./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/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_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/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_c574f865-692a-4acb-b244-8fae9c626b41/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 ec3847cd5673658302b62e6c9d30f5f024379aa30b6673222fdbc3270a2b4500 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:58:30,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:58:30,518 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:58:30,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:58:30,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:58:30,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:58:30,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:58:30,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:58:30,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:58:30,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:58:30,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:58:30,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:58:30,567 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:58:30,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:58:30,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:58:30,569 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:58:30,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:58:30,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:58:30,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:58:30,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:58:30,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:58:30,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:58:30,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:58:30,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:58:30,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:58:30,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:58:30,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:58:30,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:58:30,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:30,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:58:30,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:58:30,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:58:30,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:58:30,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:58:30,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:58:30,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:58:30,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:58:30,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:58:30,579 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:58:30,579 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_c574f865-692a-4acb-b244-8fae9c626b41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec3847cd5673658302b62e6c9d30f5f024379aa30b6673222fdbc3270a2b4500 [2023-11-06 22:58:30,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:30,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:30,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:30,908 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:30,908 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:30,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i [2023-11-06 22:58:34,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:34,888 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:34,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i [2023-11-06 22:58:34,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/data/b7ba64543/0622103190274984a38e1b7e7e8e4d63/FLAG6d47d5685 [2023-11-06 22:58:34,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/data/b7ba64543/0622103190274984a38e1b7e7e8e4d63 [2023-11-06 22:58:34,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:34,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:34,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:34,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:34,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:34,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:34" (1/1) ... [2023-11-06 22:58:34,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f5dcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:34, skipping insertion in model container [2023-11-06 22:58:34,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:34" (1/1) ... [2023-11-06 22:58:34,988 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:35,182 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_c574f865-692a-4acb-b244-8fae9c626b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i[916,929] [2023-11-06 22:58:35,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:35,255 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:35,270 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_c574f865-692a-4acb-b244-8fae9c626b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-32.i[916,929] [2023-11-06 22:58:35,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:35,336 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:35,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35 WrapperNode [2023-11-06 22:58:35,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:35,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:35,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:35,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:35,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,423 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-11-06 22:58:35,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:35,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:35,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:35,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:35,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:35,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:35,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:35,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:35,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (1/1) ... [2023-11-06 22:58:35,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:35,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:35,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:35,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:58:35,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:58:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:58:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:35,743 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:35,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:36,164 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:58:36,179 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:58:36,180 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:58:36,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:36 BoogieIcfgContainer [2023-11-06 22:58:36,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:58:36,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:58:36,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:58:36,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:58:36,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:34" (1/3) ... [2023-11-06 22:58:36,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232017a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:36, skipping insertion in model container [2023-11-06 22:58:36,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:35" (2/3) ... [2023-11-06 22:58:36,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232017a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:36, skipping insertion in model container [2023-11-06 22:58:36,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:36" (3/3) ... [2023-11-06 22:58:36,195 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-32.i [2023-11-06 22:58:36,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:58:36,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:58:36,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:58:36,290 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;@5f38ba56, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:58:36,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:58:36,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:58:36,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:58:36,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:36,319 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:36,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:36,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash 385929245, now seen corresponding path program 1 times [2023-11-06 22:58:36,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:36,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687363286] [2023-11-06 22:58:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:36,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:58:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:58:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:58:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:58:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:58:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:58:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:58:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:58:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:58:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:58:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:58:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:58:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:58:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:58:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:58:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:58:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:58:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:58:37,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:37,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687363286] [2023-11-06 22:58:37,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687363286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:37,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:37,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:58:37,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370055536] [2023-11-06 22:58:37,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:37,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:58:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:37,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:58:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:58:37,662 INFO L87 Difference]: Start difference. First operand has 55 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:58:37,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:37,934 INFO L93 Difference]: Finished difference Result 162 states and 287 transitions. [2023-11-06 22:58:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:58:37,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-11-06 22:58:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:37,958 INFO L225 Difference]: With dead ends: 162 [2023-11-06 22:58:37,958 INFO L226 Difference]: Without dead ends: 110 [2023-11-06 22:58:37,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:37,974 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 72 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:37,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 206 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:58:37,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-06 22:58:38,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2023-11-06 22:58:38,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:58:38,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions. [2023-11-06 22:58:38,091 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 113 [2023-11-06 22:58:38,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:38,097 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 145 transitions. [2023-11-06 22:58:38,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:58:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions. [2023-11-06 22:58:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:58:38,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:38,104 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:38,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:58:38,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:38,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:38,107 INFO L85 PathProgramCache]: Analyzing trace with hash -294129125, now seen corresponding path program 1 times [2023-11-06 22:58:38,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:38,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542986952] [2023-11-06 22:58:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:38,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:58:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:58:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:58:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:58:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:58:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:58:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:58:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:58:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:58:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:58:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:58:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:58:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:58:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:58:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:58:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:58:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:58:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:58:47,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:47,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542986952] [2023-11-06 22:58:47,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542986952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:47,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:47,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:58:47,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087135250] [2023-11-06 22:58:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:47,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:58:47,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:47,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:58:47,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:58:47,798 INFO L87 Difference]: Start difference. First operand 97 states and 145 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:58:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:51,673 INFO L93 Difference]: Finished difference Result 240 states and 355 transitions. [2023-11-06 22:58:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-06 22:58:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-11-06 22:58:51,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:51,678 INFO L225 Difference]: With dead ends: 240 [2023-11-06 22:58:51,678 INFO L226 Difference]: Without dead ends: 238 [2023-11-06 22:58:51,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=317, Invalid=873, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 22:58:51,688 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 217 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:51,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 623 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:58:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-06 22:58:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 107. [2023-11-06 22:58:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 68 states have (on average 1.25) internal successors, (85), 68 states have internal predecessors, (85), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:58:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 157 transitions. [2023-11-06 22:58:51,731 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 157 transitions. Word has length 113 [2023-11-06 22:58:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:51,732 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 157 transitions. [2023-11-06 22:58:51,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:58:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 157 transitions. [2023-11-06 22:58:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 22:58:51,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:51,735 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:51,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:58:51,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:51,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash -933556435, now seen corresponding path program 1 times [2023-11-06 22:58:51,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:51,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691253119] [2023-11-06 22:58:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:51,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:58:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:58:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:58:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:58:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:58:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:58:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:58:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:58:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:58:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:58:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:58:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:58:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:58:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:58:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:58:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:58:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:58:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:58:59,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:59,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691253119] [2023-11-06 22:58:59,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691253119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:59,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:59,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:58:59,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079989905] [2023-11-06 22:58:59,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:59,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:58:59,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:59,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:58:59,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:58:59,307 INFO L87 Difference]: Start difference. First operand 107 states and 157 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:01,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:01,933 INFO L93 Difference]: Finished difference Result 192 states and 277 transitions. [2023-11-06 22:59:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 22:59:01,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2023-11-06 22:59:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:01,937 INFO L225 Difference]: With dead ends: 192 [2023-11-06 22:59:01,937 INFO L226 Difference]: Without dead ends: 190 [2023-11-06 22:59:01,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=266, Invalid=604, Unknown=0, NotChecked=0, Total=870 [2023-11-06 22:59:01,939 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 180 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:01,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 492 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:59:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-06 22:59:01,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 108. [2023-11-06 22:59:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2023-11-06 22:59:01,993 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 114 [2023-11-06 22:59:01,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:01,994 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2023-11-06 22:59:01,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:01,994 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2023-11-06 22:59:02,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:59:02,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:02,002 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:59:02,003 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:02,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash 886190736, now seen corresponding path program 1 times [2023-11-06 22:59:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:02,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6182778] [2023-11-06 22:59:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:02,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:08,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:08,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6182778] [2023-11-06 22:59:08,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6182778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:08,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:08,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-06 22:59:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112530534] [2023-11-06 22:59:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:08,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:59:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:08,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:59:08,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:59:08,932 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:11,957 INFO L93 Difference]: Finished difference Result 177 states and 259 transitions. [2023-11-06 22:59:11,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 22:59:11,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2023-11-06 22:59:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:11,960 INFO L225 Difference]: With dead ends: 177 [2023-11-06 22:59:11,961 INFO L226 Difference]: Without dead ends: 175 [2023-11-06 22:59:11,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=237, Invalid=519, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:59:11,963 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 126 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:11,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 466 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:59:11,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-06 22:59:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 109. [2023-11-06 22:59:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2023-11-06 22:59:12,002 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 115 [2023-11-06 22:59:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:12,003 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2023-11-06 22:59:12,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:12,003 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2023-11-06 22:59:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:59:12,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:12,005 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:12,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:59:12,005 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:12,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:12,006 INFO L85 PathProgramCache]: Analyzing trace with hash 725593844, now seen corresponding path program 1 times [2023-11-06 22:59:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:12,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988715295] [2023-11-06 22:59:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:12,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,730 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:16,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:16,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988715295] [2023-11-06 22:59:16,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988715295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:16,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:16,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:59:16,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552873308] [2023-11-06 22:59:16,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:16,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:59:16,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:59:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:59:16,735 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:18,208 INFO L93 Difference]: Finished difference Result 178 states and 259 transitions. [2023-11-06 22:59:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:59:18,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2023-11-06 22:59:18,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:18,211 INFO L225 Difference]: With dead ends: 178 [2023-11-06 22:59:18,212 INFO L226 Difference]: Without dead ends: 176 [2023-11-06 22:59:18,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:59:18,214 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 153 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:18,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 675 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:59:18,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-06 22:59:18,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 110. [2023-11-06 22:59:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 163 transitions. [2023-11-06 22:59:18,262 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 163 transitions. Word has length 115 [2023-11-06 22:59:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:18,263 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 163 transitions. [2023-11-06 22:59:18,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 163 transitions. [2023-11-06 22:59:18,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:59:18,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:18,266 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:18,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:59:18,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:18,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:18,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2084428143, now seen corresponding path program 1 times [2023-11-06 22:59:18,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:18,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406284988] [2023-11-06 22:59:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:18,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:20,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:20,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406284988] [2023-11-06 22:59:20,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406284988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:20,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:20,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:59:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956832505] [2023-11-06 22:59:20,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:20,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:59:20,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:59:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:59:20,276 INFO L87 Difference]: Start difference. First operand 110 states and 163 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:22,261 INFO L93 Difference]: Finished difference Result 361 states and 521 transitions. [2023-11-06 22:59:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-06 22:59:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2023-11-06 22:59:22,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:22,264 INFO L225 Difference]: With dead ends: 361 [2023-11-06 22:59:22,264 INFO L226 Difference]: Without dead ends: 254 [2023-11-06 22:59:22,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-11-06 22:59:22,269 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 241 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:22,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 834 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:59:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-06 22:59:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 120. [2023-11-06 22:59:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 81 states have (on average 1.308641975308642) internal successors, (106), 81 states have internal predecessors, (106), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 178 transitions. [2023-11-06 22:59:22,329 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 178 transitions. Word has length 115 [2023-11-06 22:59:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:22,331 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 178 transitions. [2023-11-06 22:59:22,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 178 transitions. [2023-11-06 22:59:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:59:22,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:22,333 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:22,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:59:22,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:22,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -309420781, now seen corresponding path program 1 times [2023-11-06 22:59:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028931707] [2023-11-06 22:59:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:26,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:26,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028931707] [2023-11-06 22:59:26,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028931707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:26,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:26,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:59:26,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372393984] [2023-11-06 22:59:26,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:26,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:59:26,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:26,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:59:26,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:59:26,133 INFO L87 Difference]: Start difference. First operand 120 states and 178 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:29,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:29,495 INFO L93 Difference]: Finished difference Result 285 states and 407 transitions. [2023-11-06 22:59:29,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-06 22:59:29,496 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2023-11-06 22:59:29,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:29,499 INFO L225 Difference]: With dead ends: 285 [2023-11-06 22:59:29,499 INFO L226 Difference]: Without dead ends: 283 [2023-11-06 22:59:29,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2023-11-06 22:59:29,502 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 164 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:29,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 678 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 22:59:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-06 22:59:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 120. [2023-11-06 22:59:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 81 states have (on average 1.308641975308642) internal successors, (106), 81 states have internal predecessors, (106), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:29,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 178 transitions. [2023-11-06 22:59:29,539 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 178 transitions. Word has length 115 [2023-11-06 22:59:29,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:29,540 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 178 transitions. [2023-11-06 22:59:29,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 178 transitions. [2023-11-06 22:59:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-06 22:59:29,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:29,542 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:29,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:59:29,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:29,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:29,543 INFO L85 PathProgramCache]: Analyzing trace with hash 780241833, now seen corresponding path program 1 times [2023-11-06 22:59:29,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:29,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616222103] [2023-11-06 22:59:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:29,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:34,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:34,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616222103] [2023-11-06 22:59:34,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616222103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:34,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:34,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-06 22:59:34,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441947785] [2023-11-06 22:59:34,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:34,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:59:34,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:34,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:59:34,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:59:34,199 INFO L87 Difference]: Start difference. First operand 120 states and 178 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:36,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:36,105 INFO L93 Difference]: Finished difference Result 266 states and 388 transitions. [2023-11-06 22:59:36,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 22:59:36,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2023-11-06 22:59:36,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:36,108 INFO L225 Difference]: With dead ends: 266 [2023-11-06 22:59:36,108 INFO L226 Difference]: Without dead ends: 205 [2023-11-06 22:59:36,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:59:36,111 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 205 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:36,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 710 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:59:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-06 22:59:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 121. [2023-11-06 22:59:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 82 states have internal predecessors, (107), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:36,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 179 transitions. [2023-11-06 22:59:36,148 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 179 transitions. Word has length 116 [2023-11-06 22:59:36,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:36,149 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 179 transitions. [2023-11-06 22:59:36,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:36,150 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2023-11-06 22:59:36,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-06 22:59:36,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:36,151 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:36,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:59:36,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:36,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash -598251145, now seen corresponding path program 1 times [2023-11-06 22:59:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:36,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725168974] [2023-11-06 22:59:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:36,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:39,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:39,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725168974] [2023-11-06 22:59:39,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725168974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:39,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:39,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:59:39,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222087718] [2023-11-06 22:59:39,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:39,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:59:39,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:39,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:59:39,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:39,138 INFO L87 Difference]: Start difference. First operand 121 states and 179 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:42,222 INFO L93 Difference]: Finished difference Result 280 states and 401 transitions. [2023-11-06 22:59:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-06 22:59:42,223 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2023-11-06 22:59:42,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:42,226 INFO L225 Difference]: With dead ends: 280 [2023-11-06 22:59:42,226 INFO L226 Difference]: Without dead ends: 278 [2023-11-06 22:59:42,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=396, Invalid=1010, Unknown=0, NotChecked=0, Total=1406 [2023-11-06 22:59:42,228 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 131 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:42,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 850 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:59:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-11-06 22:59:42,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 124. [2023-11-06 22:59:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 85 states have (on average 1.3176470588235294) internal successors, (112), 85 states have internal predecessors, (112), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 184 transitions. [2023-11-06 22:59:42,268 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 184 transitions. Word has length 116 [2023-11-06 22:59:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:42,268 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 184 transitions. [2023-11-06 22:59:42,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 184 transitions. [2023-11-06 22:59:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-06 22:59:42,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:42,273 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:42,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:59:42,273 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:42,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:42,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1602400120, now seen corresponding path program 1 times [2023-11-06 22:59:42,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:42,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467421960] [2023-11-06 22:59:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:42,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 22:59:48,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:48,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467421960] [2023-11-06 22:59:48,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467421960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:48,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:48,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:59:48,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250013765] [2023-11-06 22:59:48,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:48,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:59:48,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:59:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:48,247 INFO L87 Difference]: Start difference. First operand 124 states and 184 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:51,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:51,790 INFO L93 Difference]: Finished difference Result 263 states and 384 transitions. [2023-11-06 22:59:51,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-06 22:59:51,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117 [2023-11-06 22:59:51,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:51,792 INFO L225 Difference]: With dead ends: 263 [2023-11-06 22:59:51,793 INFO L226 Difference]: Without dead ends: 261 [2023-11-06 22:59:51,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=346, Invalid=776, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:59:51,794 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 143 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:51,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 771 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 22:59:51,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-06 22:59:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 122. [2023-11-06 22:59:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 181 transitions. [2023-11-06 22:59:51,828 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 181 transitions. Word has length 117 [2023-11-06 22:59:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:51,829 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 181 transitions. [2023-11-06 22:59:51,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 181 transitions. [2023-11-06 22:59:51,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-06 22:59:51,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:51,833 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:51,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:59:51,834 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:51,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:51,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1723789679, now seen corresponding path program 1 times [2023-11-06 22:59:51,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:51,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930380356] [2023-11-06 22:59:51,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:51,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:59:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 22:59:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 22:59:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:51,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 22:59:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-06 22:59:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 22:59:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 22:59:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-06 22:59:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 22:59:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 22:59:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-06 22:59:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 22:59:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-06 22:59:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-06 22:59:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:59:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-06 22:59:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-06 22:59:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 22:59:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-11-06 22:59:52,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:52,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930380356] [2023-11-06 22:59:52,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930380356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:52,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:52,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:52,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532980145] [2023-11-06 22:59:52,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:52,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:52,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:52,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:52,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:52,044 INFO L87 Difference]: Start difference. First operand 122 states and 181 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-06 22:59:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:52,147 INFO L93 Difference]: Finished difference Result 179 states and 265 transitions. [2023-11-06 22:59:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 224 [2023-11-06 22:59:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:52,150 INFO L225 Difference]: With dead ends: 179 [2023-11-06 22:59:52,150 INFO L226 Difference]: Without dead ends: 118 [2023-11-06 22:59:52,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:52,153 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:52,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 70 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:52,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-06 22:59:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-06 22:59:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 79 states have internal predecessors, (101), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 173 transitions. [2023-11-06 22:59:52,186 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 173 transitions. Word has length 224 [2023-11-06 22:59:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:52,186 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 173 transitions. [2023-11-06 22:59:52,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-06 22:59:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 173 transitions. [2023-11-06 22:59:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-06 22:59:52,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:52,190 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:52,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:59:52,191 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:52,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1891119247, now seen corresponding path program 1 times [2023-11-06 22:59:52,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:52,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520125467] [2023-11-06 22:59:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:59:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:59:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:59:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:59:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:59:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:59:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 22:59:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 22:59:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 22:59:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-06 22:59:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 22:59:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 22:59:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-06 22:59:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 22:59:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 22:59:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-06 22:59:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 22:59:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-06 22:59:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-06 22:59:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 22:59:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-06 22:59:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-06 22:59:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 22:59:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2550 trivial. 0 not checked. [2023-11-06 22:59:55,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:55,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520125467] [2023-11-06 22:59:55,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520125467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:55,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:55,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:59:55,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7179525] [2023-11-06 22:59:55,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:55,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:59:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:59:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:59:55,968 INFO L87 Difference]: Start difference. First operand 118 states and 173 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:57,330 INFO L93 Difference]: Finished difference Result 250 states and 368 transitions. [2023-11-06 22:59:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:59:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 224 [2023-11-06 22:59:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:57,334 INFO L225 Difference]: With dead ends: 250 [2023-11-06 22:59:57,334 INFO L226 Difference]: Without dead ends: 248 [2023-11-06 22:59:57,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:59:57,336 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 88 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:57,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 575 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:59:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-06 22:59:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 120. [2023-11-06 22:59:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 81 states have internal predecessors, (104), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 22:59:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2023-11-06 22:59:57,379 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 224 [2023-11-06 22:59:57,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:57,380 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2023-11-06 22:59:57,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 22:59:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2023-11-06 22:59:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-06 22:59:57,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:57,389 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:57,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:59:57,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:57,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:57,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1910333639, now seen corresponding path program 1 times [2023-11-06 22:59:57,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:57,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997233520] [2023-11-06 22:59:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:57,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:00:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 23:00:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 23:00:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 23:00:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 23:00:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 23:00:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 23:00:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 23:00:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 23:00:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 23:00:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 23:00:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:00:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 23:00:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 23:00:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 23:00:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 23:00:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 23:00:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 23:00:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 23:00:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 23:00:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 23:00:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-06 23:00:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:00:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:00:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-06 23:00:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 23:00:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:00:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-06 23:00:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 23:00:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-06 23:00:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-06 23:00:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 23:00:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-06 23:00:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-06 23:00:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 23:00:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2550 trivial. 0 not checked. [2023-11-06 23:00:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:03,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997233520] [2023-11-06 23:00:03,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997233520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:03,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:03,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:00:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627076457] [2023-11-06 23:00:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:03,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:00:03,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:03,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:00:03,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:00:03,441 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:00:05,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:05,154 INFO L93 Difference]: Finished difference Result 266 states and 382 transitions. [2023-11-06 23:00:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 23:00:05,155 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 225 [2023-11-06 23:00:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:05,157 INFO L225 Difference]: With dead ends: 266 [2023-11-06 23:00:05,157 INFO L226 Difference]: Without dead ends: 264 [2023-11-06 23:00:05,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2023-11-06 23:00:05,159 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 97 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:05,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 392 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 23:00:05,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-06 23:00:05,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 120. [2023-11-06 23:00:05,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 81 states have internal predecessors, (104), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 23:00:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2023-11-06 23:00:05,201 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 225 [2023-11-06 23:00:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:05,201 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2023-11-06 23:00:05,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:00:05,202 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2023-11-06 23:00:05,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-06 23:00:05,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:05,205 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:05,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:00:05,206 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:00:05,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash -940290688, now seen corresponding path program 1 times [2023-11-06 23:00:05,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:05,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092185170] [2023-11-06 23:00:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:05,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:00:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 23:00:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 23:00:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 23:00:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 23:00:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 23:00:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 23:00:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 23:00:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 23:00:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 23:00:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 23:00:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:00:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 23:00:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 23:00:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 23:00:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 23:00:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 23:00:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 23:00:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 23:00:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 23:00:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 23:00:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-06 23:00:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:00:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:00:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-06 23:00:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 23:00:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:00:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-06 23:00:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 23:00:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-06 23:00:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-06 23:00:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 23:00:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-06 23:00:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-06 23:00:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 23:00:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2558 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2550 trivial. 0 not checked. [2023-11-06 23:00:07,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:07,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092185170] [2023-11-06 23:00:07,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092185170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:07,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:07,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:00:07,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561573489] [2023-11-06 23:00:07,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:07,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:00:07,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:07,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:00:07,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:00:07,232 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:00:08,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:08,223 INFO L93 Difference]: Finished difference Result 254 states and 370 transitions. [2023-11-06 23:00:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:00:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 225 [2023-11-06 23:00:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:08,226 INFO L225 Difference]: With dead ends: 254 [2023-11-06 23:00:08,226 INFO L226 Difference]: Without dead ends: 195 [2023-11-06 23:00:08,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:00:08,228 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 65 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:08,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 449 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:00:08,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-06 23:00:08,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 122. [2023-11-06 23:00:08,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 83 states have internal predecessors, (107), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 23:00:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 179 transitions. [2023-11-06 23:00:08,273 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 179 transitions. Word has length 225 [2023-11-06 23:00:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:08,273 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 179 transitions. [2023-11-06 23:00:08,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:00:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 179 transitions. [2023-11-06 23:00:08,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-06 23:00:08,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:08,276 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:08,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 23:00:08,277 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:00:08,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:08,277 INFO L85 PathProgramCache]: Analyzing trace with hash 670868484, now seen corresponding path program 1 times [2023-11-06 23:00:08,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:08,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45325176] [2023-11-06 23:00:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:08,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:00:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 23:00:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 23:00:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 23:00:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 23:00:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 23:00:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 23:00:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 23:00:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 23:00:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 23:00:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 23:00:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:00:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 23:00:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 23:00:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 23:00:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 23:00:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 23:00:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 23:00:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-06 23:00:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 23:00:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 23:00:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-06 23:00:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:00:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:00:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-06 23:00:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 23:00:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:00:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-06 23:00:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 23:00:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-06 23:00:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-06 23:00:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 23:00:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-06 23:00:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-06 23:00:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-06 23:00:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-11-06 23:00:25,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:25,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45325176] [2023-11-06 23:00:25,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45325176] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:00:25,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028762370] [2023-11-06 23:00:25,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:25,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:00:25,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:25,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:00:25,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c574f865-692a-4acb-b244-8fae9c626b41/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:00:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:25,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-06 23:00:25,352 INFO L285 TraceCheckSpWp]: Computing forward predicates...