./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.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 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:08:42,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:08:42,076 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 13:08:42,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:08:42,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:08:42,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:08:42,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:08:42,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:08:42,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 13:08:42,113 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 13:08:42,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:08:42,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:08:42,114 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:08:42,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:08:42,116 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:08:42,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:08:42,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:08:42,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:08:42,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:08:42,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:08:42,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:08:42,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:08:42,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:08:42,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:08:42,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:08:42,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:08:42,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:08:42,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:08:42,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:08:42,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:08:42,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 13:08:42,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:08:42,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:08:42,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:08:42,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:08:42,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:08:42,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:08:42,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:08:42,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:08:42,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:08:42,124 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:08:42,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:08:42,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2024-11-20 13:08:42,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:08:42,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:08:42,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:08:42,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:08:42,398 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:08:42,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i [2024-11-20 13:08:43,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:08:44,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:08:44,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i [2024-11-20 13:08:44,111 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4322d8807/d91d6f721c0844a08fb60432e3c1e2f3/FLAG9617a1e30 [2024-11-20 13:08:44,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4322d8807/d91d6f721c0844a08fb60432e3c1e2f3 [2024-11-20 13:08:44,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:08:44,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:08:44,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:08:44,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:08:44,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:08:44,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:44,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b343e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44, skipping insertion in model container [2024-11-20 13:08:44,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:44,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:08:44,628 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_nondet_test4-3.i[33519,33532] [2024-11-20 13:08:44,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:08:44,785 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:08:44,818 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_nondet_test4-3.i[33519,33532] [2024-11-20 13:08:44,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:08:44,923 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:08:44,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44 WrapperNode [2024-11-20 13:08:44,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:08:44,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:08:44,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:08:44,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:08:44,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:44,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,045 INFO L138 Inliner]: procedures = 176, calls = 424, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1864 [2024-11-20 13:08:45,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:08:45,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:08:45,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:08:45,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:08:45,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,231 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2024-11-20 13:08:45,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:08:45,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:08:45,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:08:45,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:08:45,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (1/1) ... [2024-11-20 13:08:45,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:08:45,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:08:45,387 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) [2024-11-20 13:08:45,393 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 [2024-11-20 13:08:45,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 13:08:45,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 13:08:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 13:08:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 13:08:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 13:08:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 13:08:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 13:08:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 13:08:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 13:08:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 13:08:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:08:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:08:45,705 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:08:45,708 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:08:47,549 INFO L? ?]: Removed 420 outVars from TransFormulas that were not future-live. [2024-11-20 13:08:47,549 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:08:47,569 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:08:47,572 INFO L316 CfgBuilder]: Removed 77 assume(true) statements. [2024-11-20 13:08:47,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:08:47 BoogieIcfgContainer [2024-11-20 13:08:47,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:08:47,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:08:47,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:08:47,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:08:47,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:08:44" (1/3) ... [2024-11-20 13:08:47,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505db4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:08:47, skipping insertion in model container [2024-11-20 13:08:47,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:08:44" (2/3) ... [2024-11-20 13:08:47,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505db4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:08:47, skipping insertion in model container [2024-11-20 13:08:47,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:08:47" (3/3) ... [2024-11-20 13:08:47,580 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-3.i [2024-11-20 13:08:47,595 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:08:47,595 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 13:08:47,669 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:08:47,676 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;@6cb68220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:08:47,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 13:08:47,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 466 states, 457 states have (on average 1.6170678336980306) internal successors, (739), 458 states have internal predecessors, (739), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 13:08:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-20 13:08:47,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:08:47,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:08:47,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:08:47,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:08:47,693 INFO L85 PathProgramCache]: Analyzing trace with hash -639633962, now seen corresponding path program 1 times [2024-11-20 13:08:47,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:08:47,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552909830] [2024-11-20 13:08:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:47,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:08:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:08:47,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:08:47,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552909830] [2024-11-20 13:08:47,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552909830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:08:47,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:08:47,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 13:08:47,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439803115] [2024-11-20 13:08:47,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:08:47,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 13:08:48,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:08:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 13:08:48,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:08:48,029 INFO L87 Difference]: Start difference. First operand has 466 states, 457 states have (on average 1.6170678336980306) internal successors, (739), 458 states have internal predecessors, (739), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:08:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:08:48,644 INFO L93 Difference]: Finished difference Result 1252 states and 2023 transitions. [2024-11-20 13:08:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 13:08:48,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-20 13:08:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:08:48,661 INFO L225 Difference]: With dead ends: 1252 [2024-11-20 13:08:48,661 INFO L226 Difference]: Without dead ends: 720 [2024-11-20 13:08:48,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:08:48,669 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 467 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 13:08:48,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1910 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 13:08:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-20 13:08:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2024-11-20 13:08:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 709 states have (on average 1.4541607898448519) internal successors, (1031), 709 states have internal predecessors, (1031), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:08:48,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1049 transitions. [2024-11-20 13:08:48,767 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1049 transitions. Word has length 10 [2024-11-20 13:08:48,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:08:48,768 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1049 transitions. [2024-11-20 13:08:48,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:08:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1049 transitions. [2024-11-20 13:08:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-20 13:08:48,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:08:48,778 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] [2024-11-20 13:08:48,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:08:48,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:08:48,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:08:48,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1249476143, now seen corresponding path program 1 times [2024-11-20 13:08:48,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:08:48,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309532260] [2024-11-20 13:08:48,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:48,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:08:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:49,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 13:08:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:49,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 13:08:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 13:08:49,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:08:49,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309532260] [2024-11-20 13:08:49,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309532260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:08:49,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:08:49,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:08:49,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009523297] [2024-11-20 13:08:49,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:08:49,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:08:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:08:49,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:08:49,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:08:49,516 INFO L87 Difference]: Start difference. First operand 720 states and 1049 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-20 13:08:49,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:08:49,973 INFO L93 Difference]: Finished difference Result 1389 states and 2027 transitions. [2024-11-20 13:08:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 13:08:49,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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 171 [2024-11-20 13:08:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:08:49,979 INFO L225 Difference]: With dead ends: 1389 [2024-11-20 13:08:49,980 INFO L226 Difference]: Without dead ends: 729 [2024-11-20 13:08:49,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:08:49,982 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 108 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 13:08:49,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1996 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 13:08:49,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-20 13:08:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 720. [2024-11-20 13:08:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 709 states have (on average 1.4344146685472496) internal successors, (1017), 709 states have internal predecessors, (1017), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:08:50,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1035 transitions. [2024-11-20 13:08:50,012 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1035 transitions. Word has length 171 [2024-11-20 13:08:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:08:50,013 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1035 transitions. [2024-11-20 13:08:50,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-20 13:08:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1035 transitions. [2024-11-20 13:08:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-20 13:08:50,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:08:50,017 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] [2024-11-20 13:08:50,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:08:50,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:08:50,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:08:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1636500701, now seen corresponding path program 1 times [2024-11-20 13:08:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:08:50,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234500953] [2024-11-20 13:08:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:08:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:50,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 13:08:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:50,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 13:08:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 13:08:50,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:08:50,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234500953] [2024-11-20 13:08:50,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234500953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:08:50,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:08:50,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 13:08:50,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160751808] [2024-11-20 13:08:50,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:08:50,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 13:08:50,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:08:50,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 13:08:50,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:08:50,363 INFO L87 Difference]: Start difference. First operand 720 states and 1035 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-20 13:08:51,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:08:51,017 INFO L93 Difference]: Finished difference Result 1379 states and 1994 transitions. [2024-11-20 13:08:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 13:08:51,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 171 [2024-11-20 13:08:51,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:08:51,022 INFO L225 Difference]: With dead ends: 1379 [2024-11-20 13:08:51,022 INFO L226 Difference]: Without dead ends: 735 [2024-11-20 13:08:51,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:08:51,024 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 4 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 13:08:51,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1567 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 13:08:51,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-20 13:08:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 732. [2024-11-20 13:08:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 721 states have (on average 1.4271844660194175) internal successors, (1029), 721 states have internal predecessors, (1029), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:08:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1047 transitions. [2024-11-20 13:08:51,056 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1047 transitions. Word has length 171 [2024-11-20 13:08:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:08:51,057 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1047 transitions. [2024-11-20 13:08:51,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-20 13:08:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1047 transitions. [2024-11-20 13:08:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-20 13:08:51,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:08:51,063 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] [2024-11-20 13:08:51,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:08:51,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:08:51,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:08:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1096071195, now seen corresponding path program 1 times [2024-11-20 13:08:51,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:08:51,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219315088] [2024-11-20 13:08:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:51,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:08:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:51,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 13:08:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:51,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 13:08:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 13:08:51,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:08:51,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219315088] [2024-11-20 13:08:51,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219315088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:08:51,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:08:51,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 13:08:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983273178] [2024-11-20 13:08:51,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:08:51,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 13:08:51,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:08:51,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 13:08:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:08:51,326 INFO L87 Difference]: Start difference. First operand 732 states and 1047 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-20 13:08:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:08:51,760 INFO L93 Difference]: Finished difference Result 1317 states and 1894 transitions. [2024-11-20 13:08:51,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 13:08:51,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 171 [2024-11-20 13:08:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:08:51,765 INFO L225 Difference]: With dead ends: 1317 [2024-11-20 13:08:51,767 INFO L226 Difference]: Without dead ends: 733 [2024-11-20 13:08:51,770 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 [2024-11-20 13:08:51,771 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 137 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 13:08:51,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1594 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 13:08:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-20 13:08:51,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 730. [2024-11-20 13:08:51,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 719 states have (on average 1.426981919332406) internal successors, (1026), 719 states have internal predecessors, (1026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:08:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1044 transitions. [2024-11-20 13:08:51,800 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1044 transitions. Word has length 171 [2024-11-20 13:08:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:08:51,800 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 1044 transitions. [2024-11-20 13:08:51,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-20 13:08:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1044 transitions. [2024-11-20 13:08:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-20 13:08:51,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:08:51,803 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] [2024-11-20 13:08:51,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:08:51,803 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:08:51,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:08:51,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1321435977, now seen corresponding path program 1 times [2024-11-20 13:08:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:08:51,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78209525] [2024-11-20 13:08:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:51,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:08:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:52,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 13:08:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:52,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 13:08:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:52,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 13:08:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:52,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 13:08:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 13:08:52,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:08:52,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78209525] [2024-11-20 13:08:52,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78209525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:08:52,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:08:52,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:08:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448535597] [2024-11-20 13:08:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:08:52,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:08:52,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:08:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:08:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:08:52,203 INFO L87 Difference]: Start difference. First operand 730 states and 1044 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:08:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:08:52,762 INFO L93 Difference]: Finished difference Result 1176 states and 1686 transitions. [2024-11-20 13:08:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:08:52,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186 [2024-11-20 13:08:52,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:08:52,766 INFO L225 Difference]: With dead ends: 1176 [2024-11-20 13:08:52,767 INFO L226 Difference]: Without dead ends: 649 [2024-11-20 13:08:52,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:08:52,769 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 33 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 13:08:52,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1753 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 13:08:52,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-20 13:08:52,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 646. [2024-11-20 13:08:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 635 states have (on average 1.373228346456693) internal successors, (872), 635 states have internal predecessors, (872), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:08:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 890 transitions. [2024-11-20 13:08:52,790 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 890 transitions. Word has length 186 [2024-11-20 13:08:52,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:08:52,791 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 890 transitions. [2024-11-20 13:08:52,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:08:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 890 transitions. [2024-11-20 13:08:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-20 13:08:52,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:08:52,794 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] [2024-11-20 13:08:52,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:08:52,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:08:52,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:08:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash 790198595, now seen corresponding path program 1 times [2024-11-20 13:08:52,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:08:52,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690291591] [2024-11-20 13:08:52,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:52,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:08:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:53,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 13:08:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:53,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 13:08:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:53,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 13:08:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:53,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 13:08:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 13:08:53,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:08:53,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690291591] [2024-11-20 13:08:53,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690291591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:08:53,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25004101] [2024-11-20 13:08:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:08:53,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:08:53,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:08:53,848 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) [2024-11-20 13:08:53,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:08:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:08:54,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-20 13:08:54,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:08:54,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-20 13:08:59,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:08:59,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 38 [2024-11-20 13:08:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 13:08:59,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:08:59,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25004101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:08:59,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:08:59,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-20 13:08:59,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629563269] [2024-11-20 13:08:59,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:08:59,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 13:08:59,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:08:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 13:08:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2024-11-20 13:08:59,322 INFO L87 Difference]: Start difference. First operand 646 states and 890 transitions. Second operand has 11 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 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) [2024-11-20 13:09:02,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 13:09:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:04,278 INFO L93 Difference]: Finished difference Result 1303 states and 1784 transitions. [2024-11-20 13:09:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 13:09:04,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 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 186 [2024-11-20 13:09:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:04,283 INFO L225 Difference]: With dead ends: 1303 [2024-11-20 13:09:04,283 INFO L226 Difference]: Without dead ends: 749 [2024-11-20 13:09:04,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=92, Invalid=369, Unknown=1, NotChecked=0, Total=462 [2024-11-20 13:09:04,286 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 723 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:04,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 2817 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1111 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-20 13:09:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-20 13:09:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 678. [2024-11-20 13:09:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 667 states have (on average 1.3628185907046477) internal successors, (909), 667 states have internal predecessors, (909), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:09:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 927 transitions. [2024-11-20 13:09:04,308 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 927 transitions. Word has length 186 [2024-11-20 13:09:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:04,309 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 927 transitions. [2024-11-20 13:09:04,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 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) [2024-11-20 13:09:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 927 transitions. [2024-11-20 13:09:04,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-20 13:09:04,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:04,311 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] [2024-11-20 13:09:04,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:09:04,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 13:09:04,512 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:04,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:04,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2100899515, now seen corresponding path program 1 times [2024-11-20 13:09:04,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:04,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054461968] [2024-11-20 13:09:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:04,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:04,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 13:09:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:04,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 13:09:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:04,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 13:09:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:04,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 13:09:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 13:09:04,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:04,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054461968] [2024-11-20 13:09:04,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054461968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:04,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:09:04,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:09:04,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751268059] [2024-11-20 13:09:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:04,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:09:04,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:09:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:09:04,826 INFO L87 Difference]: Start difference. First operand 678 states and 927 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-20 13:09:05,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:05,243 INFO L93 Difference]: Finished difference Result 1187 states and 1626 transitions. [2024-11-20 13:09:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:09:05,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 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 186 [2024-11-20 13:09:05,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:05,247 INFO L225 Difference]: With dead ends: 1187 [2024-11-20 13:09:05,247 INFO L226 Difference]: Without dead ends: 541 [2024-11-20 13:09:05,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:09:05,249 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 12 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:05,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1450 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 13:09:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-20 13:09:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 538. [2024-11-20 13:09:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 527 states have (on average 1.3263757115749526) internal successors, (699), 527 states have internal predecessors, (699), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:09:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 717 transitions. [2024-11-20 13:09:05,266 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 717 transitions. Word has length 186 [2024-11-20 13:09:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:05,266 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 717 transitions. [2024-11-20 13:09:05,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-20 13:09:05,267 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 717 transitions. [2024-11-20 13:09:05,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-20 13:09:05,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:05,269 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] [2024-11-20 13:09:05,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:09:05,270 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:05,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1661799381, now seen corresponding path program 1 times [2024-11-20 13:09:05,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:05,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767839064] [2024-11-20 13:09:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:05,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:06,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 13:09:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:06,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 13:09:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:06,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 13:09:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:06,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 13:09:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 13:09:06,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767839064] [2024-11-20 13:09:06,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767839064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:09:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250776841] [2024-11-20 13:09:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:06,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:09:06,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:09:06,307 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) [2024-11-20 13:09:06,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:09:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:06,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 13:09:06,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:09:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 13:09:06,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:09:06,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250776841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:06,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:09:06,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-20 13:09:06,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635439840] [2024-11-20 13:09:06,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:06,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 13:09:06,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:06,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 13:09:06,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:09:06,951 INFO L87 Difference]: Start difference. First operand 538 states and 717 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2024-11-20 13:09:07,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:07,075 INFO L93 Difference]: Finished difference Result 1038 states and 1394 transitions. [2024-11-20 13:09:07,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 13:09:07,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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 187 [2024-11-20 13:09:07,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:07,078 INFO L225 Difference]: With dead ends: 1038 [2024-11-20 13:09:07,078 INFO L226 Difference]: Without dead ends: 538 [2024-11-20 13:09:07,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:09:07,080 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 13 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:07,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1063 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 13:09:07,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-20 13:09:07,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-20 13:09:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 527 states have (on average 1.3225806451612903) internal successors, (697), 527 states have internal predecessors, (697), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:09:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 715 transitions. [2024-11-20 13:09:07,098 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 715 transitions. Word has length 187 [2024-11-20 13:09:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:07,099 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 715 transitions. [2024-11-20 13:09:07,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2024-11-20 13:09:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 715 transitions. [2024-11-20 13:09:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-20 13:09:07,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:07,101 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] [2024-11-20 13:09:07,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 13:09:07,301 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 [2024-11-20 13:09:07,302 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:07,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:07,303 INFO L85 PathProgramCache]: Analyzing trace with hash 76542110, now seen corresponding path program 1 times [2024-11-20 13:09:07,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:07,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229603105] [2024-11-20 13:09:07,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:07,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:07,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 13:09:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:07,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 13:09:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:07,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 13:09:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:07,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 13:09:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:07,828 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 13:09:07,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:07,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229603105] [2024-11-20 13:09:07,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229603105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:07,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:09:07,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 13:09:07,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482993210] [2024-11-20 13:09:07,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:07,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 13:09:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 13:09:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:09:07,830 INFO L87 Difference]: Start difference. First operand 538 states and 715 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 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) [2024-11-20 13:09:09,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 13:09:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:10,013 INFO L93 Difference]: Finished difference Result 1044 states and 1408 transitions. [2024-11-20 13:09:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 13:09:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 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 188 [2024-11-20 13:09:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:10,017 INFO L225 Difference]: With dead ends: 1044 [2024-11-20 13:09:10,017 INFO L226 Difference]: Without dead ends: 547 [2024-11-20 13:09:10,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:09:10,018 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 7 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:10,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1678 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-20 13:09:10,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-20 13:09:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 544. [2024-11-20 13:09:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 533 states have (on average 1.3189493433395871) internal successors, (703), 533 states have internal predecessors, (703), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:09:10,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 721 transitions. [2024-11-20 13:09:10,033 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 721 transitions. Word has length 188 [2024-11-20 13:09:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:10,033 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 721 transitions. [2024-11-20 13:09:10,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 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) [2024-11-20 13:09:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 721 transitions. [2024-11-20 13:09:10,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 13:09:10,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:10,035 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] [2024-11-20 13:09:10,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:09:10,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:10,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:10,036 INFO L85 PathProgramCache]: Analyzing trace with hash -862337468, now seen corresponding path program 1 times [2024-11-20 13:09:10,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:10,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43050006] [2024-11-20 13:09:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:10,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:10,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:10,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 13:09:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:10,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 13:09:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:10,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 13:09:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 13:09:10,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:10,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43050006] [2024-11-20 13:09:10,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43050006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:10,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:09:10,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 13:09:10,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488055924] [2024-11-20 13:09:10,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:10,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 13:09:10,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:10,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 13:09:10,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 13:09:10,563 INFO L87 Difference]: Start difference. First operand 544 states and 721 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 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) [2024-11-20 13:09:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:11,467 INFO L93 Difference]: Finished difference Result 1050 states and 1412 transitions. [2024-11-20 13:09:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 13:09:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 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 189 [2024-11-20 13:09:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:11,470 INFO L225 Difference]: With dead ends: 1050 [2024-11-20 13:09:11,470 INFO L226 Difference]: Without dead ends: 557 [2024-11-20 13:09:11,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 13:09:11,473 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 11 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:11,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2281 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 13:09:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-20 13:09:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 552. [2024-11-20 13:09:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 541 states have (on average 1.3179297597042514) internal successors, (713), 541 states have internal predecessors, (713), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 13:09:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 731 transitions. [2024-11-20 13:09:11,491 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 731 transitions. Word has length 189 [2024-11-20 13:09:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:11,491 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 731 transitions. [2024-11-20 13:09:11,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 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) [2024-11-20 13:09:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 731 transitions. [2024-11-20 13:09:11,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 13:09:11,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:11,493 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] [2024-11-20 13:09:11,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:09:11,493 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:11,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:11,494 INFO L85 PathProgramCache]: Analyzing trace with hash 972054312, now seen corresponding path program 1 times [2024-11-20 13:09:11,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:11,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005716894] [2024-11-20 13:09:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:12,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:12,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 13:09:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:12,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 13:09:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:12,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 13:09:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 13:09:12,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:12,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005716894] [2024-11-20 13:09:12,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005716894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:09:12,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295384838] [2024-11-20 13:09:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:12,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:09:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:09:12,452 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) [2024-11-20 13:09:12,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:09:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:13,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 13:09:13,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:09:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 13:09:13,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:09:13,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295384838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:13,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:09:13,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 13:09:13,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338412641] [2024-11-20 13:09:13,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:13,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:09:13,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:13,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:09:13,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:09:13,455 INFO L87 Difference]: Start difference. First operand 552 states and 731 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:13,571 INFO L93 Difference]: Finished difference Result 1074 states and 1437 transitions. [2024-11-20 13:09:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 13:09:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 189 [2024-11-20 13:09:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:13,575 INFO L225 Difference]: With dead ends: 1074 [2024-11-20 13:09:13,575 INFO L226 Difference]: Without dead ends: 617 [2024-11-20 13:09:13,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:09:13,576 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 367 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:13,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1582 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 13:09:13,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-20 13:09:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 555. [2024-11-20 13:09:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 543 states have (on average 1.3186003683241252) internal successors, (716), 544 states have internal predecessors, (716), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 13:09:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 737 transitions. [2024-11-20 13:09:13,600 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 737 transitions. Word has length 189 [2024-11-20 13:09:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:13,600 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 737 transitions. [2024-11-20 13:09:13,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 737 transitions. [2024-11-20 13:09:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-20 13:09:13,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:13,603 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-20 13:09:13,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 13:09:13,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:09:13,805 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:13,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash -754273564, now seen corresponding path program 1 times [2024-11-20 13:09:13,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:13,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084194840] [2024-11-20 13:09:13,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:13,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:14,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:14,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 13:09:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:14,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 13:09:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 13:09:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-20 13:09:14,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:14,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084194840] [2024-11-20 13:09:14,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084194840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:09:14,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116651082] [2024-11-20 13:09:14,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:14,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:09:14,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:09:14,945 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) [2024-11-20 13:09:14,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:09:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:15,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 13:09:15,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:09:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 13:09:15,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:09:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116651082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:09:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-20 13:09:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003077153] [2024-11-20 13:09:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 13:09:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:15,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 13:09:15,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-20 13:09:15,937 INFO L87 Difference]: Start difference. First operand 555 states and 737 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:16,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:16,245 INFO L93 Difference]: Finished difference Result 929 states and 1245 transitions. [2024-11-20 13:09:16,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 13:09:16,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 193 [2024-11-20 13:09:16,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:16,248 INFO L225 Difference]: With dead ends: 929 [2024-11-20 13:09:16,248 INFO L226 Difference]: Without dead ends: 565 [2024-11-20 13:09:16,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-20 13:09:16,251 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 12 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:16,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1724 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 13:09:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-20 13:09:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2024-11-20 13:09:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 551 states have (on average 1.3139745916515426) internal successors, (724), 552 states have internal predecessors, (724), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 13:09:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 745 transitions. [2024-11-20 13:09:16,268 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 745 transitions. Word has length 193 [2024-11-20 13:09:16,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:16,269 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 745 transitions. [2024-11-20 13:09:16,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:16,269 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 745 transitions. [2024-11-20 13:09:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-20 13:09:16,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:16,271 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-20 13:09:16,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 13:09:16,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:09:16,473 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:16,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash -528536652, now seen corresponding path program 1 times [2024-11-20 13:09:16,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:16,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81980012] [2024-11-20 13:09:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:16,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:17,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:17,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 13:09:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:17,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-20 13:09:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:17,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 13:09:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 13:09:17,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:17,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81980012] [2024-11-20 13:09:17,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81980012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:17,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:09:17,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:09:17,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366415002] [2024-11-20 13:09:17,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:17,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:09:17,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:17,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:09:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:09:17,160 INFO L87 Difference]: Start difference. First operand 563 states and 745 transitions. Second operand has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 8 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:18,001 INFO L93 Difference]: Finished difference Result 951 states and 1265 transitions. [2024-11-20 13:09:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 13:09:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 8 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 194 [2024-11-20 13:09:18,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:18,005 INFO L225 Difference]: With dead ends: 951 [2024-11-20 13:09:18,005 INFO L226 Difference]: Without dead ends: 593 [2024-11-20 13:09:18,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:09:18,007 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 28 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:18,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2312 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 13:09:18,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-20 13:09:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 571. [2024-11-20 13:09:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 559 states have (on average 1.3130590339892665) internal successors, (734), 560 states have internal predecessors, (734), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 13:09:18,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 755 transitions. [2024-11-20 13:09:18,023 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 755 transitions. Word has length 194 [2024-11-20 13:09:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:18,023 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 755 transitions. [2024-11-20 13:09:18,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.333333333333332) internal successors, (174), 8 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 755 transitions. [2024-11-20 13:09:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-20 13:09:18,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:18,026 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-20 13:09:18,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:09:18,026 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:18,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:18,026 INFO L85 PathProgramCache]: Analyzing trace with hash -325807624, now seen corresponding path program 1 times [2024-11-20 13:09:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:18,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154896422] [2024-11-20 13:09:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:18,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:18,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 13:09:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:18,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 13:09:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:18,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-20 13:09:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 13:09:18,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:18,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154896422] [2024-11-20 13:09:18,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154896422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:18,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:09:18,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 13:09:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373147824] [2024-11-20 13:09:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:18,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:09:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:18,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:09:18,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:09:18,942 INFO L87 Difference]: Start difference. First operand 571 states and 755 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:19,940 INFO L93 Difference]: Finished difference Result 960 states and 1280 transitions. [2024-11-20 13:09:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 13:09:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 195 [2024-11-20 13:09:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:19,943 INFO L225 Difference]: With dead ends: 960 [2024-11-20 13:09:19,944 INFO L226 Difference]: Without dead ends: 593 [2024-11-20 13:09:19,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:09:19,945 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 35 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:19,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3012 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 13:09:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-20 13:09:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 587. [2024-11-20 13:09:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 575 states have (on average 1.3113043478260868) internal successors, (754), 576 states have internal predecessors, (754), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 13:09:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 775 transitions. [2024-11-20 13:09:19,960 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 775 transitions. Word has length 195 [2024-11-20 13:09:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:19,961 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 775 transitions. [2024-11-20 13:09:19,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 775 transitions. [2024-11-20 13:09:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-20 13:09:19,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:19,963 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-20 13:09:19,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:09:19,963 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:19,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:19,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1543129025, now seen corresponding path program 1 times [2024-11-20 13:09:19,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:19,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949715563] [2024-11-20 13:09:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:19,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:20,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:20,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 13:09:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:20,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 13:09:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:20,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-20 13:09:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 13:09:20,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949715563] [2024-11-20 13:09:20,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949715563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:09:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:09:20,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 13:09:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337210513] [2024-11-20 13:09:20,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:09:20,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 13:09:20,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:09:20,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 13:09:20,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 13:09:20,601 INFO L87 Difference]: Start difference. First operand 587 states and 775 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 13:09:22,140 INFO L93 Difference]: Finished difference Result 982 states and 1303 transitions. [2024-11-20 13:09:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 13:09:22,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 195 [2024-11-20 13:09:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 13:09:22,144 INFO L225 Difference]: With dead ends: 982 [2024-11-20 13:09:22,144 INFO L226 Difference]: Without dead ends: 605 [2024-11-20 13:09:22,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 13:09:22,145 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 18 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 13:09:22,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2300 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 13:09:22,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-20 13:09:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 593. [2024-11-20 13:09:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 581 states have (on average 1.3080895008605853) internal successors, (760), 582 states have internal predecessors, (760), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 13:09:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 781 transitions. [2024-11-20 13:09:22,162 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 781 transitions. Word has length 195 [2024-11-20 13:09:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 13:09:22,162 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 781 transitions. [2024-11-20 13:09:22,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 13:09:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 781 transitions. [2024-11-20 13:09:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-20 13:09:22,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 13:09:22,165 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-20 13:09:22,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:09:22,165 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 13:09:22,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:09:22,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1609106063, now seen corresponding path program 1 times [2024-11-20 13:09:22,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:09:22,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798547219] [2024-11-20 13:09:22,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:22,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:09:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:22,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 13:09:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:23,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 13:09:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:23,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 13:09:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:23,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-20 13:09:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-20 13:09:23,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:09:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798547219] [2024-11-20 13:09:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798547219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:09:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18981941] [2024-11-20 13:09:23,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:09:23,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:09:23,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:09:23,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:09:23,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:09:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:09:24,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 226 conjuncts are in the unsatisfiable core [2024-11-20 13:09:24,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:09:24,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 13:09:24,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-20 13:09:24,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-11-20 13:09:24,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2024-11-20 13:09:24,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-20 13:09:24,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 13:09:24,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-11-20 13:09:24,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 13:09:24,715 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-20 13:09:24,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-11-20 13:09:24,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-20 13:09:24,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-20 13:09:24,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-20 13:09:25,031 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-20 13:09:25,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2024-11-20 13:09:25,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2024-11-20 13:09:25,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11