./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:15:08,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:15:08,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 06:15:08,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:15:08,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:15:08,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:15:08,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:15:08,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:15:08,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 06:15:08,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 06:15:08,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:15:08,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:15:08,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:15:08,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:15:08,645 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:15:08,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:15:08,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:15:08,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:15:08,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:15:08,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:15:08,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:15:08,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:15:08,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:15:08,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:15:08,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:15:08,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:15:08,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:15:08,654 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:15:08,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:15:08,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:15:08,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:15:08,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:15:08,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:15:08,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:15:08,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:15:08,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:15:08,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:15:08,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:15:08,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:15:08,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:15:08,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:15:08,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:15:08,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2024-11-09 06:15:08,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:15:08,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:15:08,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:15:08,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:15:08,963 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:15:08,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2024-11-09 06:15:10,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:15:10,753 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:15:10,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2024-11-09 06:15:10,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31f0d39e/842acf13fb164e17b14577ec09077cf9/FLAGf842b0d73 [2024-11-09 06:15:10,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31f0d39e/842acf13fb164e17b14577ec09077cf9 [2024-11-09 06:15:10,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:15:10,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:15:10,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:15:10,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:15:10,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:15:10,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:15:10" (1/1) ... [2024-11-09 06:15:10,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5a4671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:10, skipping insertion in model container [2024-11-09 06:15:10,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:15:10" (1/1) ... [2024-11-09 06:15:10,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:15:11,383 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2024-11-09 06:15:11,604 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2024-11-09 06:15:11,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:15:11,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:15:11,695 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2024-11-09 06:15:11,799 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2024-11-09 06:15:11,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:15:11,853 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:15:11,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11 WrapperNode [2024-11-09 06:15:11,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:15:11,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:15:11,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:15:11,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:15:11,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:11,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,007 INFO L138 Inliner]: procedures = 177, calls = 472, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2351 [2024-11-09 06:15:12,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:15:12,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:15:12,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:15:12,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:15:12,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,208 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2024-11-09 06:15:12,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:15:12,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:15:12,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:15:12,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:15:12,356 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (1/1) ... [2024-11-09 06:15:12,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:15:12,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:15:12,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:15:12,396 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 [2024-11-09 06:15:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 06:15:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 06:15:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 06:15:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:15:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:15:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 06:15:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 06:15:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 06:15:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 06:15:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 06:15:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 06:15:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 06:15:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 06:15:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 06:15:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 06:15:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:15:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 06:15:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 06:15:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 06:15:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:15:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:15:12,744 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:15:12,746 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:15:14,759 INFO L? ?]: Removed 526 outVars from TransFormulas that were not future-live. [2024-11-09 06:15:14,760 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:15:14,797 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:15:14,800 INFO L316 CfgBuilder]: Removed 100 assume(true) statements. [2024-11-09 06:15:14,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:15:14 BoogieIcfgContainer [2024-11-09 06:15:14,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:15:14,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:15:14,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:15:14,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:15:14,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:15:10" (1/3) ... [2024-11-09 06:15:14,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191433a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:15:14, skipping insertion in model container [2024-11-09 06:15:14,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:15:11" (2/3) ... [2024-11-09 06:15:14,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191433a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:15:14, skipping insertion in model container [2024-11-09 06:15:14,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:15:14" (3/3) ... [2024-11-09 06:15:14,809 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-3.i [2024-11-09 06:15:14,826 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:15:14,826 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:15:14,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:15:14,946 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=LoopHeads, 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;@744e996c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:15:14,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:15:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 631 states, 615 states have (on average 1.6260162601626016) internal successors, (1000), 622 states have internal predecessors, (1000), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:15:14,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:15:14,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:14,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:14,967 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:14,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:14,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1010421804, now seen corresponding path program 1 times [2024-11-09 06:15:14,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:14,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814444107] [2024-11-09 06:15:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:14,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:15,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:15:15,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:15,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814444107] [2024-11-09 06:15:15,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814444107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:15,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:15,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:15:15,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314971126] [2024-11-09 06:15:15,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:15,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:15:15,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:15,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:15:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:15:15,174 INFO L87 Difference]: Start difference. First operand has 631 states, 615 states have (on average 1.6260162601626016) internal successors, (1000), 622 states have internal predecessors, (1000), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:15,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:15,267 INFO L93 Difference]: Finished difference Result 1260 states and 2047 transitions. [2024-11-09 06:15:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:15:15,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:15:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:15,291 INFO L225 Difference]: With dead ends: 1260 [2024-11-09 06:15:15,293 INFO L226 Difference]: Without dead ends: 565 [2024-11-09 06:15:15,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:15:15,305 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:15,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:15:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-09 06:15:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2024-11-09 06:15:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 550 states have (on average 1.4581818181818182) internal successors, (802), 556 states have internal predecessors, (802), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:15:15,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 824 transitions. [2024-11-09 06:15:15,393 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 824 transitions. Word has length 8 [2024-11-09 06:15:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:15,394 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 824 transitions. [2024-11-09 06:15:15,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 824 transitions. [2024-11-09 06:15:15,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 06:15:15,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:15,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:15,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:15:15,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:15,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash 76912623, now seen corresponding path program 1 times [2024-11-09 06:15:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:15,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516808782] [2024-11-09 06:15:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:15:15,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:15,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516808782] [2024-11-09 06:15:15,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516808782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:15,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:15,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:15:15,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873002067] [2024-11-09 06:15:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:15,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:15:15,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:15,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:15:15,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:15:15,668 INFO L87 Difference]: Start difference. First operand 565 states and 824 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:15,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:15,757 INFO L93 Difference]: Finished difference Result 1292 states and 1895 transitions. [2024-11-09 06:15:15,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:15:15,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-09 06:15:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:15,765 INFO L225 Difference]: With dead ends: 1292 [2024-11-09 06:15:15,765 INFO L226 Difference]: Without dead ends: 1117 [2024-11-09 06:15:15,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:15:15,768 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 787 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:15,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1680 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:15:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-11-09 06:15:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 566. [2024-11-09 06:15:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 551 states have (on average 1.4573502722323048) internal successors, (803), 557 states have internal predecessors, (803), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:15:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 825 transitions. [2024-11-09 06:15:15,805 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 825 transitions. Word has length 62 [2024-11-09 06:15:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:15,806 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 825 transitions. [2024-11-09 06:15:15,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 825 transitions. [2024-11-09 06:15:15,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 06:15:15,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:15,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:15,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:15:15,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:15,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash 41978054, now seen corresponding path program 1 times [2024-11-09 06:15:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931210565] [2024-11-09 06:15:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:15:16,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931210565] [2024-11-09 06:15:16,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931210565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:16,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:16,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:15:16,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693258611] [2024-11-09 06:15:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:16,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:15:16,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:16,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:15:16,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:15:16,449 INFO L87 Difference]: Start difference. First operand 566 states and 825 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:16,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:16,547 INFO L93 Difference]: Finished difference Result 1132 states and 1650 transitions. [2024-11-09 06:15:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:15:16,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 208 [2024-11-09 06:15:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:16,552 INFO L225 Difference]: With dead ends: 1132 [2024-11-09 06:15:16,553 INFO L226 Difference]: Without dead ends: 569 [2024-11-09 06:15:16,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:15:16,556 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 105 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:16,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2295 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:15:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-09 06:15:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 566. [2024-11-09 06:15:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 551 states have (on average 1.4446460980036298) internal successors, (796), 557 states have internal predecessors, (796), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:15:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 818 transitions. [2024-11-09 06:15:16,579 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 818 transitions. Word has length 208 [2024-11-09 06:15:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:16,579 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 818 transitions. [2024-11-09 06:15:16,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 818 transitions. [2024-11-09 06:15:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 06:15:16,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:16,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:16,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:15:16,587 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:16,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1497571398, now seen corresponding path program 1 times [2024-11-09 06:15:16,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:16,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618174407] [2024-11-09 06:15:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:16,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:15:16,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:16,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618174407] [2024-11-09 06:15:16,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618174407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:16,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:16,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:15:16,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079072338] [2024-11-09 06:15:16,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:16,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:15:16,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:16,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:15:16,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:15:16,937 INFO L87 Difference]: Start difference. First operand 566 states and 818 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:17,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:17,026 INFO L93 Difference]: Finished difference Result 1258 states and 1822 transitions. [2024-11-09 06:15:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:15:17,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 208 [2024-11-09 06:15:17,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:17,032 INFO L225 Difference]: With dead ends: 1258 [2024-11-09 06:15:17,032 INFO L226 Difference]: Without dead ends: 695 [2024-11-09 06:15:17,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:15:17,034 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 134 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:17,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1625 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:15:17,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-09 06:15:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2024-11-09 06:15:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 680 states have (on average 1.4470588235294117) internal successors, (984), 686 states have internal predecessors, (984), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:15:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1006 transitions. [2024-11-09 06:15:17,056 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1006 transitions. Word has length 208 [2024-11-09 06:15:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:17,057 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 1006 transitions. [2024-11-09 06:15:17,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:15:17,058 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1006 transitions. [2024-11-09 06:15:17,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-09 06:15:17,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:17,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:17,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:15:17,062 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:17,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:17,062 INFO L85 PathProgramCache]: Analyzing trace with hash -398690799, now seen corresponding path program 1 times [2024-11-09 06:15:17,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:17,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939865891] [2024-11-09 06:15:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:17,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:17,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 06:15:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:17,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 06:15:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:15:17,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:17,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939865891] [2024-11-09 06:15:17,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939865891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:17,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:17,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:15:17,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863127902] [2024-11-09 06:15:17,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:17,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:15:17,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:17,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:15:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:15:17,680 INFO L87 Difference]: Start difference. First operand 695 states and 1006 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:15:18,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:18,344 INFO L93 Difference]: Finished difference Result 1219 states and 1764 transitions. [2024-11-09 06:15:18,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:15:18,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 223 [2024-11-09 06:15:18,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:18,350 INFO L225 Difference]: With dead ends: 1219 [2024-11-09 06:15:18,351 INFO L226 Difference]: Without dead ends: 656 [2024-11-09 06:15:18,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:15:18,353 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 38 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:18,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2699 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:15:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-09 06:15:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 653. [2024-11-09 06:15:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 638 states have (on average 1.421630094043887) internal successors, (907), 644 states have internal predecessors, (907), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:15:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 929 transitions. [2024-11-09 06:15:18,378 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 929 transitions. Word has length 223 [2024-11-09 06:15:18,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:18,379 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 929 transitions. [2024-11-09 06:15:18,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:15:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 929 transitions. [2024-11-09 06:15:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-09 06:15:18,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:18,384 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:18,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:15:18,385 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:18,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:18,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1100880029, now seen corresponding path program 1 times [2024-11-09 06:15:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:18,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667631076] [2024-11-09 06:15:18,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:18,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 06:15:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:18,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 06:15:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:15:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:18,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667631076] [2024-11-09 06:15:18,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667631076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:18,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:18,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:15:18,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497661399] [2024-11-09 06:15:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:18,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:15:18,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:15:18,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:15:18,846 INFO L87 Difference]: Start difference. First operand 653 states and 929 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:15:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:19,318 INFO L93 Difference]: Finished difference Result 1470 states and 2101 transitions. [2024-11-09 06:15:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:15:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 223 [2024-11-09 06:15:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:19,328 INFO L225 Difference]: With dead ends: 1470 [2024-11-09 06:15:19,329 INFO L226 Difference]: Without dead ends: 949 [2024-11-09 06:15:19,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:15:19,333 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 463 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:19,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 2443 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:15:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-09 06:15:19,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 944. [2024-11-09 06:15:19,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 921 states have (on average 1.4223669923995657) internal successors, (1310), 932 states have internal predecessors, (1310), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 06:15:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1348 transitions. [2024-11-09 06:15:19,421 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1348 transitions. Word has length 223 [2024-11-09 06:15:19,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:19,422 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1348 transitions. [2024-11-09 06:15:19,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:15:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1348 transitions. [2024-11-09 06:15:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-09 06:15:19,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:19,427 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:19,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:15:19,428 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:19,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:19,428 INFO L85 PathProgramCache]: Analyzing trace with hash -13530464, now seen corresponding path program 1 times [2024-11-09 06:15:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:19,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770116690] [2024-11-09 06:15:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:19,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:20,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 06:15:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:20,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 06:15:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:20,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 06:15:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:20,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 06:15:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:20,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:20,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770116690] [2024-11-09 06:15:20,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770116690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:15:20,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011493830] [2024-11-09 06:15:20,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:20,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:20,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:15:20,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:15:20,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:15:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:20,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:15:20,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:15:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 06:15:20,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:15:20,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011493830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:20,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:15:20,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 06:15:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219819175] [2024-11-09 06:15:20,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:20,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:15:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:15:20,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:15:20,772 INFO L87 Difference]: Start difference. First operand 944 states and 1348 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:15:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:20,866 INFO L93 Difference]: Finished difference Result 1303 states and 1888 transitions. [2024-11-09 06:15:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:15:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 238 [2024-11-09 06:15:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:20,874 INFO L225 Difference]: With dead ends: 1303 [2024-11-09 06:15:20,874 INFO L226 Difference]: Without dead ends: 984 [2024-11-09 06:15:20,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:15:20,877 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 8 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:20,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1413 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:15:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-09 06:15:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 984. [2024-11-09 06:15:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 961 states have (on average 1.4047866805411031) internal successors, (1350), 972 states have internal predecessors, (1350), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 06:15:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1388 transitions. [2024-11-09 06:15:20,912 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1388 transitions. Word has length 238 [2024-11-09 06:15:20,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:20,914 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1388 transitions. [2024-11-09 06:15:20,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:15:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1388 transitions. [2024-11-09 06:15:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-09 06:15:20,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:20,918 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:20,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:15:21,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:21,124 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:21,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:21,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1358276834, now seen corresponding path program 1 times [2024-11-09 06:15:21,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:21,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542631517] [2024-11-09 06:15:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:21,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:21,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 06:15:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:21,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 06:15:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:21,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 06:15:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:21,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 06:15:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:21,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:21,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542631517] [2024-11-09 06:15:21,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542631517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:15:21,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568180016] [2024-11-09 06:15:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:21,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:21,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:15:21,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:15:21,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:15:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:22,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:15:22,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:15:22,316 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 06:15:22,317 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:15:22,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568180016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:22,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:15:22,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-09 06:15:22,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574030914] [2024-11-09 06:15:22,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:22,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:15:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:15:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:15:22,320 INFO L87 Difference]: Start difference. First operand 984 states and 1388 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:15:22,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:22,422 INFO L93 Difference]: Finished difference Result 1315 states and 1880 transitions. [2024-11-09 06:15:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:15:22,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 238 [2024-11-09 06:15:22,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:22,428 INFO L225 Difference]: With dead ends: 1315 [2024-11-09 06:15:22,429 INFO L226 Difference]: Without dead ends: 956 [2024-11-09 06:15:22,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:15:22,431 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 105 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:22,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2025 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:15:22,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-09 06:15:22,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 956. [2024-11-09 06:15:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 933 states have (on average 1.4019292604501608) internal successors, (1308), 944 states have internal predecessors, (1308), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 06:15:22,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1346 transitions. [2024-11-09 06:15:22,461 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1346 transitions. Word has length 238 [2024-11-09 06:15:22,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:22,461 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1346 transitions. [2024-11-09 06:15:22,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:15:22,462 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1346 transitions. [2024-11-09 06:15:22,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-09 06:15:22,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:22,465 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:22,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:15:22,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 06:15:22,671 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:22,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1185044588, now seen corresponding path program 1 times [2024-11-09 06:15:22,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:22,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489538941] [2024-11-09 06:15:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:23,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 06:15:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:23,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 06:15:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:23,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 06:15:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:23,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 06:15:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:23,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489538941] [2024-11-09 06:15:23,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489538941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:15:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233843679] [2024-11-09 06:15:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:23,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:15:23,172 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) [2024-11-09 06:15:23,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:15:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:23,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:15:23,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:15:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:24,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:15:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:24,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233843679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:15:24,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:15:24,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-09 06:15:24,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925693340] [2024-11-09 06:15:24,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:15:24,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:15:24,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:24,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:15:24,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:15:24,405 INFO L87 Difference]: Start difference. First operand 956 states and 1346 transitions. Second operand has 8 states, 8 states have (on average 67.125) internal successors, (537), 7 states have internal predecessors, (537), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 06:15:25,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:25,014 INFO L93 Difference]: Finished difference Result 2554 states and 3639 transitions. [2024-11-09 06:15:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:15:25,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 67.125) internal successors, (537), 7 states have internal predecessors, (537), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 238 [2024-11-09 06:15:25,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:25,027 INFO L225 Difference]: With dead ends: 2554 [2024-11-09 06:15:25,028 INFO L226 Difference]: Without dead ends: 2222 [2024-11-09 06:15:25,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:15:25,032 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 3196 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3243 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:25,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3243 Valid, 3724 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:15:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2024-11-09 06:15:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1703. [2024-11-09 06:15:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1665 states have (on average 1.3867867867867867) internal successors, (2309), 1676 states have internal predecessors, (2309), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 26 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 06:15:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2377 transitions. [2024-11-09 06:15:25,097 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2377 transitions. Word has length 238 [2024-11-09 06:15:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:25,098 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 2377 transitions. [2024-11-09 06:15:25,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.125) internal successors, (537), 7 states have internal predecessors, (537), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 06:15:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2377 transitions. [2024-11-09 06:15:25,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2024-11-09 06:15:25,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:25,117 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:25,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:15:25,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:25,323 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:25,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1088483481, now seen corresponding path program 1 times [2024-11-09 06:15:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:25,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588872801] [2024-11-09 06:15:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:27,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 06:15:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:27,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 06:15:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:27,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 06:15:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:27,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 06:15:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 4 proven. 534 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-09 06:15:27,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:15:27,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588872801] [2024-11-09 06:15:27,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588872801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:15:27,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990028846] [2024-11-09 06:15:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:27,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:27,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:15:27,404 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) [2024-11-09 06:15:27,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:15:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:28,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:15:28,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:15:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:29,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:15:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:15:30,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990028846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:15:30,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:15:30,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-09 06:15:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268915744] [2024-11-09 06:15:30,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:15:30,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:15:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:15:30,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:15:30,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:15:30,373 INFO L87 Difference]: Start difference. First operand 1703 states and 2377 transitions. Second operand has 17 states, 17 states have (on average 98.17647058823529) internal successors, (1669), 16 states have internal predecessors, (1669), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 06:15:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:40,832 INFO L93 Difference]: Finished difference Result 16930 states and 24075 transitions. [2024-11-09 06:15:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-09 06:15:40,837 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 98.17647058823529) internal successors, (1669), 16 states have internal predecessors, (1669), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 676 [2024-11-09 06:15:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:40,917 INFO L225 Difference]: With dead ends: 16930 [2024-11-09 06:15:40,917 INFO L226 Difference]: Without dead ends: 15847 [2024-11-09 06:15:40,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1349 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1242, Invalid=3728, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 06:15:40,931 INFO L432 NwaCegarLoop]: 1707 mSDtfsCounter, 37145 mSDsluCounter, 17004 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37145 SdHoareTripleChecker+Valid, 18711 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:40,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37145 Valid, 18711 Invalid, 3553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [588 Valid, 2965 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 06:15:40,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15847 states. [2024-11-09 06:15:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15847 to 9399. [2024-11-09 06:15:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9399 states, 9269 states have (on average 1.3837522925881973) internal successors, (12826), 9285 states have internal predecessors, (12826), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 114 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-09 06:15:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9399 states to 9399 states and 13078 transitions. [2024-11-09 06:15:41,542 INFO L78 Accepts]: Start accepts. Automaton has 9399 states and 13078 transitions. Word has length 676 [2024-11-09 06:15:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:41,543 INFO L471 AbstractCegarLoop]: Abstraction has 9399 states and 13078 transitions. [2024-11-09 06:15:41,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 98.17647058823529) internal successors, (1669), 16 states have internal predecessors, (1669), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 06:15:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 9399 states and 13078 transitions. [2024-11-09 06:15:41,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1563 [2024-11-09 06:15:41,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:41,633 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:41,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:15:41,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:41,835 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:41,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:41,836 INFO L85 PathProgramCache]: Analyzing trace with hash 547115351, now seen corresponding path program 1 times [2024-11-09 06:15:41,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:15:41,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673538842] [2024-11-09 06:15:41,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:41,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms