./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c -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 a30aa210ed4a7c8ee647a70aef136aef282e5eccb07388ecda6495e33bc30b6d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:10:49,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:10:49,647 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:10:49,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:10:49,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:10:49,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:10:49,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:10:49,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:10:49,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:10:49,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:10:49,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:10:49,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:10:49,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:10:49,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:10:49,688 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:10:49,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:10:49,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:10:49,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:10:49,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:10:49,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:10:49,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:10:49,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:10:49,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:10:49,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:10:49,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:10:49,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:10:49,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:10:49,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:10:49,694 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:10:49,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:10:49,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:10:49,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:10:49,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:10:49,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:10:49,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:10:49,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:10:49,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:10:49,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:10:49,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:10:49,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:10:49,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:10:49,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:10:49,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a30aa210ed4a7c8ee647a70aef136aef282e5eccb07388ecda6495e33bc30b6d [2024-11-16 08:10:49,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:10:49,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:10:49,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:10:49,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:10:49,964 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:10:49,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2024-11-16 08:10:51,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:10:51,677 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:10:51,677 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2024-11-16 08:10:51,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd380eff8/5363f9a83e7c4599b8383dfca0137352/FLAGb5ba6616f [2024-11-16 08:10:51,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd380eff8/5363f9a83e7c4599b8383dfca0137352 [2024-11-16 08:10:51,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:10:51,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:10:51,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:10:51,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:10:51,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:10:51,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:10:51" (1/1) ... [2024-11-16 08:10:51,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fe152f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:51, skipping insertion in model container [2024-11-16 08:10:51,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:10:51" (1/1) ... [2024-11-16 08:10:51,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:10:52,012 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/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c[14540,14553] [2024-11-16 08:10:52,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:10:52,026 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:10:52,084 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/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c[14540,14553] [2024-11-16 08:10:52,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:10:52,106 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:10:52,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52 WrapperNode [2024-11-16 08:10:52,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:10:52,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:10:52,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:10:52,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:10:52,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,170 INFO L138 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 504 [2024-11-16 08:10:52,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:10:52,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:10:52,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:10:52,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:10:52,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,210 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:10:52,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,229 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:10:52,246 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:10:52,246 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:10:52,247 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:10:52,247 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (1/1) ... [2024-11-16 08:10:52,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:10:52,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:10:52,289 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) [2024-11-16 08:10:52,293 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 [2024-11-16 08:10:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-11-16 08:10:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-11-16 08:10:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:10:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-11-16 08:10:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-11-16 08:10:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-16 08:10:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-16 08:10:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-11-16 08:10:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-11-16 08:10:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 08:10:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 08:10:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:10:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-11-16 08:10:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-11-16 08:10:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:10:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:10:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-11-16 08:10:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-11-16 08:10:52,474 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:10:52,476 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:10:53,100 INFO L? ?]: Removed 113 outVars from TransFormulas that were not future-live. [2024-11-16 08:10:53,100 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:10:53,124 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:10:53,125 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:10:53,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:10:53 BoogieIcfgContainer [2024-11-16 08:10:53,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:10:53,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:10:53,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:10:53,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:10:53,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:10:51" (1/3) ... [2024-11-16 08:10:53,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c63aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:10:53, skipping insertion in model container [2024-11-16 08:10:53,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:10:52" (2/3) ... [2024-11-16 08:10:53,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c63aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:10:53, skipping insertion in model container [2024-11-16 08:10:53,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:10:53" (3/3) ... [2024-11-16 08:10:53,136 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2024-11-16 08:10:53,148 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:10:53,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:10:53,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:10:53,217 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;@148c607c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:10:53,217 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:10:53,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 146 states have (on average 1.5205479452054795) internal successors, (222), 147 states have internal predecessors, (222), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:10:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 08:10:53,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:53,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:53,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:53,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1329962217, now seen corresponding path program 1 times [2024-11-16 08:10:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:53,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298312486] [2024-11-16 08:10:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:53,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:53,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 08:10:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:53,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:53,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298312486] [2024-11-16 08:10:53,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298312486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:53,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:53,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:10:53,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848599287] [2024-11-16 08:10:53,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:53,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:10:53,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:53,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:10:53,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:10:53,565 INFO L87 Difference]: Start difference. First operand has 186 states, 146 states have (on average 1.5205479452054795) internal successors, (222), 147 states have internal predecessors, (222), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:10:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:53,617 INFO L93 Difference]: Finished difference Result 355 states and 567 transitions. [2024-11-16 08:10:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:10:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-16 08:10:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:53,633 INFO L225 Difference]: With dead ends: 355 [2024-11-16 08:10:53,633 INFO L226 Difference]: Without dead ends: 181 [2024-11-16 08:10:53,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:10:53,642 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:53,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:53,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-16 08:10:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-16 08:10:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 142 states have (on average 1.5070422535211268) internal successors, (214), 142 states have internal predecessors, (214), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:10:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 276 transitions. [2024-11-16 08:10:53,700 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 276 transitions. Word has length 30 [2024-11-16 08:10:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:53,701 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 276 transitions. [2024-11-16 08:10:53,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:10:53,701 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 276 transitions. [2024-11-16 08:10:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 08:10:53,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:53,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:53,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:10:53,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:53,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1262955464, now seen corresponding path program 1 times [2024-11-16 08:10:53,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:53,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294207992] [2024-11-16 08:10:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:53,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:53,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 08:10:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:54,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:54,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294207992] [2024-11-16 08:10:54,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294207992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:54,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:54,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:10:54,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107192453] [2024-11-16 08:10:54,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:54,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:10:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:10:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:10:54,033 INFO L87 Difference]: Start difference. First operand 181 states and 276 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:10:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:54,155 INFO L93 Difference]: Finished difference Result 464 states and 714 transitions. [2024-11-16 08:10:54,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:10:54,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-16 08:10:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:54,161 INFO L225 Difference]: With dead ends: 464 [2024-11-16 08:10:54,161 INFO L226 Difference]: Without dead ends: 297 [2024-11-16 08:10:54,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:10:54,164 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 135 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:54,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1327 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:10:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-16 08:10:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 181. [2024-11-16 08:10:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 142 states have (on average 1.4225352112676057) internal successors, (202), 142 states have internal predecessors, (202), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:10:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 264 transitions. [2024-11-16 08:10:54,192 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 264 transitions. Word has length 30 [2024-11-16 08:10:54,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:54,193 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 264 transitions. [2024-11-16 08:10:54,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:10:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 264 transitions. [2024-11-16 08:10:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:10:54,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:54,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:54,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:10:54,196 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:54,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:54,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1155551889, now seen corresponding path program 1 times [2024-11-16 08:10:54,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:54,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908003220] [2024-11-16 08:10:54,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:54,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:54,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908003220] [2024-11-16 08:10:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908003220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:54,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:54,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125572764] [2024-11-16 08:10:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:54,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:54,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:54,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:54,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:54,496 INFO L87 Difference]: Start difference. First operand 181 states and 264 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:10:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:54,561 INFO L93 Difference]: Finished difference Result 349 states and 518 transitions. [2024-11-16 08:10:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:54,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-11-16 08:10:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:54,564 INFO L225 Difference]: With dead ends: 349 [2024-11-16 08:10:54,565 INFO L226 Difference]: Without dead ends: 185 [2024-11-16 08:10:54,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:54,567 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 3 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:54,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 764 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:54,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-16 08:10:54,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-16 08:10:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 145 states have (on average 1.4137931034482758) internal successors, (205), 145 states have internal predecessors, (205), 31 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:10:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 267 transitions. [2024-11-16 08:10:54,591 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 267 transitions. Word has length 41 [2024-11-16 08:10:54,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:54,594 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 267 transitions. [2024-11-16 08:10:54,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:10:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 267 transitions. [2024-11-16 08:10:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 08:10:54,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:54,596 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] [2024-11-16 08:10:54,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:10:54,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:54,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 385220820, now seen corresponding path program 1 times [2024-11-16 08:10:54,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:54,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558581798] [2024-11-16 08:10:54,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:54,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:10:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:54,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558581798] [2024-11-16 08:10:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558581798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:54,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:54,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:10:54,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211542097] [2024-11-16 08:10:54,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:54,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:10:54,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:54,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:10:54,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:10:54,723 INFO L87 Difference]: Start difference. First operand 185 states and 267 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:54,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:54,767 INFO L93 Difference]: Finished difference Result 507 states and 742 transitions. [2024-11-16 08:10:54,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:10:54,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2024-11-16 08:10:54,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:54,772 INFO L225 Difference]: With dead ends: 507 [2024-11-16 08:10:54,773 INFO L226 Difference]: Without dead ends: 339 [2024-11-16 08:10:54,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:10:54,776 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 213 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:54,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 530 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-16 08:10:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 331. [2024-11-16 08:10:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 254 states have (on average 1.437007874015748) internal successors, (365), 255 states have internal predecessors, (365), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 08:10:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 485 transitions. [2024-11-16 08:10:54,813 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 485 transitions. Word has length 57 [2024-11-16 08:10:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:54,814 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 485 transitions. [2024-11-16 08:10:54,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 485 transitions. [2024-11-16 08:10:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 08:10:54,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:54,818 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] [2024-11-16 08:10:54,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:10:54,819 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:54,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash 690857604, now seen corresponding path program 1 times [2024-11-16 08:10:54,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:54,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075199711] [2024-11-16 08:10:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:54,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 08:10:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075199711] [2024-11-16 08:10:54,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075199711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:54,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:54,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:10:54,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454071859] [2024-11-16 08:10:54,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:54,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:10:54,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:54,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:10:54,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:10:54,923 INFO L87 Difference]: Start difference. First operand 331 states and 485 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:54,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:54,978 INFO L93 Difference]: Finished difference Result 928 states and 1372 transitions. [2024-11-16 08:10:54,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:10:54,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-16 08:10:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:54,987 INFO L225 Difference]: With dead ends: 928 [2024-11-16 08:10:54,987 INFO L226 Difference]: Without dead ends: 614 [2024-11-16 08:10:54,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:10:54,990 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 215 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:54,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 554 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:54,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-16 08:10:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 607. [2024-11-16 08:10:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 458 states have (on average 1.4497816593886463) internal successors, (664), 461 states have internal predecessors, (664), 117 states have call successors, (117), 31 states have call predecessors, (117), 31 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-16 08:10:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 898 transitions. [2024-11-16 08:10:55,046 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 898 transitions. Word has length 58 [2024-11-16 08:10:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:55,048 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 898 transitions. [2024-11-16 08:10:55,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 898 transitions. [2024-11-16 08:10:55,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 08:10:55,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:55,052 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] [2024-11-16 08:10:55,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:10:55,052 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:55,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 180323427, now seen corresponding path program 1 times [2024-11-16 08:10:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:55,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414910464] [2024-11-16 08:10:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:55,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 08:10:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:55,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:55,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414910464] [2024-11-16 08:10:55,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414910464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:55,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:55,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:10:55,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542893206] [2024-11-16 08:10:55,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:55,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:10:55,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:55,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:10:55,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:55,220 INFO L87 Difference]: Start difference. First operand 607 states and 898 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:55,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:55,407 INFO L93 Difference]: Finished difference Result 1304 states and 1921 transitions. [2024-11-16 08:10:55,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:10:55,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-16 08:10:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:55,414 INFO L225 Difference]: With dead ends: 1304 [2024-11-16 08:10:55,415 INFO L226 Difference]: Without dead ends: 714 [2024-11-16 08:10:55,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:55,418 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 371 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:55,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 686 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:10:55,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-16 08:10:55,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 702. [2024-11-16 08:10:55,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 540 states have (on average 1.4314814814814816) internal successors, (773), 543 states have internal predecessors, (773), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1021 transitions. [2024-11-16 08:10:55,476 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1021 transitions. Word has length 58 [2024-11-16 08:10:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:55,478 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1021 transitions. [2024-11-16 08:10:55,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1021 transitions. [2024-11-16 08:10:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 08:10:55,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:55,480 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] [2024-11-16 08:10:55,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:10:55,482 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:55,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:55,482 INFO L85 PathProgramCache]: Analyzing trace with hash -455668116, now seen corresponding path program 1 times [2024-11-16 08:10:55,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:55,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274629424] [2024-11-16 08:10:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:55,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:10:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:55,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:55,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274629424] [2024-11-16 08:10:55,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274629424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:55,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:55,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:10:55,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652901731] [2024-11-16 08:10:55,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:55,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:10:55,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:55,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:10:55,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:55,684 INFO L87 Difference]: Start difference. First operand 702 states and 1021 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:55,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:55,863 INFO L93 Difference]: Finished difference Result 1304 states and 1913 transitions. [2024-11-16 08:10:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:10:55,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 59 [2024-11-16 08:10:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:55,869 INFO L225 Difference]: With dead ends: 1304 [2024-11-16 08:10:55,869 INFO L226 Difference]: Without dead ends: 714 [2024-11-16 08:10:55,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:55,872 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 368 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:55,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 689 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:10:55,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-16 08:10:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 702. [2024-11-16 08:10:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 540 states have (on average 1.424074074074074) internal successors, (769), 543 states have internal predecessors, (769), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1017 transitions. [2024-11-16 08:10:55,936 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1017 transitions. Word has length 59 [2024-11-16 08:10:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:55,937 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1017 transitions. [2024-11-16 08:10:55,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:10:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1017 transitions. [2024-11-16 08:10:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 08:10:55,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:55,939 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] [2024-11-16 08:10:55,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:10:55,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:55,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1718628552, now seen corresponding path program 1 times [2024-11-16 08:10:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:55,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841723092] [2024-11-16 08:10:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:55,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:56,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:56,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841723092] [2024-11-16 08:10:56,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841723092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:56,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:56,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:56,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061075238] [2024-11-16 08:10:56,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:56,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:56,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:56,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:56,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:56,100 INFO L87 Difference]: Start difference. First operand 702 states and 1017 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 08:10:56,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:56,183 INFO L93 Difference]: Finished difference Result 1312 states and 1925 transitions. [2024-11-16 08:10:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:56,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2024-11-16 08:10:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:56,188 INFO L225 Difference]: With dead ends: 1312 [2024-11-16 08:10:56,189 INFO L226 Difference]: Without dead ends: 722 [2024-11-16 08:10:56,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:56,192 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 4 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:56,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 776 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-16 08:10:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2024-11-16 08:10:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 556 states have (on average 1.4118705035971224) internal successors, (785), 559 states have internal predecessors, (785), 124 states have call successors, (124), 41 states have call predecessors, (124), 41 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1033 transitions. [2024-11-16 08:10:56,242 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1033 transitions. Word has length 60 [2024-11-16 08:10:56,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:56,242 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 1033 transitions. [2024-11-16 08:10:56,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 08:10:56,243 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1033 transitions. [2024-11-16 08:10:56,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:10:56,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:56,245 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] [2024-11-16 08:10:56,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:10:56,245 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:56,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:56,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1230982810, now seen corresponding path program 1 times [2024-11-16 08:10:56,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:56,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074948880] [2024-11-16 08:10:56,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:56,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:56,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:56,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074948880] [2024-11-16 08:10:56,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074948880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:56,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:56,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:56,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406825462] [2024-11-16 08:10:56,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:56,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:56,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:56,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:56,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:56,498 INFO L87 Difference]: Start difference. First operand 722 states and 1033 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 08:10:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:56,574 INFO L93 Difference]: Finished difference Result 1352 states and 1969 transitions. [2024-11-16 08:10:56,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:56,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 68 [2024-11-16 08:10:56,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:56,579 INFO L225 Difference]: With dead ends: 1352 [2024-11-16 08:10:56,579 INFO L226 Difference]: Without dead ends: 742 [2024-11-16 08:10:56,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:56,582 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 4 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:56,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 762 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-16 08:10:56,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2024-11-16 08:10:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 572 states have (on average 1.4003496503496504) internal successors, (801), 575 states have internal predecessors, (801), 124 states have call successors, (124), 45 states have call predecessors, (124), 45 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1049 transitions. [2024-11-16 08:10:56,632 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1049 transitions. Word has length 68 [2024-11-16 08:10:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:56,633 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1049 transitions. [2024-11-16 08:10:56,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 08:10:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1049 transitions. [2024-11-16 08:10:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:10:56,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:56,635 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:56,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:10:56,635 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:56,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:56,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1634776512, now seen corresponding path program 1 times [2024-11-16 08:10:56,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:56,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362268772] [2024-11-16 08:10:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:56,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:56,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:56,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362268772] [2024-11-16 08:10:56,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362268772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:56,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:56,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:56,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445897895] [2024-11-16 08:10:56,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:56,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:56,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:56,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:56,824 INFO L87 Difference]: Start difference. First operand 742 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:10:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:56,898 INFO L93 Difference]: Finished difference Result 1388 states and 1985 transitions. [2024-11-16 08:10:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:56,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2024-11-16 08:10:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:56,904 INFO L225 Difference]: With dead ends: 1388 [2024-11-16 08:10:56,904 INFO L226 Difference]: Without dead ends: 758 [2024-11-16 08:10:56,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:56,906 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 3 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:56,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 772 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-16 08:10:56,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2024-11-16 08:10:56,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 584 states have (on average 1.3921232876712328) internal successors, (813), 587 states have internal predecessors, (813), 124 states have call successors, (124), 49 states have call predecessors, (124), 49 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1061 transitions. [2024-11-16 08:10:56,947 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1061 transitions. Word has length 76 [2024-11-16 08:10:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:56,948 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 1061 transitions. [2024-11-16 08:10:56,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:10:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1061 transitions. [2024-11-16 08:10:56,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:10:56,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:56,950 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] [2024-11-16 08:10:56,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:10:56,950 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:56,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:56,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1452693593, now seen corresponding path program 1 times [2024-11-16 08:10:56,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:56,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691486534] [2024-11-16 08:10:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:56,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:10:57,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:57,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691486534] [2024-11-16 08:10:57,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691486534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:57,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:57,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:57,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808048048] [2024-11-16 08:10:57,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:57,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:57,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:57,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:57,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:57,119 INFO L87 Difference]: Start difference. First operand 758 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:10:57,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:57,192 INFO L93 Difference]: Finished difference Result 1424 states and 2025 transitions. [2024-11-16 08:10:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:57,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2024-11-16 08:10:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:57,217 INFO L225 Difference]: With dead ends: 1424 [2024-11-16 08:10:57,218 INFO L226 Difference]: Without dead ends: 778 [2024-11-16 08:10:57,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:57,221 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 4 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:57,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 762 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-16 08:10:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2024-11-16 08:10:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 600 states have (on average 1.3816666666666666) internal successors, (829), 603 states have internal predecessors, (829), 124 states have call successors, (124), 53 states have call predecessors, (124), 53 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1077 transitions. [2024-11-16 08:10:57,261 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1077 transitions. Word has length 76 [2024-11-16 08:10:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:57,261 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 1077 transitions. [2024-11-16 08:10:57,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:10:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1077 transitions. [2024-11-16 08:10:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 08:10:57,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:57,264 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:57,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:10:57,264 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:57,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:57,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1990875863, now seen corresponding path program 1 times [2024-11-16 08:10:57,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:57,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265410639] [2024-11-16 08:10:57,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:10:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:10:57,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:57,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265410639] [2024-11-16 08:10:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265410639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:57,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:57,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170941994] [2024-11-16 08:10:57,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:57,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:57,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:57,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:57,479 INFO L87 Difference]: Start difference. First operand 778 states and 1077 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 08:10:57,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:57,554 INFO L93 Difference]: Finished difference Result 1468 states and 2053 transitions. [2024-11-16 08:10:57,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:57,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 84 [2024-11-16 08:10:57,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:57,559 INFO L225 Difference]: With dead ends: 1468 [2024-11-16 08:10:57,560 INFO L226 Difference]: Without dead ends: 802 [2024-11-16 08:10:57,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:57,563 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 5 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:57,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 774 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-16 08:10:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2024-11-16 08:10:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 620 states have (on average 1.3693548387096774) internal successors, (849), 623 states have internal predecessors, (849), 124 states have call successors, (124), 57 states have call predecessors, (124), 57 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:10:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1097 transitions. [2024-11-16 08:10:57,630 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1097 transitions. Word has length 84 [2024-11-16 08:10:57,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:57,630 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1097 transitions. [2024-11-16 08:10:57,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 08:10:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1097 transitions. [2024-11-16 08:10:57,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 08:10:57,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:57,633 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:57,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:10:57,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:57,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:57,634 INFO L85 PathProgramCache]: Analyzing trace with hash -790731519, now seen corresponding path program 1 times [2024-11-16 08:10:57,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:57,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399107466] [2024-11-16 08:10:57,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:57,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:10:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:10:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 08:10:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399107466] [2024-11-16 08:10:58,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399107466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:58,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:58,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:58,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847603331] [2024-11-16 08:10:58,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:58,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:58,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:58,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:58,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:58,260 INFO L87 Difference]: Start difference. First operand 802 states and 1097 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:10:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:58,589 INFO L93 Difference]: Finished difference Result 2067 states and 2821 transitions. [2024-11-16 08:10:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:10:58,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 87 [2024-11-16 08:10:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:58,597 INFO L225 Difference]: With dead ends: 2067 [2024-11-16 08:10:58,597 INFO L226 Difference]: Without dead ends: 1377 [2024-11-16 08:10:58,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:58,600 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 203 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:58,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1498 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:10:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2024-11-16 08:10:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1086. [2024-11-16 08:10:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 831 states have (on average 1.3610108303249098) internal successors, (1131), 836 states have internal predecessors, (1131), 172 states have call successors, (172), 82 states have call predecessors, (172), 82 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2024-11-16 08:10:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1475 transitions. [2024-11-16 08:10:58,671 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1475 transitions. Word has length 87 [2024-11-16 08:10:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:58,671 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1475 transitions. [2024-11-16 08:10:58,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:10:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1475 transitions. [2024-11-16 08:10:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 08:10:58,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:58,673 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:58,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:10:58,673 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:58,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1353907359, now seen corresponding path program 1 times [2024-11-16 08:10:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:58,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220040461] [2024-11-16 08:10:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:10:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:10:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 08:10:58,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:58,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220040461] [2024-11-16 08:10:58,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220040461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:58,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:58,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:10:58,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594064483] [2024-11-16 08:10:58,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:58,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:10:58,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:58,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:10:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:10:58,856 INFO L87 Difference]: Start difference. First operand 1086 states and 1475 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:10:58,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:58,952 INFO L93 Difference]: Finished difference Result 2016 states and 2761 transitions. [2024-11-16 08:10:58,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:10:58,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 91 [2024-11-16 08:10:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:58,959 INFO L225 Difference]: With dead ends: 2016 [2024-11-16 08:10:58,960 INFO L226 Difference]: Without dead ends: 1110 [2024-11-16 08:10:58,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:10:58,963 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 3 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:58,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 772 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:10:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-11-16 08:10:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2024-11-16 08:10:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 849 states have (on average 1.353356890459364) internal successors, (1149), 854 states have internal predecessors, (1149), 172 states have call successors, (172), 88 states have call predecessors, (172), 88 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2024-11-16 08:10:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1493 transitions. [2024-11-16 08:10:59,041 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1493 transitions. Word has length 91 [2024-11-16 08:10:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:59,042 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1493 transitions. [2024-11-16 08:10:59,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:10:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1493 transitions. [2024-11-16 08:10:59,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 08:10:59,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:59,045 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:59,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:10:59,046 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:59,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash -359792831, now seen corresponding path program 1 times [2024-11-16 08:10:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703227589] [2024-11-16 08:10:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:59,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:10:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:10:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:10:59,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:59,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703227589] [2024-11-16 08:10:59,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703227589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:59,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:59,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:10:59,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666790654] [2024-11-16 08:10:59,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:59,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:10:59,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:59,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:10:59,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:10:59,356 INFO L87 Difference]: Start difference. First operand 1110 states and 1493 transitions. Second operand has 8 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:10:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:59,506 INFO L93 Difference]: Finished difference Result 1545 states and 2180 transitions. [2024-11-16 08:10:59,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:10:59,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2024-11-16 08:10:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:59,514 INFO L225 Difference]: With dead ends: 1545 [2024-11-16 08:10:59,514 INFO L226 Difference]: Without dead ends: 1542 [2024-11-16 08:10:59,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:10:59,516 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 138 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:59,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2953 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:10:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-16 08:10:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1118. [2024-11-16 08:10:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 853 states have (on average 1.3516998827667057) internal successors, (1153), 860 states have internal predecessors, (1153), 174 states have call successors, (174), 90 states have call predecessors, (174), 90 states have return successors, (174), 167 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-16 08:10:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1501 transitions. [2024-11-16 08:10:59,599 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1501 transitions. Word has length 90 [2024-11-16 08:10:59,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:59,600 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1501 transitions. [2024-11-16 08:10:59,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:10:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1501 transitions. [2024-11-16 08:10:59,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:10:59,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:59,602 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:59,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:10:59,602 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:59,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1764133992, now seen corresponding path program 1 times [2024-11-16 08:10:59,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:59,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938854185] [2024-11-16 08:10:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:59,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:10:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:10:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:10:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:10:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:10:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:10:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:10:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:10:59,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:59,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938854185] [2024-11-16 08:10:59,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938854185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:59,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:59,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831643800] [2024-11-16 08:10:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:59,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:59,787 INFO L87 Difference]: Start difference. First operand 1118 states and 1501 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:10:59,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:59,973 INFO L93 Difference]: Finished difference Result 2024 states and 2716 transitions. [2024-11-16 08:10:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:10:59,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2024-11-16 08:10:59,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:59,981 INFO L225 Difference]: With dead ends: 2024 [2024-11-16 08:10:59,981 INFO L226 Difference]: Without dead ends: 1168 [2024-11-16 08:10:59,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:59,984 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 265 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:59,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1503 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:10:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-16 08:11:00,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1133. [2024-11-16 08:11:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 879 states have (on average 1.3378839590443685) internal successors, (1176), 891 states have internal predecessors, (1176), 162 states have call successors, (162), 91 states have call predecessors, (162), 91 states have return successors, (162), 150 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-16 08:11:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1500 transitions. [2024-11-16 08:11:00,064 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1500 transitions. Word has length 93 [2024-11-16 08:11:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:00,064 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1500 transitions. [2024-11-16 08:11:00,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:11:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1500 transitions. [2024-11-16 08:11:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:11:00,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:00,066 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:00,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:11:00,067 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:00,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2061860056, now seen corresponding path program 1 times [2024-11-16 08:11:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152613362] [2024-11-16 08:11:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:00,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:11:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:11:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:11:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:11:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:11:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:11:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152613362] [2024-11-16 08:11:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152613362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:00,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:00,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:00,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624923615] [2024-11-16 08:11:00,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:00,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:00,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:00,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:00,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:00,705 INFO L87 Difference]: Start difference. First operand 1133 states and 1500 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:00,941 INFO L93 Difference]: Finished difference Result 2023 states and 2687 transitions. [2024-11-16 08:11:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2024-11-16 08:11:00,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:00,948 INFO L225 Difference]: With dead ends: 2023 [2024-11-16 08:11:00,948 INFO L226 Difference]: Without dead ends: 1132 [2024-11-16 08:11:00,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:00,951 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 159 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:00,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1631 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:00,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-16 08:11:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1020. [2024-11-16 08:11:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 793 states have (on average 1.3404791929382094) internal successors, (1063), 803 states have internal predecessors, (1063), 145 states have call successors, (145), 81 states have call predecessors, (145), 81 states have return successors, (145), 135 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-16 08:11:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1353 transitions. [2024-11-16 08:11:01,044 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1353 transitions. Word has length 95 [2024-11-16 08:11:01,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:01,044 INFO L471 AbstractCegarLoop]: Abstraction has 1020 states and 1353 transitions. [2024-11-16 08:11:01,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:01,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1353 transitions. [2024-11-16 08:11:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:11:01,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:01,046 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:01,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:11:01,046 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:01,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash -830915754, now seen corresponding path program 1 times [2024-11-16 08:11:01,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:01,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103991774] [2024-11-16 08:11:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:01,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:11:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:11:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:11:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:11:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 08:11:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 08:11:01,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:01,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103991774] [2024-11-16 08:11:01,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103991774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:01,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:01,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:01,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978352039] [2024-11-16 08:11:01,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:01,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:01,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:01,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:01,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:01,530 INFO L87 Difference]: Start difference. First operand 1020 states and 1353 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:01,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:01,941 INFO L93 Difference]: Finished difference Result 1952 states and 2572 transitions. [2024-11-16 08:11:01,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:11:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 96 [2024-11-16 08:11:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:01,948 INFO L225 Difference]: With dead ends: 1952 [2024-11-16 08:11:01,948 INFO L226 Difference]: Without dead ends: 1094 [2024-11-16 08:11:01,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:01,951 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 415 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:01,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1295 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:11:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-16 08:11:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1036. [2024-11-16 08:11:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 801 states have (on average 1.3183520599250935) internal successors, (1056), 812 states have internal predecessors, (1056), 148 states have call successors, (148), 86 states have call predecessors, (148), 86 states have return successors, (148), 137 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-16 08:11:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1352 transitions. [2024-11-16 08:11:02,026 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1352 transitions. Word has length 96 [2024-11-16 08:11:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:02,027 INFO L471 AbstractCegarLoop]: Abstraction has 1036 states and 1352 transitions. [2024-11-16 08:11:02,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1352 transitions. [2024-11-16 08:11:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 08:11:02,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:02,028 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:02,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:11:02,029 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:02,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:02,029 INFO L85 PathProgramCache]: Analyzing trace with hash 432691870, now seen corresponding path program 1 times [2024-11-16 08:11:02,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:02,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155947469] [2024-11-16 08:11:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:02,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 08:11:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 08:11:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:11:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:11:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:11:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:02,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:02,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155947469] [2024-11-16 08:11:02,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155947469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:02,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:02,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:02,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191148693] [2024-11-16 08:11:02,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:02,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:02,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:02,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:02,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:02,138 INFO L87 Difference]: Start difference. First operand 1036 states and 1352 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:02,334 INFO L93 Difference]: Finished difference Result 2729 states and 3586 transitions. [2024-11-16 08:11:02,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:02,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2024-11-16 08:11:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:02,343 INFO L225 Difference]: With dead ends: 2729 [2024-11-16 08:11:02,344 INFO L226 Difference]: Without dead ends: 1906 [2024-11-16 08:11:02,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:02,346 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 206 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:02,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1162 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2024-11-16 08:11:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1782. [2024-11-16 08:11:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1357 states have (on average 1.3146647015475312) internal successors, (1784), 1376 states have internal predecessors, (1784), 272 states have call successors, (272), 152 states have call predecessors, (272), 152 states have return successors, (272), 253 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-16 08:11:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2328 transitions. [2024-11-16 08:11:02,478 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2328 transitions. Word has length 97 [2024-11-16 08:11:02,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:02,478 INFO L471 AbstractCegarLoop]: Abstraction has 1782 states and 2328 transitions. [2024-11-16 08:11:02,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2328 transitions. [2024-11-16 08:11:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:11:02,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:02,480 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:02,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:11:02,481 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:02,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash 760922649, now seen corresponding path program 1 times [2024-11-16 08:11:02,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:02,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273306163] [2024-11-16 08:11:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 08:11:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 08:11:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:11:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:11:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:02,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:11:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 08:11:03,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:03,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273306163] [2024-11-16 08:11:03,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273306163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:03,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:03,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:03,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425793225] [2024-11-16 08:11:03,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:03,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:03,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:03,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:03,041 INFO L87 Difference]: Start difference. First operand 1782 states and 2328 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:03,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:03,572 INFO L93 Difference]: Finished difference Result 3472 states and 4532 transitions. [2024-11-16 08:11:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:11:03,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2024-11-16 08:11:03,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:03,583 INFO L225 Difference]: With dead ends: 3472 [2024-11-16 08:11:03,584 INFO L226 Difference]: Without dead ends: 1983 [2024-11-16 08:11:03,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:03,590 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 425 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:03,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1525 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:11:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2024-11-16 08:11:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1809. [2024-11-16 08:11:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1371 states have (on average 1.3085339168490153) internal successors, (1794), 1391 states have internal predecessors, (1794), 280 states have call successors, (280), 157 states have call predecessors, (280), 157 states have return successors, (280), 260 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-16 08:11:03,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2354 transitions. [2024-11-16 08:11:03,786 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2354 transitions. Word has length 99 [2024-11-16 08:11:03,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:03,787 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2354 transitions. [2024-11-16 08:11:03,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2354 transitions. [2024-11-16 08:11:03,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:11:03,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:03,789 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:03,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:11:03,789 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:03,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 879483256, now seen corresponding path program 1 times [2024-11-16 08:11:03,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:03,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069243881] [2024-11-16 08:11:03,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:03,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:11:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:11:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:03,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:03,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069243881] [2024-11-16 08:11:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069243881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:03,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:03,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:03,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643302097] [2024-11-16 08:11:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:03,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:03,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:03,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:03,930 INFO L87 Difference]: Start difference. First operand 1809 states and 2354 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:04,246 INFO L93 Difference]: Finished difference Result 4597 states and 6016 transitions. [2024-11-16 08:11:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:04,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 101 [2024-11-16 08:11:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:04,261 INFO L225 Difference]: With dead ends: 4597 [2024-11-16 08:11:04,262 INFO L226 Difference]: Without dead ends: 3124 [2024-11-16 08:11:04,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:04,266 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 212 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:04,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1200 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:04,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2024-11-16 08:11:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2820. [2024-11-16 08:11:04,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2107 states have (on average 1.3028001898433792) internal successors, (2745), 2138 states have internal predecessors, (2745), 460 states have call successors, (460), 252 states have call predecessors, (460), 252 states have return successors, (460), 429 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-16 08:11:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 3665 transitions. [2024-11-16 08:11:04,536 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 3665 transitions. Word has length 101 [2024-11-16 08:11:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:04,536 INFO L471 AbstractCegarLoop]: Abstraction has 2820 states and 3665 transitions. [2024-11-16 08:11:04,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 3665 transitions. [2024-11-16 08:11:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:11:04,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:04,539 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:04,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:11:04,539 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:04,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:04,539 INFO L85 PathProgramCache]: Analyzing trace with hash -540267782, now seen corresponding path program 1 times [2024-11-16 08:11:04,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:04,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547326208] [2024-11-16 08:11:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:04,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 08:11:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 08:11:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 08:11:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 08:11:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:11:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:11:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:04,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:04,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547326208] [2024-11-16 08:11:04,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547326208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:04,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:04,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:04,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491080914] [2024-11-16 08:11:04,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:04,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:04,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:04,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:04,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:04,650 INFO L87 Difference]: Start difference. First operand 2820 states and 3665 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:05,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:05,070 INFO L93 Difference]: Finished difference Result 6594 states and 8610 transitions. [2024-11-16 08:11:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:05,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 101 [2024-11-16 08:11:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:05,095 INFO L225 Difference]: With dead ends: 6594 [2024-11-16 08:11:05,095 INFO L226 Difference]: Without dead ends: 4226 [2024-11-16 08:11:05,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:05,105 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 205 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:05,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1196 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2024-11-16 08:11:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4036. [2024-11-16 08:11:05,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 2999 states have (on average 1.3001000333444481) internal successors, (3899), 3043 states have internal predecessors, (3899), 672 states have call successors, (672), 364 states have call predecessors, (672), 364 states have return successors, (672), 628 states have call predecessors, (672), 672 states have call successors, (672) [2024-11-16 08:11:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5243 transitions. [2024-11-16 08:11:05,634 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5243 transitions. Word has length 101 [2024-11-16 08:11:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:05,635 INFO L471 AbstractCegarLoop]: Abstraction has 4036 states and 5243 transitions. [2024-11-16 08:11:05,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5243 transitions. [2024-11-16 08:11:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:11:05,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:05,639 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:05,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:11:05,639 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:05,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:05,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1385353209, now seen corresponding path program 1 times [2024-11-16 08:11:05,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:05,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814202747] [2024-11-16 08:11:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:05,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 08:11:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 08:11:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 08:11:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 08:11:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:11:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:11:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:05,800 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:05,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:05,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814202747] [2024-11-16 08:11:05,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814202747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:05,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:05,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:05,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690343295] [2024-11-16 08:11:05,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:05,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:05,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:05,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:05,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:05,802 INFO L87 Difference]: Start difference. First operand 4036 states and 5243 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:06,131 INFO L93 Difference]: Finished difference Result 7708 states and 10036 transitions. [2024-11-16 08:11:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:06,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2024-11-16 08:11:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:06,173 INFO L225 Difference]: With dead ends: 7708 [2024-11-16 08:11:06,173 INFO L226 Difference]: Without dead ends: 3747 [2024-11-16 08:11:06,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:06,185 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 83 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:06,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 749 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:06,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2024-11-16 08:11:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3684. [2024-11-16 08:11:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 2730 states have (on average 1.3091575091575092) internal successors, (3574), 2764 states have internal predecessors, (3574), 620 states have call successors, (620), 333 states have call predecessors, (620), 333 states have return successors, (620), 586 states have call predecessors, (620), 620 states have call successors, (620) [2024-11-16 08:11:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4814 transitions. [2024-11-16 08:11:06,509 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4814 transitions. Word has length 103 [2024-11-16 08:11:06,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:06,510 INFO L471 AbstractCegarLoop]: Abstraction has 3684 states and 4814 transitions. [2024-11-16 08:11:06,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:06,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4814 transitions. [2024-11-16 08:11:06,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 08:11:06,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:06,512 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:06,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:11:06,512 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:06,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1728706689, now seen corresponding path program 1 times [2024-11-16 08:11:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:06,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238300635] [2024-11-16 08:11:06,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:06,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 08:11:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:11:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 08:11:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 08:11:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 08:11:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 08:11:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:11:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:06,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:06,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238300635] [2024-11-16 08:11:06,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238300635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:06,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:06,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:06,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367044692] [2024-11-16 08:11:06,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:06,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:06,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:06,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:06,673 INFO L87 Difference]: Start difference. First operand 3684 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:07,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:07,028 INFO L93 Difference]: Finished difference Result 7172 states and 9392 transitions. [2024-11-16 08:11:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:07,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 105 [2024-11-16 08:11:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:07,048 INFO L225 Difference]: With dead ends: 7172 [2024-11-16 08:11:07,049 INFO L226 Difference]: Without dead ends: 3604 [2024-11-16 08:11:07,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:07,060 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 62 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:07,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 759 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2024-11-16 08:11:07,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 2762. [2024-11-16 08:11:07,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2042 states have (on average 1.303134182174339) internal successors, (2661), 2061 states have internal predecessors, (2661), 469 states have call successors, (469), 250 states have call predecessors, (469), 250 states have return successors, (469), 450 states have call predecessors, (469), 469 states have call successors, (469) [2024-11-16 08:11:07,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3599 transitions. [2024-11-16 08:11:07,355 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3599 transitions. Word has length 105 [2024-11-16 08:11:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:07,355 INFO L471 AbstractCegarLoop]: Abstraction has 2762 states and 3599 transitions. [2024-11-16 08:11:07,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3599 transitions. [2024-11-16 08:11:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 08:11:07,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:07,361 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:07,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:11:07,361 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:07,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:07,362 INFO L85 PathProgramCache]: Analyzing trace with hash -270777193, now seen corresponding path program 1 times [2024-11-16 08:11:07,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982199531] [2024-11-16 08:11:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:07,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 08:11:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:11:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:11:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:11:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:11:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 08:11:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:11:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 08:11:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:11:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:11:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 08:11:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:08,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:08,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982199531] [2024-11-16 08:11:08,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982199531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:08,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134494983] [2024-11-16 08:11:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:08,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:08,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:08,316 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) [2024-11-16 08:11:08,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:11:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:08,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 08:11:08,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-16 08:11:08,660 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:11:08,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134494983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:08,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:11:08,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-16 08:11:08,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072566843] [2024-11-16 08:11:08,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:08,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:11:08,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:08,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:11:08,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:08,666 INFO L87 Difference]: Start difference. First operand 2762 states and 3599 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 08:11:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:08,960 INFO L93 Difference]: Finished difference Result 5201 states and 6815 transitions. [2024-11-16 08:11:08,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:08,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 155 [2024-11-16 08:11:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:08,978 INFO L225 Difference]: With dead ends: 5201 [2024-11-16 08:11:08,978 INFO L226 Difference]: Without dead ends: 2595 [2024-11-16 08:11:08,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:08,986 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 0 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:08,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1032 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:08,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2024-11-16 08:11:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2578. [2024-11-16 08:11:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 1903 states have (on average 1.2995270625328428) internal successors, (2473), 1920 states have internal predecessors, (2473), 440 states have call successors, (440), 234 states have call predecessors, (440), 234 states have return successors, (440), 423 states have call predecessors, (440), 440 states have call successors, (440) [2024-11-16 08:11:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3353 transitions. [2024-11-16 08:11:09,347 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3353 transitions. Word has length 155 [2024-11-16 08:11:09,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:09,348 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3353 transitions. [2024-11-16 08:11:09,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 08:11:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3353 transitions. [2024-11-16 08:11:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 08:11:09,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:09,354 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:09,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:11:09,558 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,SelfDestructingSolverStorable24 [2024-11-16 08:11:09,559 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:09,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:09,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1028845141, now seen corresponding path program 1 times [2024-11-16 08:11:09,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:09,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231757665] [2024-11-16 08:11:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 08:11:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 08:11:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:11:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 08:11:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:11:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:11:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 08:11:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:11:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 08:11:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 08:11:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:11:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:10,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:10,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231757665] [2024-11-16 08:11:10,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231757665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:10,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063191752] [2024-11-16 08:11:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:10,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:10,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:10,353 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) [2024-11-16 08:11:10,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:11:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:10,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 08:11:10,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 44 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:11:10,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:11,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063191752] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:11,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:11,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 8] total 24 [2024-11-16 08:11:11,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991980073] [2024-11-16 08:11:11,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:11,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 08:11:11,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:11,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 08:11:11,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2024-11-16 08:11:11,338 INFO L87 Difference]: Start difference. First operand 2578 states and 3353 transitions. Second operand has 24 states, 24 states have (on average 10.958333333333334) internal successors, (263), 22 states have internal predecessors, (263), 9 states have call successors, (41), 4 states have call predecessors, (41), 7 states have return successors, (40), 11 states have call predecessors, (40), 9 states have call successors, (40) [2024-11-16 08:11:16,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:16,120 INFO L93 Difference]: Finished difference Result 7567 states and 9862 transitions. [2024-11-16 08:11:16,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-16 08:11:16,121 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.958333333333334) internal successors, (263), 22 states have internal predecessors, (263), 9 states have call successors, (41), 4 states have call predecessors, (41), 7 states have return successors, (40), 11 states have call predecessors, (40), 9 states have call successors, (40) Word has length 157 [2024-11-16 08:11:16,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:16,146 INFO L225 Difference]: With dead ends: 7567 [2024-11-16 08:11:16,146 INFO L226 Difference]: Without dead ends: 5210 [2024-11-16 08:11:16,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1798 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1040, Invalid=6100, Unknown=0, NotChecked=0, Total=7140 [2024-11-16 08:11:16,156 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 2847 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 3212 mSolverCounterSat, 1027 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 7519 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 3212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:16,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 7519 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1027 Valid, 3212 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 08:11:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2024-11-16 08:11:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 4510. [2024-11-16 08:11:16,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 3330 states have (on average 1.3006006006006006) internal successors, (4331), 3359 states have internal predecessors, (4331), 765 states have call successors, (765), 414 states have call predecessors, (765), 414 states have return successors, (765), 736 states have call predecessors, (765), 765 states have call successors, (765) [2024-11-16 08:11:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 5861 transitions. [2024-11-16 08:11:16,671 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 5861 transitions. Word has length 157 [2024-11-16 08:11:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:16,672 INFO L471 AbstractCegarLoop]: Abstraction has 4510 states and 5861 transitions. [2024-11-16 08:11:16,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.958333333333334) internal successors, (263), 22 states have internal predecessors, (263), 9 states have call successors, (41), 4 states have call predecessors, (41), 7 states have return successors, (40), 11 states have call predecessors, (40), 9 states have call successors, (40) [2024-11-16 08:11:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 5861 transitions. [2024-11-16 08:11:16,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 08:11:16,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:16,680 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:16,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:11:16,883 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,SelfDestructingSolverStorable25 [2024-11-16 08:11:16,884 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:16,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:16,885 INFO L85 PathProgramCache]: Analyzing trace with hash 925213061, now seen corresponding path program 1 times [2024-11-16 08:11:16,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:16,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806544025] [2024-11-16 08:11:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:16,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:11:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:11:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:11:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 08:11:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 08:11:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 08:11:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 08:11:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:11:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 08:11:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 08:11:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 08:11:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:17,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806544025] [2024-11-16 08:11:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806544025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136251014] [2024-11-16 08:11:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:17,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:17,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:17,401 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) [2024-11-16 08:11:17,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:11:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-16 08:11:17,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 50 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:11:18,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136251014] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:19,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:19,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 11] total 27 [2024-11-16 08:11:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119354918] [2024-11-16 08:11:19,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:19,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 08:11:19,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 08:11:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:11:19,209 INFO L87 Difference]: Start difference. First operand 4510 states and 5861 transitions. Second operand has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 11 states have call successors, (38), 6 states have call predecessors, (38), 7 states have return successors, (37), 11 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-16 08:11:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:24,560 INFO L93 Difference]: Finished difference Result 10472 states and 13586 transitions. [2024-11-16 08:11:24,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-16 08:11:24,561 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 11 states have call successors, (38), 6 states have call predecessors, (38), 7 states have return successors, (37), 11 states have call predecessors, (37), 11 states have call successors, (37) Word has length 158 [2024-11-16 08:11:24,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:24,590 INFO L225 Difference]: With dead ends: 10472 [2024-11-16 08:11:24,591 INFO L226 Difference]: Without dead ends: 6210 [2024-11-16 08:11:24,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2601 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1681, Invalid=5459, Unknown=0, NotChecked=0, Total=7140 [2024-11-16 08:11:24,606 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 3220 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 1028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1028 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:24,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 3604 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1028 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:11:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6210 states. [2024-11-16 08:11:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6210 to 5466. [2024-11-16 08:11:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 4069 states have (on average 1.2944212337183583) internal successors, (5267), 4102 states have internal predecessors, (5267), 894 states have call successors, (894), 502 states have call predecessors, (894), 502 states have return successors, (894), 861 states have call predecessors, (894), 894 states have call successors, (894) [2024-11-16 08:11:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 7055 transitions. [2024-11-16 08:11:25,588 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 7055 transitions. Word has length 158 [2024-11-16 08:11:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:25,589 INFO L471 AbstractCegarLoop]: Abstraction has 5466 states and 7055 transitions. [2024-11-16 08:11:25,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 11 states have call successors, (38), 6 states have call predecessors, (38), 7 states have return successors, (37), 11 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-16 08:11:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 7055 transitions. [2024-11-16 08:11:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 08:11:25,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:25,600 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:25,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:11:25,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:25,800 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:25,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -915448786, now seen corresponding path program 1 times [2024-11-16 08:11:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851399854] [2024-11-16 08:11:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:11:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:11:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:11:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 08:11:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 08:11:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 08:11:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 08:11:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:11:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 08:11:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:11:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:11:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-16 08:11:26,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:26,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851399854] [2024-11-16 08:11:26,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851399854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:26,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:26,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172037123] [2024-11-16 08:11:26,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:26,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:26,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:26,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:26,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:26,037 INFO L87 Difference]: Start difference. First operand 5466 states and 7055 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 08:11:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:27,740 INFO L93 Difference]: Finished difference Result 15494 states and 20097 transitions. [2024-11-16 08:11:27,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:27,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 159 [2024-11-16 08:11:27,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:27,780 INFO L225 Difference]: With dead ends: 15494 [2024-11-16 08:11:27,781 INFO L226 Difference]: Without dead ends: 10565 [2024-11-16 08:11:27,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:27,796 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 227 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:27,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 2608 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2024-11-16 08:11:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 7837. [2024-11-16 08:11:29,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7837 states, 5776 states have (on average 1.29553324099723) internal successors, (7483), 5826 states have internal predecessors, (7483), 1337 states have call successors, (1337), 723 states have call predecessors, (1337), 723 states have return successors, (1337), 1287 states have call predecessors, (1337), 1337 states have call successors, (1337) [2024-11-16 08:11:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7837 states to 7837 states and 10157 transitions. [2024-11-16 08:11:29,074 INFO L78 Accepts]: Start accepts. Automaton has 7837 states and 10157 transitions. Word has length 159 [2024-11-16 08:11:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:29,075 INFO L471 AbstractCegarLoop]: Abstraction has 7837 states and 10157 transitions. [2024-11-16 08:11:29,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 08:11:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7837 states and 10157 transitions. [2024-11-16 08:11:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 08:11:29,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:29,094 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:29,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:11:29,094 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:29,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1832265130, now seen corresponding path program 1 times [2024-11-16 08:11:29,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:29,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646359837] [2024-11-16 08:11:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:29,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:11:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:11:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:11:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 08:11:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 08:11:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 08:11:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 08:11:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 08:11:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:11:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:11:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 08:11:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-16 08:11:29,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:29,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646359837] [2024-11-16 08:11:29,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646359837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059714158] [2024-11-16 08:11:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:29,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:29,726 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) [2024-11-16 08:11:29,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 08:11:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 08:11:29,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 08:11:30,069 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-16 08:11:30,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059714158] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:30,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:30,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 15 [2024-11-16 08:11:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580507127] [2024-11-16 08:11:30,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:30,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 08:11:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 08:11:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:11:30,177 INFO L87 Difference]: Start difference. First operand 7837 states and 10157 transitions. Second operand has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 12 states have internal predecessors, (183), 5 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (32), 7 states have call predecessors, (32), 5 states have call successors, (32) [2024-11-16 08:11:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:33,006 INFO L93 Difference]: Finished difference Result 20726 states and 26753 transitions. [2024-11-16 08:11:33,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 08:11:33,007 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 12 states have internal predecessors, (183), 5 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (32), 7 states have call predecessors, (32), 5 states have call successors, (32) Word has length 160 [2024-11-16 08:11:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:33,055 INFO L225 Difference]: With dead ends: 20726 [2024-11-16 08:11:33,055 INFO L226 Difference]: Without dead ends: 13088 [2024-11-16 08:11:33,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=694, Unknown=0, NotChecked=0, Total=812 [2024-11-16 08:11:33,074 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 343 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:33,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 2842 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:11:33,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13088 states. [2024-11-16 08:11:34,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13088 to 8523. [2024-11-16 08:11:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8523 states, 6271 states have (on average 1.2943709137298676) internal successors, (8117), 6328 states have internal predecessors, (8117), 1454 states have call successors, (1454), 797 states have call predecessors, (1454), 797 states have return successors, (1454), 1397 states have call predecessors, (1454), 1454 states have call successors, (1454) [2024-11-16 08:11:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8523 states to 8523 states and 11025 transitions. [2024-11-16 08:11:34,537 INFO L78 Accepts]: Start accepts. Automaton has 8523 states and 11025 transitions. Word has length 160 [2024-11-16 08:11:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:34,538 INFO L471 AbstractCegarLoop]: Abstraction has 8523 states and 11025 transitions. [2024-11-16 08:11:34,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 12 states have internal predecessors, (183), 5 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (32), 7 states have call predecessors, (32), 5 states have call successors, (32) [2024-11-16 08:11:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8523 states and 11025 transitions. [2024-11-16 08:11:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 08:11:34,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:34,549 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:34,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 08:11:34,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 08:11:34,750 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:34,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:34,751 INFO L85 PathProgramCache]: Analyzing trace with hash 422224954, now seen corresponding path program 1 times [2024-11-16 08:11:34,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:34,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631205857] [2024-11-16 08:11:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:34,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:11:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:11:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:11:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 08:11:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:11:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:11:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 08:11:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:11:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:11:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:11:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 08:11:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 08:11:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 08:11:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:11:35,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:35,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631205857] [2024-11-16 08:11:35,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631205857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:35,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937279701] [2024-11-16 08:11:35,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:35,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:35,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:35,505 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) [2024-11-16 08:11:35,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 08:11:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:35,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-16 08:11:35,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 73 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 08:11:36,420 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:11:37,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937279701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:37,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:37,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 12] total 28 [2024-11-16 08:11:37,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915027324] [2024-11-16 08:11:37,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:37,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 08:11:37,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:37,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 08:11:37,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:11:37,146 INFO L87 Difference]: Start difference. First operand 8523 states and 11025 transitions. Second operand has 28 states, 28 states have (on average 9.571428571428571) internal successors, (268), 28 states have internal predecessors, (268), 10 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-16 08:11:42,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:42,550 INFO L93 Difference]: Finished difference Result 19557 states and 25357 transitions. [2024-11-16 08:11:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-16 08:11:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.571428571428571) internal successors, (268), 28 states have internal predecessors, (268), 10 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) Word has length 176 [2024-11-16 08:11:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:42,596 INFO L225 Difference]: With dead ends: 19557 [2024-11-16 08:11:42,596 INFO L226 Difference]: Without dead ends: 11463 [2024-11-16 08:11:42,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2009 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1097, Invalid=5875, Unknown=0, NotChecked=0, Total=6972 [2024-11-16 08:11:42,614 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 2149 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 5578 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:42,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 5578 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:11:42,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11463 states. [2024-11-16 08:11:44,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11463 to 10928. [2024-11-16 08:11:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10928 states, 8026 states have (on average 1.293795165711438) internal successors, (10384), 8102 states have internal predecessors, (10384), 1872 states have call successors, (1872), 1029 states have call predecessors, (1872), 1029 states have return successors, (1872), 1796 states have call predecessors, (1872), 1872 states have call successors, (1872) [2024-11-16 08:11:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10928 states to 10928 states and 14128 transitions. [2024-11-16 08:11:44,701 INFO L78 Accepts]: Start accepts. Automaton has 10928 states and 14128 transitions. Word has length 176 [2024-11-16 08:11:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:44,701 INFO L471 AbstractCegarLoop]: Abstraction has 10928 states and 14128 transitions. [2024-11-16 08:11:44,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.571428571428571) internal successors, (268), 28 states have internal predecessors, (268), 10 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-16 08:11:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 10928 states and 14128 transitions. [2024-11-16 08:11:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 08:11:44,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:44,716 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:44,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 08:11:44,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:44,920 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:44,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash -522043362, now seen corresponding path program 1 times [2024-11-16 08:11:44,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:44,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135972680] [2024-11-16 08:11:44,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:44,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:11:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:11:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 08:11:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:11:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:11:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:11:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:11:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 08:11:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 08:11:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 08:11:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,098 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:11:46,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:46,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135972680] [2024-11-16 08:11:46,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135972680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:46,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307810517] [2024-11-16 08:11:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:46,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:46,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:46,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:46,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 08:11:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:46,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-16 08:11:46,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 69 proven. 18 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 08:11:46,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:11:48,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307810517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:48,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:48,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 28 [2024-11-16 08:11:48,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916047527] [2024-11-16 08:11:48,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:48,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 08:11:48,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:48,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 08:11:48,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:11:48,274 INFO L87 Difference]: Start difference. First operand 10928 states and 14128 transitions. Second operand has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 28 states have internal predecessors, (284), 10 states have call successors, (43), 5 states have call predecessors, (43), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-16 08:11:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:51,876 INFO L93 Difference]: Finished difference Result 20897 states and 27118 transitions. [2024-11-16 08:11:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 08:11:51,876 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 28 states have internal predecessors, (284), 10 states have call successors, (43), 5 states have call predecessors, (43), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 176 [2024-11-16 08:11:51,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:51,919 INFO L225 Difference]: With dead ends: 20897 [2024-11-16 08:11:51,919 INFO L226 Difference]: Without dead ends: 11909 [2024-11-16 08:11:51,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=308, Invalid=1498, Unknown=0, NotChecked=0, Total=1806 [2024-11-16 08:11:51,936 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 1262 mSDsluCounter, 5358 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 5821 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:51,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 5821 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 08:11:51,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11909 states. [2024-11-16 08:11:53,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11909 to 11640. [2024-11-16 08:11:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11640 states, 8557 states have (on average 1.2934439640060769) internal successors, (11068), 8639 states have internal predecessors, (11068), 1988 states have call successors, (1988), 1094 states have call predecessors, (1988), 1094 states have return successors, (1988), 1906 states have call predecessors, (1988), 1988 states have call successors, (1988) [2024-11-16 08:11:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11640 states to 11640 states and 15044 transitions. [2024-11-16 08:11:53,910 INFO L78 Accepts]: Start accepts. Automaton has 11640 states and 15044 transitions. Word has length 176 [2024-11-16 08:11:53,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:53,910 INFO L471 AbstractCegarLoop]: Abstraction has 11640 states and 15044 transitions. [2024-11-16 08:11:53,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 28 states have internal predecessors, (284), 10 states have call successors, (43), 5 states have call predecessors, (43), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-16 08:11:53,910 INFO L276 IsEmpty]: Start isEmpty. Operand 11640 states and 15044 transitions. [2024-11-16 08:11:53,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 08:11:53,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:53,923 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:53,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 08:11:54,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:54,128 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:54,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1932252478, now seen corresponding path program 1 times [2024-11-16 08:11:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:54,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952832945] [2024-11-16 08:11:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:11:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:11:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:11:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 08:11:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:11:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:11:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 08:11:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:11:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 08:11:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:11:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 08:11:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:11:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-16 08:11:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 33 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-16 08:11:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952832945] [2024-11-16 08:11:54,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952832945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350331609] [2024-11-16 08:11:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:54,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:54,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:54,800 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:54,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 08:11:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:55,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-16 08:11:55,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 08:11:55,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 33 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-16 08:11:55,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350331609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:55,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:55,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 10] total 24 [2024-11-16 08:11:55,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649502922] [2024-11-16 08:11:55,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:55,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 08:11:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:55,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 08:11:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-11-16 08:11:55,434 INFO L87 Difference]: Start difference. First operand 11640 states and 15044 transitions. Second operand has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 19 states have internal predecessors, (179), 4 states have call successors, (28), 4 states have call predecessors, (28), 10 states have return successors, (31), 9 states have call predecessors, (31), 4 states have call successors, (31)