./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 d07b7415c3fe9e96ce75813c6dc74e1ba61589ee27a287636eeb985665ada946 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:12:14,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:12:14,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:12:14,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:12:14,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:12:14,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:12:14,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:12:14,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:12:14,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:12:14,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:12:14,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:12:14,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:12:14,242 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:12:14,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:12:14,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:12:14,244 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:12:14,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:12:14,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:12:14,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:12:14,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:12:14,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:12:14,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:12:14,248 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:12:14,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:12:14,248 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:12:14,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:12:14,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:12:14,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:12:14,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:12:14,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:12:14,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:12:14,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:12:14,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:12:14,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:12:14,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:12:14,254 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:12:14,255 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:12:14,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:12:14,256 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:12:14,256 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_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07b7415c3fe9e96ce75813c6dc74e1ba61589ee27a287636eeb985665ada946 [2023-11-06 22:12:14,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:12:14,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:12:14,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:12:14,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:12:14,637 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:12:14,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i [2023-11-06 22:12:17,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:12:18,016 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:12:18,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i [2023-11-06 22:12:18,030 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/data/3a07f7221/e7b33aff1b3b4a9ab1347c454431092f/FLAG87e9ff440 [2023-11-06 22:12:18,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/data/3a07f7221/e7b33aff1b3b4a9ab1347c454431092f [2023-11-06 22:12:18,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:12:18,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:12:18,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:12:18,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:12:18,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:12:18,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f4b5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18, skipping insertion in model container [2023-11-06 22:12:18,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:12:18,296 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_4af478d2-4796-43eb-8a75-1a013732d68b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i[915,928] [2023-11-06 22:12:18,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:12:18,367 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:12:18,381 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_4af478d2-4796-43eb-8a75-1a013732d68b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-23.i[915,928] [2023-11-06 22:12:18,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:12:18,426 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:12:18,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18 WrapperNode [2023-11-06 22:12:18,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:12:18,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:12:18,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:12:18,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:12:18,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,495 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-06 22:12:18,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:12:18,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:12:18,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:12:18,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:12:18,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:12:18,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:12:18,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:12:18,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:12:18,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (1/1) ... [2023-11-06 22:12:18,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:12:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:18,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:12:18,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:12:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:12:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:12:18,681 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:12:18,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:12:18,987 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:12:18,995 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:12:18,999 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:12:19,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:19 BoogieIcfgContainer [2023-11-06 22:12:19,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:12:19,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:12:19,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:12:19,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:12:19,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:12:18" (1/3) ... [2023-11-06 22:12:19,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1f26a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:19, skipping insertion in model container [2023-11-06 22:12:19,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:18" (2/3) ... [2023-11-06 22:12:19,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1f26a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:19, skipping insertion in model container [2023-11-06 22:12:19,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:19" (3/3) ... [2023-11-06 22:12:19,017 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-23.i [2023-11-06 22:12:19,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:12:19,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:12:19,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:12:19,107 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=LoopsAndPotentialCycles, 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;@319d7e9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:12:19,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:12:19,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 42 states have internal predecessors, (60), 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) [2023-11-06 22:12:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:12:19,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:19,123 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] [2023-11-06 22:12:19,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:19,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1114948037, now seen corresponding path program 1 times [2023-11-06 22:12:19,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:19,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219000253] [2023-11-06 22:12:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:19,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:19,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:19,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219000253] [2023-11-06 22:12:19,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219000253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:19,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:19,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:19,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687795161] [2023-11-06 22:12:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:19,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:12:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:19,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:12:19,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:12:19,579 INFO L87 Difference]: Start difference. First operand has 58 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 42 states have internal predecessors, (60), 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) [2023-11-06 22:12:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:19,625 INFO L93 Difference]: Finished difference Result 109 states and 184 transitions. [2023-11-06 22:12:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:12:19,628 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 [2023-11-06 22:12:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:19,638 INFO L225 Difference]: With dead ends: 109 [2023-11-06 22:12:19,639 INFO L226 Difference]: Without dead ends: 54 [2023-11-06 22:12:19,644 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 [2023-11-06 22:12:19,649 INFO L413 NwaCegarLoop]: 81 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, 81 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 [2023-11-06 22:12:19,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:19,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-06 22:12:19,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-06 22:12:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2023-11-06 22:12:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 81 transitions. [2023-11-06 22:12:19,711 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 81 transitions. Word has length 89 [2023-11-06 22:12:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:19,712 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 81 transitions. [2023-11-06 22:12:19,712 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) [2023-11-06 22:12:19,713 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2023-11-06 22:12:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:12:19,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:19,721 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] [2023-11-06 22:12:19,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:12:19,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:19,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:19,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1253489413, now seen corresponding path program 1 times [2023-11-06 22:12:19,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:19,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164319667] [2023-11-06 22:12:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:19,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:20,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:20,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164319667] [2023-11-06 22:12:20,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164319667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:20,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:20,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:12:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409822579] [2023-11-06 22:12:20,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:20,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:20,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:20,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:20,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:20,576 INFO L87 Difference]: Start difference. First operand 54 states and 81 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:12:20,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:20,756 INFO L93 Difference]: Finished difference Result 133 states and 199 transitions. [2023-11-06 22:12:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:12:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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 [2023-11-06 22:12:20,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:20,760 INFO L225 Difference]: With dead ends: 133 [2023-11-06 22:12:20,760 INFO L226 Difference]: Without dead ends: 131 [2023-11-06 22:12:20,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:12:20,763 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 90 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:20,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 529 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-06 22:12:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 93. [2023-11-06 22:12:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.34375) internal successors, (86), 65 states have internal predecessors, (86), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 138 transitions. [2023-11-06 22:12:20,790 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 138 transitions. Word has length 89 [2023-11-06 22:12:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:20,791 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 138 transitions. [2023-11-06 22:12:20,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:12:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 138 transitions. [2023-11-06 22:12:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:12:20,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:20,794 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, 1] [2023-11-06 22:12:20,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:12:20,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:20,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:20,795 INFO L85 PathProgramCache]: Analyzing trace with hash -58973266, now seen corresponding path program 1 times [2023-11-06 22:12:20,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:20,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269326398] [2023-11-06 22:12:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:20,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:20,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269326398] [2023-11-06 22:12:20,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269326398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:20,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:20,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:20,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002018469] [2023-11-06 22:12:20,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:20,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:20,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:20,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:20,920 INFO L87 Difference]: Start difference. First operand 93 states and 138 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-06 22:12:20,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:20,960 INFO L93 Difference]: Finished difference Result 183 states and 267 transitions. [2023-11-06 22:12:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:20,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 92 [2023-11-06 22:12:20,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:20,964 INFO L225 Difference]: With dead ends: 183 [2023-11-06 22:12:20,967 INFO L226 Difference]: Without dead ends: 93 [2023-11-06 22:12:20,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:20,971 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 8 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:20,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 145 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-06 22:12:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 83. [2023-11-06 22:12:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 55 states have internal predecessors, (69), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2023-11-06 22:12:20,995 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 92 [2023-11-06 22:12:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:20,996 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2023-11-06 22:12:20,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-06 22:12:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2023-11-06 22:12:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:12:20,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:20,998 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, 1] [2023-11-06 22:12:20,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:12:20,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:20,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:20,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1916352601, now seen corresponding path program 1 times [2023-11-06 22:12:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:21,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620395035] [2023-11-06 22:12:21,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:21,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:21,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620395035] [2023-11-06 22:12:21,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620395035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:21,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:21,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:21,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828041811] [2023-11-06 22:12:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:21,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:21,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:21,134 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-06 22:12:21,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:21,168 INFO L93 Difference]: Finished difference Result 165 states and 241 transitions. [2023-11-06 22:12:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:21,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 92 [2023-11-06 22:12:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:21,171 INFO L225 Difference]: With dead ends: 165 [2023-11-06 22:12:21,171 INFO L226 Difference]: Without dead ends: 85 [2023-11-06 22:12:21,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:21,173 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 34 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:21,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 117 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-06 22:12:21,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2023-11-06 22:12:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 55 states have internal predecessors, (68), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2023-11-06 22:12:21,187 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 92 [2023-11-06 22:12:21,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:21,188 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2023-11-06 22:12:21,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-06 22:12:21,188 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2023-11-06 22:12:21,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-06 22:12:21,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:21,190 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, 1, 1, 1, 1] [2023-11-06 22:12:21,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:12:21,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:21,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:21,191 INFO L85 PathProgramCache]: Analyzing trace with hash -961366566, now seen corresponding path program 1 times [2023-11-06 22:12:21,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679939200] [2023-11-06 22:12:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:21,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:21,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:21,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679939200] [2023-11-06 22:12:21,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679939200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:21,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:21,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:12:21,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72359862] [2023-11-06 22:12:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:21,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:12:21,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:21,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:12:21,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:12:21,837 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2023-11-06 22:12:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:22,154 INFO L93 Difference]: Finished difference Result 146 states and 212 transitions. [2023-11-06 22:12:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:12:22,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 95 [2023-11-06 22:12:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:22,158 INFO L225 Difference]: With dead ends: 146 [2023-11-06 22:12:22,158 INFO L226 Difference]: Without dead ends: 144 [2023-11-06 22:12:22,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:12:22,160 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 58 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:22,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 764 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:12:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-06 22:12:22,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 93. [2023-11-06 22:12:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.28125) internal successors, (82), 65 states have internal predecessors, (82), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:22,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 134 transitions. [2023-11-06 22:12:22,181 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 134 transitions. Word has length 95 [2023-11-06 22:12:22,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:22,182 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 134 transitions. [2023-11-06 22:12:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2023-11-06 22:12:22,182 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 134 transitions. [2023-11-06 22:12:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 22:12:22,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:22,184 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, 1, 1, 1, 1, 1] [2023-11-06 22:12:22,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:12:22,184 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:22,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:22,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2017212149, now seen corresponding path program 1 times [2023-11-06 22:12:22,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:22,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852117004] [2023-11-06 22:12:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:22,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:22,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852117004] [2023-11-06 22:12:22,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852117004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:22,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:22,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:12:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291062931] [2023-11-06 22:12:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:12:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:12:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:12:22,519 INFO L87 Difference]: Start difference. First operand 93 states and 134 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2023-11-06 22:12:23,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:23,001 INFO L93 Difference]: Finished difference Result 174 states and 250 transitions. [2023-11-06 22:12:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:12:23,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 96 [2023-11-06 22:12:23,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:23,004 INFO L225 Difference]: With dead ends: 174 [2023-11-06 22:12:23,004 INFO L226 Difference]: Without dead ends: 172 [2023-11-06 22:12:23,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:12:23,006 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 81 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:23,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 825 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:12:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-06 22:12:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 94. [2023-11-06 22:12:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:23,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-11-06 22:12:23,039 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 96 [2023-11-06 22:12:23,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:23,041 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-11-06 22:12:23,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2023-11-06 22:12:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-11-06 22:12:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 22:12:23,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:23,047 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, 1, 1, 1, 1, 1] [2023-11-06 22:12:23,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:12:23,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:23,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1884728137, now seen corresponding path program 1 times [2023-11-06 22:12:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:23,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798953031] [2023-11-06 22:12:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:23,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798953031] [2023-11-06 22:12:23,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798953031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:23,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:23,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:12:23,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011203226] [2023-11-06 22:12:23,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:23,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:12:23,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:23,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:12:23,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:12:23,592 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2023-11-06 22:12:24,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:24,024 INFO L93 Difference]: Finished difference Result 176 states and 254 transitions. [2023-11-06 22:12:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:12:24,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 96 [2023-11-06 22:12:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:24,027 INFO L225 Difference]: With dead ends: 176 [2023-11-06 22:12:24,027 INFO L226 Difference]: Without dead ends: 174 [2023-11-06 22:12:24,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:12:24,034 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:24,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 798 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:12:24,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-06 22:12:24,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 102. [2023-11-06 22:12:24,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 74 states have internal predecessors, (97), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2023-11-06 22:12:24,069 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 96 [2023-11-06 22:12:24,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:24,070 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2023-11-06 22:12:24,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2023-11-06 22:12:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2023-11-06 22:12:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:12:24,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:24,075 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, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:24,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:12:24,075 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:24,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:24,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1680247759, now seen corresponding path program 1 times [2023-11-06 22:12:24,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:24,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902375969] [2023-11-06 22:12:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:24,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:24,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:24,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902375969] [2023-11-06 22:12:24,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902375969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:24,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:24,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699538686] [2023-11-06 22:12:24,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:24,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:12:24,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:24,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:12:24,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:24,235 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-11-06 22:12:24,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:24,327 INFO L93 Difference]: Finished difference Result 241 states and 353 transitions. [2023-11-06 22:12:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:24,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 97 [2023-11-06 22:12:24,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:24,330 INFO L225 Difference]: With dead ends: 241 [2023-11-06 22:12:24,330 INFO L226 Difference]: Without dead ends: 142 [2023-11-06 22:12:24,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:24,332 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 31 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:24,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 283 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-06 22:12:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 112. [2023-11-06 22:12:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 84 states have internal predecessors, (112), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions. [2023-11-06 22:12:24,347 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 97 [2023-11-06 22:12:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:24,348 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 164 transitions. [2023-11-06 22:12:24,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-11-06 22:12:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions. [2023-11-06 22:12:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:12:24,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:24,349 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, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:24,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:12:24,350 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:24,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:24,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1138119803, now seen corresponding path program 1 times [2023-11-06 22:12:24,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:24,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881601776] [2023-11-06 22:12:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:24,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:24,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:24,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881601776] [2023-11-06 22:12:24,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881601776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:24,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:24,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:24,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88703615] [2023-11-06 22:12:24,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:24,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:12:24,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:24,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:12:24,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:24,492 INFO L87 Difference]: Start difference. First operand 112 states and 164 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-11-06 22:12:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:24,592 INFO L93 Difference]: Finished difference Result 251 states and 367 transitions. [2023-11-06 22:12:24,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:24,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 97 [2023-11-06 22:12:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:24,594 INFO L225 Difference]: With dead ends: 251 [2023-11-06 22:12:24,594 INFO L226 Difference]: Without dead ends: 142 [2023-11-06 22:12:24,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:24,596 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 40 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:24,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 316 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:24,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-06 22:12:24,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 121. [2023-11-06 22:12:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 93 states have internal predecessors, (126), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:12:24,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2023-11-06 22:12:24,615 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 97 [2023-11-06 22:12:24,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:24,617 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2023-11-06 22:12:24,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-11-06 22:12:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2023-11-06 22:12:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-06 22:12:24,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:24,619 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:24,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:12:24,620 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:24,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1337702753, now seen corresponding path program 1 times [2023-11-06 22:12:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213949290] [2023-11-06 22:12:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:24,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:24,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:24,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213949290] [2023-11-06 22:12:24,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213949290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:24,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:24,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:24,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751798251] [2023-11-06 22:12:24,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:24,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:24,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:24,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:24,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:24,706 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-06 22:12:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:24,764 INFO L93 Difference]: Finished difference Result 277 states and 403 transitions. [2023-11-06 22:12:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:24,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 98 [2023-11-06 22:12:24,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:24,766 INFO L225 Difference]: With dead ends: 277 [2023-11-06 22:12:24,767 INFO L226 Difference]: Without dead ends: 159 [2023-11-06 22:12:24,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:24,768 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 37 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:24,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 155 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:24,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-06 22:12:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2023-11-06 22:12:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 119 states have internal predecessors, (152), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-06 22:12:24,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 216 transitions. [2023-11-06 22:12:24,788 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 216 transitions. Word has length 98 [2023-11-06 22:12:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:24,789 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 216 transitions. [2023-11-06 22:12:24,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-06 22:12:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 216 transitions. [2023-11-06 22:12:24,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-06 22:12:24,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:24,791 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:24,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:12:24,791 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:24,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash -284854447, now seen corresponding path program 1 times [2023-11-06 22:12:24,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302105753] [2023-11-06 22:12:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:24,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:24,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302105753] [2023-11-06 22:12:24,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302105753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:24,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:24,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:24,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859110468] [2023-11-06 22:12:24,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:24,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:24,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:24,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:24,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:24,879 INFO L87 Difference]: Start difference. First operand 153 states and 216 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-06 22:12:24,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:24,943 INFO L93 Difference]: Finished difference Result 314 states and 438 transitions. [2023-11-06 22:12:24,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 98 [2023-11-06 22:12:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:24,945 INFO L225 Difference]: With dead ends: 314 [2023-11-06 22:12:24,945 INFO L226 Difference]: Without dead ends: 164 [2023-11-06 22:12:24,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:24,947 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 46 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:24,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 139 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-06 22:12:24,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 136. [2023-11-06 22:12:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 101 states have internal predecessors, (122), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-06 22:12:24,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 186 transitions. [2023-11-06 22:12:24,968 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 186 transitions. Word has length 98 [2023-11-06 22:12:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:24,969 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 186 transitions. [2023-11-06 22:12:24,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-06 22:12:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 186 transitions. [2023-11-06 22:12:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-06 22:12:24,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:24,971 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:24,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:12:24,972 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:24,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -675888454, now seen corresponding path program 1 times [2023-11-06 22:12:24,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:24,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808648668] [2023-11-06 22:12:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:25,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:25,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808648668] [2023-11-06 22:12:25,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808648668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:25,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:25,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:12:25,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76520529] [2023-11-06 22:12:25,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:25,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:12:25,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:25,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:12:25,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:12:25,500 INFO L87 Difference]: Start difference. First operand 136 states and 186 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2023-11-06 22:12:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:25,984 INFO L93 Difference]: Finished difference Result 211 states and 287 transitions. [2023-11-06 22:12:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:12:25,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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 99 [2023-11-06 22:12:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:25,988 INFO L225 Difference]: With dead ends: 211 [2023-11-06 22:12:25,988 INFO L226 Difference]: Without dead ends: 209 [2023-11-06 22:12:25,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:12:25,989 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 59 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:25,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 967 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:12:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-06 22:12:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 159. [2023-11-06 22:12:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 118 states have (on average 1.194915254237288) internal successors, (141), 121 states have internal predecessors, (141), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 209 transitions. [2023-11-06 22:12:26,024 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 209 transitions. Word has length 99 [2023-11-06 22:12:26,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:26,025 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 209 transitions. [2023-11-06 22:12:26,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2023-11-06 22:12:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 209 transitions. [2023-11-06 22:12:26,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:26,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:26,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:26,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:12:26,028 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:26,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash 599145781, now seen corresponding path program 1 times [2023-11-06 22:12:26,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:26,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899136527] [2023-11-06 22:12:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:26,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:26,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:26,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899136527] [2023-11-06 22:12:26,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899136527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:26,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:26,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:12:26,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89719111] [2023-11-06 22:12:26,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:26,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:12:26,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:12:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:12:26,381 INFO L87 Difference]: Start difference. First operand 159 states and 209 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2023-11-06 22:12:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:26,791 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2023-11-06 22:12:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:12:26,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 100 [2023-11-06 22:12:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:26,795 INFO L225 Difference]: With dead ends: 242 [2023-11-06 22:12:26,795 INFO L226 Difference]: Without dead ends: 240 [2023-11-06 22:12:26,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:12:26,796 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 84 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:26,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1026 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:12:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-06 22:12:26,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 164. [2023-11-06 22:12:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 123 states have (on average 1.1951219512195121) internal successors, (147), 126 states have internal predecessors, (147), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2023-11-06 22:12:26,825 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 100 [2023-11-06 22:12:26,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:26,827 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2023-11-06 22:12:26,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2023-11-06 22:12:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2023-11-06 22:12:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:26,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:26,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:26,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:12:26,830 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:26,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash 857311219, now seen corresponding path program 1 times [2023-11-06 22:12:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:26,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52685869] [2023-11-06 22:12:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:26,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:27,349 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52685869] [2023-11-06 22:12:27,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52685869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:27,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:27,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:12:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316211934] [2023-11-06 22:12:27,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:27,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:12:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:12:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:12:27,352 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2023-11-06 22:12:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:27,866 INFO L93 Difference]: Finished difference Result 244 states and 322 transitions. [2023-11-06 22:12:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:12:27,867 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 100 [2023-11-06 22:12:27,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:27,869 INFO L225 Difference]: With dead ends: 244 [2023-11-06 22:12:27,869 INFO L226 Difference]: Without dead ends: 242 [2023-11-06 22:12:27,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:12:27,871 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 73 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:27,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1100 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:12:27,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-11-06 22:12:27,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 154. [2023-11-06 22:12:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 116 states have internal predecessors, (136), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2023-11-06 22:12:27,900 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 100 [2023-11-06 22:12:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:27,901 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2023-11-06 22:12:27,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2023-11-06 22:12:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2023-11-06 22:12:27,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:27,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:27,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:27,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:12:27,905 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:27,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:27,906 INFO L85 PathProgramCache]: Analyzing trace with hash -283906181, now seen corresponding path program 1 times [2023-11-06 22:12:27,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:27,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349904450] [2023-11-06 22:12:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:27,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:28,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349904450] [2023-11-06 22:12:28,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349904450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:28,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:28,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:28,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545285785] [2023-11-06 22:12:28,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:28,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:12:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:28,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:12:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:28,050 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:28,179 INFO L93 Difference]: Finished difference Result 327 states and 436 transitions. [2023-11-06 22:12:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:28,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 100 [2023-11-06 22:12:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:28,182 INFO L225 Difference]: With dead ends: 327 [2023-11-06 22:12:28,182 INFO L226 Difference]: Without dead ends: 194 [2023-11-06 22:12:28,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:28,184 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 29 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:28,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 200 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-06 22:12:28,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 165. [2023-11-06 22:12:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 127 states have internal predecessors, (152), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2023-11-06 22:12:28,210 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 100 [2023-11-06 22:12:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:28,210 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2023-11-06 22:12:28,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2023-11-06 22:12:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:28,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:28,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:28,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:12:28,213 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:28,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash -676933191, now seen corresponding path program 1 times [2023-11-06 22:12:28,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:28,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108574661] [2023-11-06 22:12:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:28,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:28,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:28,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108574661] [2023-11-06 22:12:28,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108574661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:28,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:28,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:28,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650119527] [2023-11-06 22:12:28,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:28,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:28,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:28,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:28,295 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:28,361 INFO L93 Difference]: Finished difference Result 354 states and 474 transitions. [2023-11-06 22:12:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:28,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 100 [2023-11-06 22:12:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:28,364 INFO L225 Difference]: With dead ends: 354 [2023-11-06 22:12:28,364 INFO L226 Difference]: Without dead ends: 210 [2023-11-06 22:12:28,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:28,366 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 39 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:28,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:28,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-06 22:12:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 177. [2023-11-06 22:12:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 136 states have (on average 1.2279411764705883) internal successors, (167), 139 states have internal predecessors, (167), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2023-11-06 22:12:28,392 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 100 [2023-11-06 22:12:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:28,393 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2023-11-06 22:12:28,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2023-11-06 22:12:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:28,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:28,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:28,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:12:28,395 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:28,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2102271563, now seen corresponding path program 1 times [2023-11-06 22:12:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:28,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260271452] [2023-11-06 22:12:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:28,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,524 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:28,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:28,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260271452] [2023-11-06 22:12:28,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260271452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:28,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:28,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:28,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537579530] [2023-11-06 22:12:28,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:28,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:12:28,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:28,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:12:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:12:28,527 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:28,688 INFO L93 Difference]: Finished difference Result 357 states and 472 transitions. [2023-11-06 22:12:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:12:28,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 100 [2023-11-06 22:12:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:28,693 INFO L225 Difference]: With dead ends: 357 [2023-11-06 22:12:28,693 INFO L226 Difference]: Without dead ends: 201 [2023-11-06 22:12:28,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:12:28,695 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 29 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:28,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 260 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:12:28,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-06 22:12:28,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 185. [2023-11-06 22:12:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 144 states have (on average 1.2291666666666667) internal successors, (177), 147 states have internal predecessors, (177), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 245 transitions. [2023-11-06 22:12:28,721 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 245 transitions. Word has length 100 [2023-11-06 22:12:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:28,722 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 245 transitions. [2023-11-06 22:12:28,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,722 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 245 transitions. [2023-11-06 22:12:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:28,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:28,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:28,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:12:28,724 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:28,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:28,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1304974535, now seen corresponding path program 1 times [2023-11-06 22:12:28,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:28,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577323103] [2023-11-06 22:12:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:28,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:28,810 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:12:28,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:28,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577323103] [2023-11-06 22:12:28,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577323103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:28,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:28,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:12:28,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015915913] [2023-11-06 22:12:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:28,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:28,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:28,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:28,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:28,812 INFO L87 Difference]: Start difference. First operand 185 states and 245 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:28,878 INFO L93 Difference]: Finished difference Result 365 states and 481 transitions. [2023-11-06 22:12:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:28,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 100 [2023-11-06 22:12:28,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:28,880 INFO L225 Difference]: With dead ends: 365 [2023-11-06 22:12:28,880 INFO L226 Difference]: Without dead ends: 201 [2023-11-06 22:12:28,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:28,883 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 41 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:28,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 144 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:12:28,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-06 22:12:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 173. [2023-11-06 22:12:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 132 states have (on average 1.1666666666666667) internal successors, (154), 135 states have internal predecessors, (154), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:12:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 222 transitions. [2023-11-06 22:12:28,907 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 222 transitions. Word has length 100 [2023-11-06 22:12:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:28,907 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 222 transitions. [2023-11-06 22:12:28,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-06 22:12:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 222 transitions. [2023-11-06 22:12:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:12:28,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:12:28,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:28,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:12:28,910 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:12:28,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 77005817, now seen corresponding path program 1 times [2023-11-06 22:12:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887129166] [2023-11-06 22:12:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:12:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:12:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:12:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:12:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:12:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:12:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:12:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:12:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:12:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:12:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:12:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:12:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:12:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:12:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-06 22:12:29,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887129166] [2023-11-06 22:12:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887129166] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034798431] [2023-11-06 22:12:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:29,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:29,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:29,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:29,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:12:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:29,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:12:29,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 144 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-11-06 22:12:29,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-06 22:12:30,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034798431] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:30,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-06 22:12:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316393500] [2023-11-06 22:12:30,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:30,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:12:30,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:30,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:12:30,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:12:30,261 INFO L87 Difference]: Start difference. First operand 173 states and 222 transitions. Second operand has 18 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:12:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:12:31,051 INFO L93 Difference]: Finished difference Result 325 states and 406 transitions. [2023-11-06 22:12:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:12:31,052 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 100 [2023-11-06 22:12:31,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:12:31,052 INFO L225 Difference]: With dead ends: 325 [2023-11-06 22:12:31,054 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:12:31,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 217 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=846, Unknown=0, NotChecked=0, Total=1056 [2023-11-06 22:12:31,056 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 232 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:12:31,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 824 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:12:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:12:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:12:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:12:31,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2023-11-06 22:12:31,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:12:31,058 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:12:31,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:12:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:12:31,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:12:31,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:12:31,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:12:31,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:31,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:12:41,631 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,632 INFO L895 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,632 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-06 22:12:41,632 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 22:12:41,632 INFO L895 garLoopResultBuilder]: At program point L19-3(line 19) the Hoare annotation is: (or (and (<= ~var_1_2~0 ~var_1_3~0) (= ~var_1_1~0 ~var_1_8~0) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0) (<= (+ ~var_1_3~0 1) ~var_1_2~0))) [2023-11-06 22:12:41,632 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 76 87) the Hoare annotation is: false [2023-11-06 22:12:41,632 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,632 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L895 garLoopResultBuilder]: At program point L61-1(line 61) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,633 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 71) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L895 garLoopResultBuilder]: At program point L79-2(lines 79 85) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0) (<= (+ ~var_1_3~0 1) ~var_1_2~0))) [2023-11-06 22:12:41,633 INFO L899 garLoopResultBuilder]: For program point L79-3(lines 79 85) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2023-11-06 22:12:41,633 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,633 INFO L895 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,634 INFO L895 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: (or (= |ULTIMATE.start_property_#res#1| 1) (= ~var_1_1~0 ~var_1_8~0)) [2023-11-06 22:12:41,634 INFO L895 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: (or (= |ULTIMATE.start_property_#res#1| 1) (= ~var_1_1~0 ~var_1_8~0)) [2023-11-06 22:12:41,634 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-06 22:12:41,635 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,635 INFO L899 garLoopResultBuilder]: For program point L73-1(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,635 INFO L899 garLoopResultBuilder]: For program point L73-3(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,635 INFO L899 garLoopResultBuilder]: For program point L73-5(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,635 INFO L899 garLoopResultBuilder]: For program point L73-7(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 46) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L73-9(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L73-11(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L73-12(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point L73-14(line 73) no Hoare annotation was computed. [2023-11-06 22:12:41,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-06 22:12:41,637 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,637 INFO L895 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,637 INFO L895 garLoopResultBuilder]: At program point property_returnLabel#1(lines 72 75) the Hoare annotation is: (or (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0) (<= (+ ~var_1_3~0 1) ~var_1_2~0)) (and (<= ~var_1_2~0 ~var_1_3~0) (<= 1 |ULTIMATE.start_property_#res#1|) (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256)))) [2023-11-06 22:12:41,637 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 45) no Hoare annotation was computed. [2023-11-06 22:12:41,637 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:12:41,637 INFO L895 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,637 INFO L895 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= |ULTIMATE.start_property_#res#1| 1) (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-11-06 22:12:41,637 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256)) [2023-11-06 22:12:41,638 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256)) [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34-4(line 34) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34-6(line 34) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34-8(line 34) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34-10(line 34) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L34-11(lines 34 42) no Hoare annotation was computed. [2023-11-06 22:12:41,638 INFO L899 garLoopResultBuilder]: For program point L68(lines 47 69) no Hoare annotation was computed. [2023-11-06 22:12:41,639 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2023-11-06 22:12:41,639 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-06 22:12:41,639 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-06 22:12:41,639 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-06 22:12:41,639 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-06 22:12:41,642 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:41,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:12:41,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:12:41 BoogieIcfgContainer [2023-11-06 22:12:41,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:12:41,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:12:41,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:12:41,666 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:12:41,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:19" (3/4) ... [2023-11-06 22:12:41,669 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:12:41,674 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-06 22:12:41,683 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-06 22:12:41,684 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:12:41,684 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:12:41,685 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:12:41,714 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((var_1_1 == var_1_8) && (var_1_7 == ((var_1_7 / 256) * 256))) || ((((\result == 1) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) [2023-11-06 22:12:41,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2)) || ((((var_1_2 <= var_1_3) && (1 <= \result)) && (var_1_1 == var_1_8)) && (var_1_7 == ((var_1_7 / 256) * 256)))) [2023-11-06 22:12:41,721 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((var_1_2 <= var_1_3) && (var_1_1 == var_1_8)) && !((cond == 0))) && (var_1_7 == ((var_1_7 / 256) * 256))) || (((((\result == 1) && (cond == 1)) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) [2023-11-06 22:12:41,761 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((var_1_1 == var_1_8) && (var_1_7 == ((var_1_7 / 256) * 256))) || ((((\result == 1) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) [2023-11-06 22:12:41,762 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2)) || ((((var_1_2 <= var_1_3) && (1 <= \result)) && (var_1_1 == var_1_8)) && (var_1_7 == ((var_1_7 / 256) * 256)))) [2023-11-06 22:12:41,763 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((var_1_2 <= var_1_3) && (var_1_1 == var_1_8)) && !((cond == 0))) && (var_1_7 == ((var_1_7 / 256) * 256))) || (((((\result == 1) && (cond == 1)) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) [2023-11-06 22:12:41,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:12:41,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:12:41,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:12:41,775 INFO L158 Benchmark]: Toolchain (without parser) took 23715.69ms. Allocated memory was 134.2MB in the beginning and 346.0MB in the end (delta: 211.8MB). Free memory was 91.5MB in the beginning and 126.8MB in the end (delta: -35.2MB). Peak memory consumption was 178.5MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,775 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:12:41,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.71ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 79.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.82ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 77.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,776 INFO L158 Benchmark]: Boogie Preprocessor took 29.66ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 76.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,777 INFO L158 Benchmark]: RCFGBuilder took 477.79ms. Allocated memory is still 134.2MB. Free memory was 75.7MB in the beginning and 60.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,782 INFO L158 Benchmark]: TraceAbstraction took 22658.53ms. Allocated memory was 134.2MB in the beginning and 346.0MB in the end (delta: 211.8MB). Free memory was 60.1MB in the beginning and 131.0MB in the end (delta: -70.9MB). Peak memory consumption was 165.9MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,782 INFO L158 Benchmark]: Witness Printer took 107.91ms. Allocated memory is still 346.0MB. Free memory was 131.0MB in the beginning and 126.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:12:41,787 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.71ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 79.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.82ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 77.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.66ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 76.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.79ms. Allocated memory is still 134.2MB. Free memory was 75.7MB in the beginning and 60.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 22658.53ms. Allocated memory was 134.2MB in the beginning and 346.0MB in the end (delta: 211.8MB). Free memory was 60.1MB in the beginning and 131.0MB in the end (delta: -70.9MB). Peak memory consumption was 165.9MB. Max. memory is 16.1GB. * Witness Printer took 107.91ms. Allocated memory is still 346.0MB. Free memory was 131.0MB in the beginning and 126.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 19, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1202 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1100 mSDsluCounter, 8837 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6773 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3098 IncrementalHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 2064 mSDtfsCounter, 3098 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 785 SyntacticMatches, 3 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=17, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 656 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 358 PreInvPairs, 428 NumberOfFragments, 399 HoareAnnotationTreeSize, 358 FomulaSimplifications, 517623 FormulaSimplificationTreeSizeReduction, 9.2s HoareSimplificationTime, 19 FomulaSimplificationsInter, 7173 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1938 NumberOfCodeBlocks, 1938 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2017 ConstructedInterpolants, 0 QuantifiedInterpolants, 3326 SizeOfPredicates, 17 NumberOfNonLiveVariables, 243 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 21 InterpolantComputations, 18 PerfectInterpolantSequences, 7620/7644 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: (((var_1_1 == var_1_8) && (var_1_7 == ((var_1_7 / 256) * 256))) || ((((\result == 1) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((\result == 1) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2)) || ((((var_1_2 <= var_1_3) && (1 <= \result)) && (var_1_1 == var_1_8)) && (var_1_7 == ((var_1_7 / 256) * 256)))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((var_1_2 <= var_1_3) && (var_1_1 == var_1_8)) && !((cond == 0))) && (var_1_7 == ((var_1_7 / 256) * 256))) || (((((\result == 1) && (cond == 1)) && ((var_1_7 % 256) == 0)) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:12:41,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4af478d2-4796-43eb-8a75-1a013732d68b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE