./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu --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 2463f96020283dc976a48e4624a0a64ed4b926874e2dafad9e507fb796d4e148 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:18,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:18,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:55:18,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:18,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:18,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:18,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:18,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:18,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:18,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:18,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:18,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:18,974 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:18,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:18,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:18,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:18,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:18,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:18,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:18,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:18,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:18,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:18,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:18,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:18,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:18,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:18,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:18,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:18,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:18,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:18,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:18,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:18,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:18,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:18,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:18,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:18,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:18,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:18,997 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:18,998 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2463f96020283dc976a48e4624a0a64ed4b926874e2dafad9e507fb796d4e148 [2023-11-19 07:55:19,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:19,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:19,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:19,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:19,294 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:19,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i [2023-11-19 07:55:22,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:22,802 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:22,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i [2023-11-19 07:55:22,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/data/288256ffe/556716f44cd94dd9968f48f8c0b2861a/FLAGc2d62af62 [2023-11-19 07:55:22,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/data/288256ffe/556716f44cd94dd9968f48f8c0b2861a [2023-11-19 07:55:22,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:22,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:22,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:22,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:22,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:22,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:22" (1/1) ... [2023-11-19 07:55:22,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8eca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:22, skipping insertion in model container [2023-11-19 07:55:22,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:22" (1/1) ... [2023-11-19 07:55:22,903 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:23,068 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i[913,926] [2023-11-19 07:55:23,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:23,137 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:23,149 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i[913,926] [2023-11-19 07:55:23,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:23,198 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:23,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23 WrapperNode [2023-11-19 07:55:23,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:23,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:23,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:23,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:23,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,274 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-19 07:55:23,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:23,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:23,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:23,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:23,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:23,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:23,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:23,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:23,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (1/1) ... [2023-11-19 07:55:23,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:23,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:23,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:23,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264d9582-2ba7-4bca-92f7-7b2cc9f15024/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:55:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:55:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:23,546 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:23,548 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:23,912 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:23,928 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:23,928 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:55:23,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:23 BoogieIcfgContainer [2023-11-19 07:55:23,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:23,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:23,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:23,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:23,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:22" (1/3) ... [2023-11-19 07:55:23,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601d8d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:23, skipping insertion in model container [2023-11-19 07:55:23,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:23" (2/3) ... [2023-11-19 07:55:23,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601d8d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:23, skipping insertion in model container [2023-11-19 07:55:23,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:23" (3/3) ... [2023-11-19 07:55:23,964 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-66.i [2023-11-19 07:55:23,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:23,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:55:24,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:24,034 INFO L357 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, mHoare=true, 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;@5619db6a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:24,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:55:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:55:24,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:55:24,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:24,048 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:24,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:24,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:24,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1691062779, now seen corresponding path program 1 times [2023-11-19 07:55:24,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:24,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080238177] [2023-11-19 07:55:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:24,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:24,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080238177] [2023-11-19 07:55:24,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080238177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:24,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:24,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921274944] [2023-11-19 07:55:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:24,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:24,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:24,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:24,492 INFO L87 Difference]: Start difference. First operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:55:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:24,531 INFO L93 Difference]: Finished difference Result 83 states and 140 transitions. [2023-11-19 07:55:24,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:24,534 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2023-11-19 07:55:24,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:24,543 INFO L225 Difference]: With dead ends: 83 [2023-11-19 07:55:24,543 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 07:55:24,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:24,552 INFO L413 NwaCegarLoop]: 59 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, 59 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 [2023-11-19 07:55:24,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 07:55:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 07:55:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:55:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2023-11-19 07:55:24,604 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 89 [2023-11-19 07:55:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:24,605 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2023-11-19 07:55:24,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:55:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2023-11-19 07:55:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:55:24,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:24,610 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:24,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:24,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:24,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:24,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1552521403, now seen corresponding path program 1 times [2023-11-19 07:55:24,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:24,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912333192] [2023-11-19 07:55:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:24,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:25,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:25,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912333192] [2023-11-19 07:55:25,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912333192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:25,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:25,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:55:25,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770508338] [2023-11-19 07:55:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:25,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:25,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:25,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:25,314 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:25,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:25,398 INFO L93 Difference]: Finished difference Result 117 states and 171 transitions. [2023-11-19 07:55:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:25,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 89 [2023-11-19 07:55:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:25,407 INFO L225 Difference]: With dead ends: 117 [2023-11-19 07:55:25,407 INFO L226 Difference]: Without dead ends: 79 [2023-11-19 07:55:25,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:25,413 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:25,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 101 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-19 07:55:25,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2023-11-19 07:55:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:55:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 110 transitions. [2023-11-19 07:55:25,464 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 110 transitions. Word has length 89 [2023-11-19 07:55:25,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:25,465 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 110 transitions. [2023-11-19 07:55:25,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 110 transitions. [2023-11-19 07:55:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:55:25,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:25,467 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:25,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:25,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:25,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash -828174430, now seen corresponding path program 1 times [2023-11-19 07:55:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:25,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530520205] [2023-11-19 07:55:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:26,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:26,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530520205] [2023-11-19 07:55:26,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530520205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:26,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:26,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:55:26,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094289229] [2023-11-19 07:55:26,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:26,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:55:26,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:26,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:55:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:55:26,256 INFO L87 Difference]: Start difference. First operand 76 states and 110 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:55:26,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:26,536 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2023-11-19 07:55:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:26,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2023-11-19 07:55:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:26,539 INFO L225 Difference]: With dead ends: 196 [2023-11-19 07:55:26,540 INFO L226 Difference]: Without dead ends: 123 [2023-11-19 07:55:26,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:55:26,543 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 57 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:26,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 225 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:55:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-19 07:55:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2023-11-19 07:55:26,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 65 states have (on average 1.2) internal successors, (78), 65 states have internal predecessors, (78), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2023-11-19 07:55:26,572 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 90 [2023-11-19 07:55:26,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:26,573 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2023-11-19 07:55:26,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:55:26,573 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2023-11-19 07:55:26,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:55:26,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:26,575 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:26,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:55:26,576 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:26,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:26,576 INFO L85 PathProgramCache]: Analyzing trace with hash -830021472, now seen corresponding path program 1 times [2023-11-19 07:55:26,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:26,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725590748] [2023-11-19 07:55:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:26,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:33,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:33,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725590748] [2023-11-19 07:55:33,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725590748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:33,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:33,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:55:33,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587210436] [2023-11-19 07:55:33,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:33,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:55:33,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:33,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:55:33,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:55:33,393 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:55:34,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:34,470 INFO L93 Difference]: Finished difference Result 150 states and 221 transitions. [2023-11-19 07:55:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:55:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2023-11-19 07:55:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:34,475 INFO L225 Difference]: With dead ends: 150 [2023-11-19 07:55:34,478 INFO L226 Difference]: Without dead ends: 148 [2023-11-19 07:55:34,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:55:34,481 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 74 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:34,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 462 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:55:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-19 07:55:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2023-11-19 07:55:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 68 states have internal predecessors, (81), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 165 transitions. [2023-11-19 07:55:34,520 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 165 transitions. Word has length 90 [2023-11-19 07:55:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:34,521 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 165 transitions. [2023-11-19 07:55:34,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:55:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 165 transitions. [2023-11-19 07:55:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:55:34,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:34,524 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:34,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:55:34,524 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:34,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1518851614, now seen corresponding path program 1 times [2023-11-19 07:55:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579523204] [2023-11-19 07:55:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:37,284 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:37,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:37,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579523204] [2023-11-19 07:55:37,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579523204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:37,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:37,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:55:37,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770789965] [2023-11-19 07:55:37,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:37,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:55:37,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:55:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:55:37,288 INFO L87 Difference]: Start difference. First operand 114 states and 165 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:38,227 INFO L93 Difference]: Finished difference Result 186 states and 267 transitions. [2023-11-19 07:55:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:55:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2023-11-19 07:55:38,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:38,233 INFO L225 Difference]: With dead ends: 186 [2023-11-19 07:55:38,233 INFO L226 Difference]: Without dead ends: 184 [2023-11-19 07:55:38,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:55:38,236 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 143 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:38,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 471 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:55:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-19 07:55:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 122. [2023-11-19 07:55:38,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 76 states have (on average 1.236842105263158) internal successors, (94), 76 states have internal predecessors, (94), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2023-11-19 07:55:38,290 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 90 [2023-11-19 07:55:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:38,291 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2023-11-19 07:55:38,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2023-11-19 07:55:38,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:55:38,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:38,297 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:38,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:55:38,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:38,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1461593312, now seen corresponding path program 1 times [2023-11-19 07:55:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564783554] [2023-11-19 07:55:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:38,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:38,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:38,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564783554] [2023-11-19 07:55:38,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564783554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:38,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:38,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:38,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932789332] [2023-11-19 07:55:38,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:38,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:38,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:38,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:38,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:38,541 INFO L87 Difference]: Start difference. First operand 122 states and 178 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:38,637 INFO L93 Difference]: Finished difference Result 199 states and 279 transitions. [2023-11-19 07:55:38,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:38,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2023-11-19 07:55:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:38,640 INFO L225 Difference]: With dead ends: 199 [2023-11-19 07:55:38,640 INFO L226 Difference]: Without dead ends: 159 [2023-11-19 07:55:38,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:38,642 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 65 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:38,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 110 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-19 07:55:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 135. [2023-11-19 07:55:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 86 states have (on average 1.186046511627907) internal successors, (102), 86 states have internal predecessors, (102), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2023-11-19 07:55:38,668 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 90 [2023-11-19 07:55:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:38,668 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2023-11-19 07:55:38,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2023-11-19 07:55:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:55:38,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:38,671 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:38,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:55:38,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:38,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash 256155748, now seen corresponding path program 1 times [2023-11-19 07:55:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:38,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831350604] [2023-11-19 07:55:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:38,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:41,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:41,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831350604] [2023-11-19 07:55:41,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831350604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:41,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:41,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:55:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195803004] [2023-11-19 07:55:41,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:41,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:55:41,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:55:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:55:41,764 INFO L87 Difference]: Start difference. First operand 135 states and 186 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:42,888 INFO L93 Difference]: Finished difference Result 203 states and 279 transitions. [2023-11-19 07:55:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:55:42,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2023-11-19 07:55:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:42,891 INFO L225 Difference]: With dead ends: 203 [2023-11-19 07:55:42,891 INFO L226 Difference]: Without dead ends: 201 [2023-11-19 07:55:42,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:55:42,892 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 115 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:42,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 480 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:55:42,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-19 07:55:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2023-11-19 07:55:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 87 states have internal predecessors, (104), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:42,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2023-11-19 07:55:42,929 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 188 transitions. Word has length 90 [2023-11-19 07:55:42,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:42,932 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 188 transitions. [2023-11-19 07:55:42,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2023-11-19 07:55:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:55:42,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:42,934 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:42,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:55:42,935 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:42,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:42,935 INFO L85 PathProgramCache]: Analyzing trace with hash 313414050, now seen corresponding path program 1 times [2023-11-19 07:55:42,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:42,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226271176] [2023-11-19 07:55:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:42,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:47,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:47,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226271176] [2023-11-19 07:55:47,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226271176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:47,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:47,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:55:47,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862277095] [2023-11-19 07:55:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:47,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:55:47,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:55:47,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:55:47,072 INFO L87 Difference]: Start difference. First operand 136 states and 188 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:48,518 INFO L93 Difference]: Finished difference Result 197 states and 272 transitions. [2023-11-19 07:55:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:55:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2023-11-19 07:55:48,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:48,522 INFO L225 Difference]: With dead ends: 197 [2023-11-19 07:55:48,523 INFO L226 Difference]: Without dead ends: 195 [2023-11-19 07:55:48,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:55:48,531 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 108 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:48,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 475 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:55:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-19 07:55:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 135. [2023-11-19 07:55:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 86 states have (on average 1.186046511627907) internal successors, (102), 86 states have internal predecessors, (102), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2023-11-19 07:55:48,558 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 90 [2023-11-19 07:55:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:48,559 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2023-11-19 07:55:48,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2023-11-19 07:55:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:55:48,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:48,561 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:48,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:55:48,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:48,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash 213741987, now seen corresponding path program 1 times [2023-11-19 07:55:48,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:48,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265463949] [2023-11-19 07:55:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:48,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:55:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:55:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:55:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:55:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:55:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:55:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:55:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:55:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:55:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:55:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:55:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:55:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:55:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:55:53,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:53,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265463949] [2023-11-19 07:55:53,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265463949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:53,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:53,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:55:53,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309970093] [2023-11-19 07:55:53,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:53,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:55:53,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:53,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:55:53,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:55:53,333 INFO L87 Difference]: Start difference. First operand 135 states and 186 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:55,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:55,189 INFO L93 Difference]: Finished difference Result 190 states and 263 transitions. [2023-11-19 07:55:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:55:55,190 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2023-11-19 07:55:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:55,191 INFO L225 Difference]: With dead ends: 190 [2023-11-19 07:55:55,192 INFO L226 Difference]: Without dead ends: 188 [2023-11-19 07:55:55,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:55:55,193 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 118 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:55,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 483 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:55:55,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-19 07:55:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 139. [2023-11-19 07:55:55,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.211111111111111) internal successors, (109), 90 states have internal predecessors, (109), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:55:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 193 transitions. [2023-11-19 07:55:55,243 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 193 transitions. Word has length 91 [2023-11-19 07:55:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:55,243 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 193 transitions. [2023-11-19 07:55:55,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 07:55:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 193 transitions. [2023-11-19 07:55:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:55:55,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:55,248 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:55,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:55:55,248 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:55,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -595604639, now seen corresponding path program 1 times [2023-11-19 07:55:55,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:55,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245453633] [2023-11-19 07:55:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:56:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:56:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:56:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:56:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:56:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:56:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:56:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:56:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:56:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:56:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:56:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:56:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:56:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:56:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:00,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:56:00,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:00,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245453633] [2023-11-19 07:56:00,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245453633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:00,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:00,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:56:00,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287099458] [2023-11-19 07:56:00,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:00,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:56:00,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:00,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:56:00,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:56:00,557 INFO L87 Difference]: Start difference. First operand 139 states and 193 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:56:02,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:02,514 INFO L93 Difference]: Finished difference Result 199 states and 273 transitions. [2023-11-19 07:56:02,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:56:02,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2023-11-19 07:56:02,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:02,517 INFO L225 Difference]: With dead ends: 199 [2023-11-19 07:56:02,517 INFO L226 Difference]: Without dead ends: 197 [2023-11-19 07:56:02,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:56:02,519 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 122 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:02,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 479 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:56:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-19 07:56:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 139. [2023-11-19 07:56:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.211111111111111) internal successors, (109), 90 states have internal predecessors, (109), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 07:56:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 193 transitions. [2023-11-19 07:56:02,545 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 193 transitions. Word has length 91 [2023-11-19 07:56:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:02,546 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 193 transitions. [2023-11-19 07:56:02,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 07:56:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 193 transitions. [2023-11-19 07:56:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:56:02,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:02,548 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:02,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:56:02,548 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:02,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:02,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1179402723, now seen corresponding path program 1 times [2023-11-19 07:56:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:02,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306093036] [2023-11-19 07:56:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:02,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat