop]: 2832 mSDtfsCounter, 1083 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 5601 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:36,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 5601 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 20:59:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2024-11-22 20:59:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 5385. [2024-11-22 20:59:36,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5385 states, 4557 states have (on average 1.7469826640333552) internal successors, (7961), 5358 states have internal predecessors, (7961), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 20:59:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5385 states to 5385 states and 8015 transitions. [2024-11-22 20:59:36,306 INFO L78 Accepts]: Start accepts. Automaton has 5385 states and 8015 transitions. Word has length 78 [2024-11-22 20:59:36,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:36,306 INFO L471 AbstractCegarLoop]: Abstraction has 5385 states and 8015 transitions. [2024-11-22 20:59:36,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-11-22 20:59:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5385 states and 8015 transitions. [2024-11-22 20:59:36,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 20:59:36,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:36,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:36,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 20:59:36,309 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:36,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1252654197, now seen corresponding path program 1 times [2024-11-22 20:59:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003743313] [2024-11-22 20:59:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:36,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:36,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:36,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003743313] [2024-11-22 20:59:36,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003743313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:36,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:36,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 20:59:36,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616136416] [2024-11-22 20:59:36,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:36,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 20:59:36,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 20:59:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:59:36,797 INFO L87 Difference]: Start difference. First operand 5385 states and 8015 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:38,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:38,380 INFO L93 Difference]: Finished difference Result 5301 states and 7873 transitions. [2024-11-22 20:59:38,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 20:59:38,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-22 20:59:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:38,394 INFO L225 Difference]: With dead ends: 5301 [2024-11-22 20:59:38,395 INFO L226 Difference]: Without dead ends: 5301 [2024-11-22 20:59:38,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:59:38,396 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 5265 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:38,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5275 Valid, 3045 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 20:59:38,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2024-11-22 20:59:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 4759. [2024-11-22 20:59:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4759 states, 4015 states have (on average 1.7073474470734744) internal successors, (6855), 4732 states have internal predecessors, (6855), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 20:59:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4759 states to 4759 states and 6909 transitions. [2024-11-22 20:59:38,488 INFO L78 Accepts]: Start accepts. Automaton has 4759 states and 6909 transitions. Word has length 81 [2024-11-22 20:59:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:38,490 INFO L471 AbstractCegarLoop]: Abstraction has 4759 states and 6909 transitions. [2024-11-22 20:59:38,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4759 states and 6909 transitions. [2024-11-22 20:59:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 20:59:38,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:38,491 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] [2024-11-22 20:59:38,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 20:59:38,492 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:38,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:38,493 INFO L85 PathProgramCache]: Analyzing trace with hash -420245411, now seen corresponding path program 1 times [2024-11-22 20:59:38,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:38,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92709684] [2024-11-22 20:59:38,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:38,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92709684] [2024-11-22 20:59:38,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92709684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:38,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:38,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:38,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742476878] [2024-11-22 20:59:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:38,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 20:59:38,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:38,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 20:59:38,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:38,750 INFO L87 Difference]: Start difference. First operand 4759 states and 6909 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-11-22 20:59:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:40,028 INFO L93 Difference]: Finished difference Result 4758 states and 6907 transitions. [2024-11-22 20:59:40,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:59:40,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 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 86 [2024-11-22 20:59:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:40,040 INFO L225 Difference]: With dead ends: 4758 [2024-11-22 20:59:40,040 INFO L226 Difference]: Without dead ends: 4758 [2024-11-22 20:59:40,040 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 [2024-11-22 20:59:40,041 INFO L432 NwaCegarLoop]: 2743 mSDtfsCounter, 2 mSDsluCounter, 5744 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8487 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:40,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8487 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 20:59:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4758 states. [2024-11-22 20:59:40,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4758 to 4758. [2024-11-22 20:59:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 4015 states have (on average 1.7068493150684931) internal successors, (6853), 4731 states have internal predecessors, (6853), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 20:59:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6907 transitions. [2024-11-22 20:59:40,107 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6907 transitions. Word has length 86 [2024-11-22 20:59:40,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:40,107 INFO L471 AbstractCegarLoop]: Abstraction has 4758 states and 6907 transitions. [2024-11-22 20:59:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-11-22 20:59:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6907 transitions. [2024-11-22 20:59:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 20:59:40,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:40,109 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] [2024-11-22 20:59:40,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 20:59:40,109 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:40,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:40,109 INFO L85 PathProgramCache]: Analyzing trace with hash -420245410, now seen corresponding path program 1 times [2024-11-22 20:59:40,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:40,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438330395] [2024-11-22 20:59:40,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:40,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:40,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:40,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438330395] [2024-11-22 20:59:40,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438330395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:40,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:40,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:40,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145763567] [2024-11-22 20:59:40,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:40,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 20:59:40,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:40,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 20:59:40,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:40,672 INFO L87 Difference]: Start difference. First operand 4758 states and 6907 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-11-22 20:59:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:42,484 INFO L93 Difference]: Finished difference Result 4757 states and 6905 transitions. [2024-11-22 20:59:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:59:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 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 86 [2024-11-22 20:59:42,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:42,492 INFO L225 Difference]: With dead ends: 4757 [2024-11-22 20:59:42,493 INFO L226 Difference]: Without dead ends: 4757 [2024-11-22 20:59:42,493 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 [2024-11-22 20:59:42,494 INFO L432 NwaCegarLoop]: 2743 mSDtfsCounter, 1 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8461 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:42,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8461 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 20:59:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2024-11-22 20:59:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4757. [2024-11-22 20:59:42,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4757 states, 4013 states have (on average 1.7072015948168453) internal successors, (6851), 4730 states have internal predecessors, (6851), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 20:59:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6905 transitions. [2024-11-22 20:59:42,551 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6905 transitions. Word has length 86 [2024-11-22 20:59:42,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:42,552 INFO L471 AbstractCegarLoop]: Abstraction has 4757 states and 6905 transitions. [2024-11-22 20:59:42,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-11-22 20:59:42,552 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6905 transitions. [2024-11-22 20:59:42,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 20:59:42,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:42,553 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] [2024-11-22 20:59:42,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 20:59:42,553 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:42,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:42,554 INFO L85 PathProgramCache]: Analyzing trace with hash -796304604, now seen corresponding path program 1 times [2024-11-22 20:59:42,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:42,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926380162] [2024-11-22 20:59:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:42,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:42,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:42,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926380162] [2024-11-22 20:59:42,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926380162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:42,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:42,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 20:59:42,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663476778] [2024-11-22 20:59:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:42,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 20:59:42,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 20:59:42,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 20:59:42,809 INFO L87 Difference]: Start difference. First operand 4757 states and 6905 transitions. Second operand has 7 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-22 20:59:44,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:44,331 INFO L93 Difference]: Finished difference Result 4775 states and 6938 transitions. [2024-11-22 20:59:44,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 20:59:44,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 94 [2024-11-22 20:59:44,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:44,344 INFO L225 Difference]: With dead ends: 4775 [2024-11-22 20:59:44,344 INFO L226 Difference]: Without dead ends: 4775 [2024-11-22 20:59:44,345 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 [2024-11-22 20:59:44,345 INFO L432 NwaCegarLoop]: 2707 mSDtfsCounter, 27 mSDsluCounter, 8670 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 11377 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:44,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 11377 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 20:59:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2024-11-22 20:59:44,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4766. [2024-11-22 20:59:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4766 states, 4021 states have (on average 1.7065406615269834) internal successors, (6862), 4737 states have internal predecessors, (6862), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (39), 26 states have call predecessors, (39), 27 states have call successors, (39) [2024-11-22 20:59:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4766 states to 4766 states and 6928 transitions. [2024-11-22 20:59:44,465 INFO L78 Accepts]: Start accepts. Automaton has 4766 states and 6928 transitions. Word has length 94 [2024-11-22 20:59:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:44,465 INFO L471 AbstractCegarLoop]: Abstraction has 4766 states and 6928 transitions. [2024-11-22 20:59:44,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-22 20:59:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 4766 states and 6928 transitions. [2024-11-22 20:59:44,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 20:59:44,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:44,467 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] [2024-11-22 20:59:44,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 20:59:44,467 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:44,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:44,468 INFO L85 PathProgramCache]: Analyzing trace with hash -796304603, now seen corresponding path program 1 times [2024-11-22 20:59:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:44,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575300042] [2024-11-22 20:59:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:44,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:45,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:45,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:45,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575300042] [2024-11-22 20:59:45,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575300042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:45,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:45,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 20:59:45,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669190177] [2024-11-22 20:59:45,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:45,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 20:59:45,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:45,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 20:59:45,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:59:45,030 INFO L87 Difference]: Start difference. First operand 4766 states and 6928 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-22 20:59:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:47,006 INFO L93 Difference]: Finished difference Result 4766 states and 6926 transitions. [2024-11-22 20:59:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:59:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 94 [2024-11-22 20:59:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:47,016 INFO L225 Difference]: With dead ends: 4766 [2024-11-22 20:59:47,016 INFO L226 Difference]: Without dead ends: 4766 [2024-11-22 20:59:47,017 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 [2024-11-22 20:59:47,017 INFO L432 NwaCegarLoop]: 2714 mSDtfsCounter, 22 mSDsluCounter, 8081 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 10795 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:47,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 10795 Invalid, 2901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 20:59:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4766 states. [2024-11-22 20:59:47,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4766 to 4766. [2024-11-22 20:59:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4766 states, 4021 states have (on average 1.706043272817707) internal successors, (6860), 4737 states have internal predecessors, (6860), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (39), 26 states have call predecessors, (39), 27 states have call successors, (39) [2024-11-22 20:59:47,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4766 states to 4766 states and 6926 transitions. [2024-11-22 20:59:47,079 INFO L78 Accepts]: Start accepts. Automaton has 4766 states and 6926 transitions. Word has length 94 [2024-11-22 20:59:47,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:47,080 INFO L471 AbstractCegarLoop]: Abstraction has 4766 states and 6926 transitions. [2024-11-22 20:59:47,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-11-22 20:59:47,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4766 states and 6926 transitions. [2024-11-22 20:59:47,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 20:59:47,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:47,081 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] [2024-11-22 20:59:47,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 20:59:47,081 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:47,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1398690569, now seen corresponding path program 1 times [2024-11-22 20:59:47,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:47,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581171343] [2024-11-22 20:59:47,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:47,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:47,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:47,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581171343] [2024-11-22 20:59:47,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581171343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 20:59:47,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502913280] [2024-11-22 20:59:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:47,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 20:59:47,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 20:59:47,587 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) [2024-11-22 20:59:47,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 20:59:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:47,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 20:59:47,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:47,920 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 [2024-11-22 20:59:48,078 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-22 20:59:48,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-22 20:59:48,112 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 [2024-11-22 20:59:48,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-22 20:59:48,378 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 20:59:48,378 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 [2024-11-22 20:59:48,416 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 [2024-11-22 20:59:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:48,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:48,485 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_661 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_661) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-22 20:59:48,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502913280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 20:59:48,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:59:48,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-22 20:59:48,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682922295] [2024-11-22 20:59:48,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:59:48,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 20:59:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:48,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 20:59:48,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=290, Unknown=1, NotChecked=34, Total=380 [2024-11-22 20:59:48,490 INFO L87 Difference]: Start difference. First operand 4766 states and 6926 transitions. Second operand has 19 states, 16 states have (on average 9.4375) internal successors, (151), 18 states have internal predecessors, (151), 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) [2024-11-22 20:59:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:53,063 INFO L93 Difference]: Finished difference Result 4773 states and 6932 transitions. [2024-11-22 20:59:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 20:59:53,064 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.4375) internal successors, (151), 18 states have internal predecessors, (151), 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 95 [2024-11-22 20:59:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:53,070 INFO L225 Difference]: With dead ends: 4773 [2024-11-22 20:59:53,070 INFO L226 Difference]: Without dead ends: 4773 [2024-11-22 20:59:53,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=427, Unknown=1, NotChecked=42, Total=552 [2024-11-22 20:59:53,071 INFO L432 NwaCegarLoop]: 1891 mSDtfsCounter, 2647 mSDsluCounter, 18696 mSDsCounter, 0 mSdLazyCounter, 9589 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 20587 SdHoareTripleChecker+Invalid, 9616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 9589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:53,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 20587 Invalid, 9616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 9589 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-22 20:59:53,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4773 states. [2024-11-22 20:59:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4773 to 4770. [2024-11-22 20:59:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4770 states, 4025 states have (on average 1.7050931677018633) internal successors, (6863), 4740 states have internal predecessors, (6863), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-22 20:59:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 6919 transitions. [2024-11-22 20:59:53,135 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 6919 transitions. Word has length 95 [2024-11-22 20:59:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:53,136 INFO L471 AbstractCegarLoop]: Abstraction has 4770 states and 6919 transitions. [2024-11-22 20:59:53,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.4375) internal successors, (151), 18 states have internal predecessors, (151), 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) [2024-11-22 20:59:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 6919 transitions. [2024-11-22 20:59:53,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 20:59:53,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:53,137 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] [2024-11-22 20:59:53,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 20:59:53,338 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,SelfDestructingSolverStorable17 [2024-11-22 20:59:53,339 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:53,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:53,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1398690568, now seen corresponding path program 1 times [2024-11-22 20:59:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:53,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380785025] [2024-11-22 20:59:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:53,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:54,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:54,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380785025] [2024-11-22 20:59:54,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380785025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 20:59:54,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776289815] [2024-11-22 20:59:54,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:54,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 20:59:54,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 20:59:54,077 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) [2024-11-22 20:59:54,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 20:59:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:54,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-22 20:59:54,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:54,387 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 [2024-11-22 20:59:54,509 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 20:59:54,510 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 [2024-11-22 20:59:54,517 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 [2024-11-22 20:59:54,531 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 [2024-11-22 20:59:54,538 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 [2024-11-22 20:59:54,607 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 [2024-11-22 20:59:54,612 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 [2024-11-22 20:59:54,718 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 20:59:54,719 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 [2024-11-22 20:59:54,725 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 [2024-11-22 20:59:54,757 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 [2024-11-22 20:59:54,762 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 [2024-11-22 20:59:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:54,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:54,855 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_805 (Array Int Int)) (v_ArrVal_804 (Array Int Int))) (<= (+ 20 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_805) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_804) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_805 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_805) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-22 20:59:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776289815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 20:59:54,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:59:54,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 14 [2024-11-22 20:59:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437522742] [2024-11-22 20:59:54,859 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:59:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 20:59:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:54,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 20:59:54,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=225, Unknown=1, NotChecked=30, Total=306 [2024-11-22 20:59:54,861 INFO L87 Difference]: Start difference. First operand 4770 states and 6919 transitions. Second operand has 15 states, 12 states have (on average 12.083333333333334) internal successors, (145), 15 states have internal predecessors, (145), 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) [2024-11-22 20:59:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:58,990 INFO L93 Difference]: Finished difference Result 4772 states and 6930 transitions. [2024-11-22 20:59:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 20:59:58,991 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 12.083333333333334) internal successors, (145), 15 states have internal predecessors, (145), 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 95 [2024-11-22 20:59:58,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:58,997 INFO L225 Difference]: With dead ends: 4772 [2024-11-22 20:59:58,997 INFO L226 Difference]: Without dead ends: 4772 [2024-11-22 20:59:58,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=345, Unknown=1, NotChecked=38, Total=462 [2024-11-22 20:59:58,998 INFO L432 NwaCegarLoop]: 1897 mSDtfsCounter, 2662 mSDsluCounter, 11266 mSDsCounter, 0 mSdLazyCounter, 8848 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 13163 SdHoareTripleChecker+Invalid, 8892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 8848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:58,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 13163 Invalid, 8892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 8848 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-22 20:59:59,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4772 states. [2024-11-22 20:59:59,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4772 to 4760. [2024-11-22 20:59:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4760 states, 4017 states have (on average 1.7057505601194922) internal successors, (6852), 4732 states have internal predecessors, (6852), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 20:59:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4760 states to 4760 states and 6906 transitions. [2024-11-22 20:59:59,057 INFO L78 Accepts]: Start accepts. Automaton has 4760 states and 6906 transitions. Word has length 95 [2024-11-22 20:59:59,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:59,058 INFO L471 AbstractCegarLoop]: Abstraction has 4760 states and 6906 transitions. [2024-11-22 20:59:59,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 12.083333333333334) internal successors, (145), 15 states have internal predecessors, (145), 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) [2024-11-22 20:59:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4760 states and 6906 transitions. [2024-11-22 20:59:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 20:59:59,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:59,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:59,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 20:59:59,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 20:59:59,260 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 20:59:59,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:59,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1605417604, now seen corresponding path program 1 times [2024-11-22 20:59:59,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 20:59:59,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314165575] [2024-11-22 20:59:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:59,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 20:59:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:59,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 20:59:59,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314165575] [2024-11-22 20:59:59,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314165575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:59,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:59,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 20:59:59,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36901049] [2024-11-22 20:59:59,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:59,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 20:59:59,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 20:59:59,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 20:59:59,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-22 20:59:59,763 INFO L87 Difference]: Start difference. First operand 4760 states and 6906 transitions. Second operand has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 21:00:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:00:03,085 INFO L93 Difference]: Finished difference Result 4779 states and 6938 transitions. [2024-11-22 21:00:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 21:00:03,086 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-11-22 21:00:03,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:00:03,094 INFO L225 Difference]: With dead ends: 4779 [2024-11-22 21:00:03,094 INFO L226 Difference]: Without dead ends: 4779 [2024-11-22 21:00:03,094 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 [2024-11-22 21:00:03,095 INFO L432 NwaCegarLoop]: 1891 mSDtfsCounter, 2685 mSDsluCounter, 14967 mSDsCounter, 0 mSdLazyCounter, 7872 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 16858 SdHoareTripleChecker+Invalid, 7896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-22 21:00:03,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2703 Valid, 16858 Invalid, 7896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 7872 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-22 21:00:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2024-11-22 21:00:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4775. [2024-11-22 21:00:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4775 states, 4031 states have (on average 1.7040436616224262) internal successors, (6869), 4745 states have internal predecessors, (6869), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-22 21:00:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4775 states to 4775 states and 6925 transitions. [2024-11-22 21:00:03,163 INFO L78 Accepts]: Start accepts. Automaton has 4775 states and 6925 transitions. Word has length 97 [2024-11-22 21:00:03,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:00:03,163 INFO L471 AbstractCegarLoop]: Abstraction has 4775 states and 6925 transitions. [2024-11-22 21:00:03,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 21:00:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand 4775 states and 6925 transitions. [2024-11-22 21:00:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 21:00:03,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:00:03,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:00:03,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 21:00:03,165 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 21:00:03,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:00:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1605417603, now seen corresponding path program 1 times [2024-11-22 21:00:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:00:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802851553] [2024-11-22 21:00:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:03,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:00:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:03,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:00:03,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802851553] [2024-11-22 21:00:03,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802851553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:00:03,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:00:03,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 21:00:03,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432405350] [2024-11-22 21:00:03,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:00:03,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 21:00:03,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:00:03,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 21:00:03,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 21:00:03,861 INFO L87 Difference]: Start difference. First operand 4775 states and 6925 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 21:00:07,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:00:07,810 INFO L93 Difference]: Finished difference Result 4778 states and 6936 transitions. [2024-11-22 21:00:07,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:00:07,810 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-11-22 21:00:07,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:00:07,820 INFO L225 Difference]: With dead ends: 4778 [2024-11-22 21:00:07,821 INFO L226 Difference]: Without dead ends: 4778 [2024-11-22 21:00:07,821 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 [2024-11-22 21:00:07,822 INFO L432 NwaCegarLoop]: 1898 mSDtfsCounter, 2680 mSDsluCounter, 11598 mSDsCounter, 0 mSdLazyCounter, 8369 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 13496 SdHoareTripleChecker+Invalid, 8391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 8369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-22 21:00:07,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 13496 Invalid, 8391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 8369 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-22 21:00:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2024-11-22 21:00:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 4775. [2024-11-22 21:00:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4775 states, 4031 states have (on average 1.7035475068221284) internal successors, (6867), 4745 states have internal predecessors, (6867), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-22 21:00:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4775 states to 4775 states and 6923 transitions. [2024-11-22 21:00:07,913 INFO L78 Accepts]: Start accepts. Automaton has 4775 states and 6923 transitions. Word has length 97 [2024-11-22 21:00:07,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:00:07,914 INFO L471 AbstractCegarLoop]: Abstraction has 4775 states and 6923 transitions. [2024-11-22 21:00:07,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 21:00:07,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4775 states and 6923 transitions. [2024-11-22 21:00:07,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 21:00:07,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:00:07,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:00:07,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 21:00:07,916 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 21:00:07,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:00:07,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1382629065, now seen corresponding path program 1 times [2024-11-22 21:00:07,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:00:07,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130260497] [2024-11-22 21:00:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:07,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:00:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:08,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:00:08,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130260497] [2024-11-22 21:00:08,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130260497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:00:08,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282910030] [2024-11-22 21:00:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:08,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:00:08,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:00:08,510 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) [2024-11-22 21:00:08,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 21:00:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:08,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 21:00:08,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:00:08,837 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 [2024-11-22 21:00:08,936 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-22 21:00:08,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-22 21:00:08,962 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 [2024-11-22 21:00:09,037 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 [2024-11-22 21:00:09,170 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 21:00:09,171 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 [2024-11-22 21:00:09,255 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 21:00:09,255 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 [2024-11-22 21:00:09,270 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 [2024-11-22 21:00:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:09,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:00:09,395 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1089 (Array Int Int)) (v_ArrVal_1086 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1089))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1086)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-22 21:00:09,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282910030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:00:09,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 21:00:09,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-22 21:00:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924390356] [2024-11-22 21:00:09,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 21:00:09,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 21:00:09,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:00:09,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 21:00:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=460, Unknown=14, NotChecked=44, Total=600 [2024-11-22 21:00:09,402 INFO L87 Difference]: Start difference. First operand 4775 states and 6923 transitions. Second operand has 22 states, 19 states have (on average 8.263157894736842) internal successors, (157), 21 states have internal predecessors, (157), 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) [2024-11-22 21:00:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:00:14,276 INFO L93 Difference]: Finished difference Result 4777 states and 6934 transitions. [2024-11-22 21:00:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 21:00:14,277 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.263157894736842) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2024-11-22 21:00:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:00:14,283 INFO L225 Difference]: With dead ends: 4777 [2024-11-22 21:00:14,283 INFO L226 Difference]: Without dead ends: 4777 [2024-11-22 21:00:14,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=588, Unknown=14, NotChecked=50, Total=756 [2024-11-22 21:00:14,284 INFO L432 NwaCegarLoop]: 1890 mSDtfsCounter, 2640 mSDsluCounter, 22384 mSDsCounter, 0 mSdLazyCounter, 11395 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 24274 SdHoareTripleChecker+Invalid, 11418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 11395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-22 21:00:14,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 24274 Invalid, 11418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 11395 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-22 21:00:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2024-11-22 21:00:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4774. [2024-11-22 21:00:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 4031 states have (on average 1.7030513520218309) internal successors, (6865), 4744 states have internal predecessors, (6865), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-22 21:00:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 6921 transitions. [2024-11-22 21:00:14,338 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 6921 transitions. Word has length 98 [2024-11-22 21:00:14,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:00:14,339 INFO L471 AbstractCegarLoop]: Abstraction has 4774 states and 6921 transitions. [2024-11-22 21:00:14,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.263157894736842) internal successors, (157), 21 states have internal predecessors, (157), 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) [2024-11-22 21:00:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 6921 transitions. [2024-11-22 21:00:14,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 21:00:14,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:00:14,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:00:14,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 21:00:14,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:00:14,541 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 21:00:14,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:00:14,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1382629066, now seen corresponding path program 1 times [2024-11-22 21:00:14,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:00:14,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416702727] [2024-11-22 21:00:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:00:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:15,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:00:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416702727] [2024-11-22 21:00:15,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416702727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:00:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278675149] [2024-11-22 21:00:15,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:15,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:00:15,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:00:15,381 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) [2024-11-22 21:00:15,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 21:00:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:15,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-22 21:00:15,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:00:15,700 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 [2024-11-22 21:00:15,805 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 [2024-11-22 21:00:15,812 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 21:00:15,813 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 [2024-11-22 21:00:15,839 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 [2024-11-22 21:00:15,843 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 [2024-11-22 21:00:15,916 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 [2024-11-22 21:00:15,920 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 [2024-11-22 21:00:16,014 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 21:00:16,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-22 21:00:16,031 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 [2024-11-22 21:00:16,107 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 21:00:16,107 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 [2024-11-22 21:00:16,113 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 [2024-11-22 21:00:16,131 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 [2024-11-22 21:00:16,136 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 [2024-11-22 21:00:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:16,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:00:16,281 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1241 (Array Int Int)) (v_ArrVal_1240 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1240) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1241) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1240 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1240) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4)))))) is different from false [2024-11-22 21:00:16,338 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1247 (Array Int Int)) (v_ArrVal_1246 (Array Int Int)) (v_ArrVal_1240 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1246) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1247) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1240) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4))) (forall ((v_ArrVal_1247 (Array Int Int)) (v_ArrVal_1246 (Array Int Int)) (v_ArrVal_1241 (Array Int Int)) (v_ArrVal_1240 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1247))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1246) .cse1 v_ArrVal_1240) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1241) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))) is different from false [2024-11-22 21:00:16,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278675149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:00:16,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 21:00:16,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-22 21:00:16,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342054081] [2024-11-22 21:00:16,341 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 21:00:16,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 21:00:16,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:00:16,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 21:00:16,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=422, Unknown=17, NotChecked=86, Total=600 [2024-11-22 21:00:16,342 INFO L87 Difference]: Start difference. First operand 4774 states and 6921 transitions. Second operand has 20 states, 17 states have (on average 9.235294117647058) internal successors, (157), 20 states have internal predecessors, (157), 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) [2024-11-22 21:00:20,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:00:20,506 INFO L93 Difference]: Finished difference Result 4776 states and 6932 transitions. [2024-11-22 21:00:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 21:00:20,507 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 9.235294117647058) internal successors, (157), 20 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2024-11-22 21:00:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:00:20,512 INFO L225 Difference]: With dead ends: 4776 [2024-11-22 21:00:20,513 INFO L226 Difference]: Without dead ends: 4776 [2024-11-22 21:00:20,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=627, Unknown=18, NotChecked=106, Total=870 [2024-11-22 21:00:20,513 INFO L432 NwaCegarLoop]: 1896 mSDtfsCounter, 2649 mSDsluCounter, 13480 mSDsCounter, 0 mSdLazyCounter, 9324 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 15376 SdHoareTripleChecker+Invalid, 9352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 9324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-22 21:00:20,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 15376 Invalid, 9352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 9324 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-22 21:00:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2024-11-22 21:00:20,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 4758. [2024-11-22 21:00:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 4017 states have (on average 1.704754792133433) internal successors, (6848), 4730 states have internal predecessors, (6848), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 21:00:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6902 transitions. [2024-11-22 21:00:20,565 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6902 transitions. Word has length 98 [2024-11-22 21:00:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:00:20,565 INFO L471 AbstractCegarLoop]: Abstraction has 4758 states and 6902 transitions. [2024-11-22 21:00:20,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 9.235294117647058) internal successors, (157), 20 states have internal predecessors, (157), 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) [2024-11-22 21:00:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6902 transitions. [2024-11-22 21:00:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 21:00:20,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:00:20,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:00:20,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 21:00:20,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:00:20,770 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 21:00:20,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:00:20,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1760638795, now seen corresponding path program 1 times [2024-11-22 21:00:20,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:00:20,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422754783] [2024-11-22 21:00:20,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:20,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:00:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:21,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:00:21,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422754783] [2024-11-22 21:00:21,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422754783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:00:21,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:00:21,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 21:00:21,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252149219] [2024-11-22 21:00:21,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:00:21,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 21:00:21,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:00:21,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 21:00:21,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-22 21:00:21,349 INFO L87 Difference]: Start difference. First operand 4758 states and 6902 transitions. Second operand has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 21:00:24,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:00:24,877 INFO L93 Difference]: Finished difference Result 4783 states and 6940 transitions. [2024-11-22 21:00:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 21:00:24,877 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2024-11-22 21:00:24,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:00:24,883 INFO L225 Difference]: With dead ends: 4783 [2024-11-22 21:00:24,883 INFO L226 Difference]: Without dead ends: 4783 [2024-11-22 21:00:24,884 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 [2024-11-22 21:00:24,884 INFO L432 NwaCegarLoop]: 1890 mSDtfsCounter, 2670 mSDsluCounter, 16823 mSDsCounter, 0 mSdLazyCounter, 8710 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 18713 SdHoareTripleChecker+Invalid, 8734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 8710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-22 21:00:24,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 18713 Invalid, 8734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 8710 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-22 21:00:24,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2024-11-22 21:00:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4779. [2024-11-22 21:00:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4779 states, 4037 states have (on average 1.7020064404260589) internal successors, (6871), 4749 states have internal predecessors, (6871), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2024-11-22 21:00:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 6927 transitions. [2024-11-22 21:00:24,941 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 6927 transitions. Word has length 100 [2024-11-22 21:00:24,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:00:24,942 INFO L471 AbstractCegarLoop]: Abstraction has 4779 states and 6927 transitions. [2024-11-22 21:00:24,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 21:00:24,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 6927 transitions. [2024-11-22 21:00:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 21:00:24,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:00:24,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:00:24,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 21:00:24,943 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2024-11-22 21:00:24,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:00:24,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1760638796, now seen corresponding path program 1 times [2024-11-22 21:00:24,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:00:24,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482622131] [2024-11-22 21:00:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:00:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:00:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:00:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:00:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:00:25,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482622131] [2024-11-22 21:00:25,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482622131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:00:25,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:00:25,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 21:00:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952336307] [2024-11-22 21:00:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:00:25,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 21:00:25,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:00:25,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 21:00:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-22 21:00:25,732 INFO L87 Difference]: Start difference. First operand 4779 states and 6927 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)