./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5c5d56cba99a6aed857c914dae8c8b6ecbf5d7f26fcada2d40cfcad19c68691 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:49:19,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:49:19,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:49:19,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:49:19,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:49:19,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:49:19,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:49:19,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:49:19,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:49:19,420 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:49:19,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:49:19,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:49:19,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:49:19,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:49:19,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:49:19,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:49:19,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:49:19,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:49:19,425 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:49:19,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:19,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:49:19,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:19,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:49:19,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:49:19,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:49:19,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:49:19,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:49:19,428 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5c5d56cba99a6aed857c914dae8c8b6ecbf5d7f26fcada2d40cfcad19c68691 [2024-11-24 00:49:19,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:49:19,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:49:19,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:49:19,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:49:19,731 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:49:19,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i [2024-11-24 00:49:22,847 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/data/d4e401454/899f9f58be2145ed8c6c5ad215054fee/FLAG5d157b488 [2024-11-24 00:49:23,170 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:49:23,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i [2024-11-24 00:49:23,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/data/d4e401454/899f9f58be2145ed8c6c5ad215054fee/FLAG5d157b488 [2024-11-24 00:49:23,195 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/data/d4e401454/899f9f58be2145ed8c6c5ad215054fee [2024-11-24 00:49:23,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:49:23,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:49:23,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:23,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:49:23,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:49:23,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f1348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23, skipping insertion in model container [2024-11-24 00:49:23,208 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:49:23,393 WARN L250 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_5eba1358-001e-49a2-b4bb-c250f7e62f5f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i[916,929] [2024-11-24 00:49:23,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:23,460 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:49:23,470 WARN L250 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_5eba1358-001e-49a2-b4bb-c250f7e62f5f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i[916,929] [2024-11-24 00:49:23,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:23,513 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:49:23,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23 WrapperNode [2024-11-24 00:49:23,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:23,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:23,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:49:23,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:49:23,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,569 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-24 00:49:23,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:23,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:49:23,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:49:23,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:49:23,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,622 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:49:23,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,626 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:49:23,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:49:23,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:49:23,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:49:23,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (1/1) ... [2024-11-24 00:49:23,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:23,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:23,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:49:23,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:49:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:49:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:49:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:49:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:49:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:49:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:49:23,802 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:49:23,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:49:24,101 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-24 00:49:24,101 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:49:24,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:49:24,113 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:49:24,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:24 BoogieIcfgContainer [2024-11-24 00:49:24,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:49:24,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:49:24,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:49:24,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:49:24,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:49:23" (1/3) ... [2024-11-24 00:49:24,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56192dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:24, skipping insertion in model container [2024-11-24 00:49:24,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:23" (2/3) ... [2024-11-24 00:49:24,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56192dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:24, skipping insertion in model container [2024-11-24 00:49:24,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:24" (3/3) ... [2024-11-24 00:49:24,124 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-27.i [2024-11-24 00:49:24,140 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:49:24,142 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-27.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:49:24,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:49:24,213 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6cc7d48f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:49:24,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:49:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 00:49:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:24,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:24,229 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:24,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:24,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1570629044, now seen corresponding path program 1 times [2024-11-24 00:49:24,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:24,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250940113] [2024-11-24 00:49:24,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:24,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-24 00:49:24,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250940113] [2024-11-24 00:49:24,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250940113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:24,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421852668] [2024-11-24 00:49:24,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:24,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:24,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:24,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:24,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:49:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:24,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:49:24,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-24 00:49:24,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:24,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421852668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:24,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:24,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:49:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613565939] [2024-11-24 00:49:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:24,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:49:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:24,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:49:24,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:49:24,775 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:49:24,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:24,798 INFO L93 Difference]: Finished difference Result 99 states and 167 transitions. [2024-11-24 00:49:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:49:24,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 109 [2024-11-24 00:49:24,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:24,807 INFO L225 Difference]: With dead ends: 99 [2024-11-24 00:49:24,807 INFO L226 Difference]: Without dead ends: 49 [2024-11-24 00:49:24,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:49:24,813 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:24,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-24 00:49:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-24 00:49:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 00:49:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2024-11-24 00:49:24,871 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 109 [2024-11-24 00:49:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:24,872 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2024-11-24 00:49:24,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:49:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2024-11-24 00:49:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:24,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:24,879 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:24,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:49:25,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:49:25,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:25,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash 868342326, now seen corresponding path program 1 times [2024-11-24 00:49:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:25,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118916498] [2024-11-24 00:49:25,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:49:32,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118916498] [2024-11-24 00:49:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118916498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:32,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:32,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:49:32,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214835903] [2024-11-24 00:49:32,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:32,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:49:32,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:32,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:49:32,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:32,226 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:33,171 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2024-11-24 00:49:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:49:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:49:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:33,175 INFO L225 Difference]: With dead ends: 110 [2024-11-24 00:49:33,175 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:49:33,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:49:33,176 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 59 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:33,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 387 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:49:33,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:49:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2024-11-24 00:49:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:49:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-24 00:49:33,207 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 109 [2024-11-24 00:49:33,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:33,208 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-24 00:49:33,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-24 00:49:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:33,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:33,214 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:33,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:49:33,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:33,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:33,216 INFO L85 PathProgramCache]: Analyzing trace with hash -906665036, now seen corresponding path program 1 times [2024-11-24 00:49:33,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:33,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263704206] [2024-11-24 00:49:33,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:33,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:49:38,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:38,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263704206] [2024-11-24 00:49:38,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263704206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:38,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:38,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:49:38,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959175477] [2024-11-24 00:49:38,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:38,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:49:38,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:38,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:49:38,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:38,922 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:39,644 INFO L93 Difference]: Finished difference Result 108 states and 140 transitions. [2024-11-24 00:49:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:49:39,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:49:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:39,647 INFO L225 Difference]: With dead ends: 108 [2024-11-24 00:49:39,648 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 00:49:39,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:49:39,652 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 83 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:39,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 294 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:49:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 00:49:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 75. [2024-11-24 00:49:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:49:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-24 00:49:39,674 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 109 [2024-11-24 00:49:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:39,675 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-24 00:49:39,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-24 00:49:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:39,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:39,678 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:39,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:49:39,679 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:39,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:39,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1569406904, now seen corresponding path program 1 times [2024-11-24 00:49:39,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:39,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105471559] [2024-11-24 00:49:39,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:39,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:49:41,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105471559] [2024-11-24 00:49:41,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105471559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:41,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:41,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:49:41,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986153372] [2024-11-24 00:49:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:41,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:49:41,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:41,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:49:41,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:41,714 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:42,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:42,308 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2024-11-24 00:49:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:49:42,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:49:42,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:42,312 INFO L225 Difference]: With dead ends: 185 [2024-11-24 00:49:42,312 INFO L226 Difference]: Without dead ends: 113 [2024-11-24 00:49:42,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:49:42,314 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 61 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:42,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 429 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:49:42,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-24 00:49:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 75. [2024-11-24 00:49:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 54 states have internal predecessors, (65), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-24 00:49:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2024-11-24 00:49:42,329 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 109 [2024-11-24 00:49:42,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:42,329 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2024-11-24 00:49:42,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2024-11-24 00:49:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:42,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:42,331 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:42,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:49:42,332 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:42,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:42,333 INFO L85 PathProgramCache]: Analyzing trace with hash -205600458, now seen corresponding path program 1 times [2024-11-24 00:49:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:42,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468657127] [2024-11-24 00:49:42,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:49:44,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:44,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468657127] [2024-11-24 00:49:44,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468657127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:44,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:44,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:49:44,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288102760] [2024-11-24 00:49:44,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:44,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:49:44,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:44,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:49:44,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:49:44,733 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:45,790 INFO L93 Difference]: Finished difference Result 152 states and 200 transitions. [2024-11-24 00:49:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:49:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-24 00:49:45,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:45,793 INFO L225 Difference]: With dead ends: 152 [2024-11-24 00:49:45,793 INFO L226 Difference]: Without dead ends: 150 [2024-11-24 00:49:45,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:49:45,795 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 104 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:45,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 400 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:49:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-24 00:49:45,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 129. [2024-11-24 00:49:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 89 states have internal predecessors, (105), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:49:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 177 transitions. [2024-11-24 00:49:45,825 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 177 transitions. Word has length 109 [2024-11-24 00:49:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:45,826 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 177 transitions. [2024-11-24 00:49:45,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 177 transitions. [2024-11-24 00:49:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:49:45,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:45,828 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:45,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:49:45,828 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:45,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 913248035, now seen corresponding path program 1 times [2024-11-24 00:49:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065519624] [2024-11-24 00:49:45,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:49:52,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065519624] [2024-11-24 00:49:52,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065519624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:52,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:52,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:49:52,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444423089] [2024-11-24 00:49:52,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:52,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:49:52,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:52,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:49:52,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:49:52,359 INFO L87 Difference]: Start difference. First operand 129 states and 177 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:54,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:54,564 INFO L93 Difference]: Finished difference Result 187 states and 242 transitions. [2024-11-24 00:49:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:49:54,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-24 00:49:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:54,567 INFO L225 Difference]: With dead ends: 187 [2024-11-24 00:49:54,567 INFO L226 Difference]: Without dead ends: 185 [2024-11-24 00:49:54,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:49:54,568 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 93 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:54,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 354 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:49:54,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-24 00:49:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 134. [2024-11-24 00:49:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 94 states have internal predecessors, (113), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:49:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 185 transitions. [2024-11-24 00:49:54,606 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 185 transitions. Word has length 110 [2024-11-24 00:49:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:54,606 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 185 transitions. [2024-11-24 00:49:54,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:49:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 185 transitions. [2024-11-24 00:49:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:49:54,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:54,611 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:54,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:49:54,612 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:54,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1722594661, now seen corresponding path program 1 times [2024-11-24 00:49:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:54,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061454015] [2024-11-24 00:49:54,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:03,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:03,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061454015] [2024-11-24 00:50:03,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061454015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:03,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:03,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:50:03,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152040953] [2024-11-24 00:50:03,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:03,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:50:03,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:03,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:50:03,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:03,992 INFO L87 Difference]: Start difference. First operand 134 states and 185 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:10,524 INFO L93 Difference]: Finished difference Result 182 states and 237 transitions. [2024-11-24 00:50:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:50:10,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-24 00:50:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:10,527 INFO L225 Difference]: With dead ends: 182 [2024-11-24 00:50:10,527 INFO L226 Difference]: Without dead ends: 180 [2024-11-24 00:50:10,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:50:10,528 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 72 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:10,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 483 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:50:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-24 00:50:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 134. [2024-11-24 00:50:10,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 94 states have internal predecessors, (113), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:50:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 185 transitions. [2024-11-24 00:50:10,554 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 185 transitions. Word has length 110 [2024-11-24 00:50:10,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:10,555 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 185 transitions. [2024-11-24 00:50:10,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:10,555 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 185 transitions. [2024-11-24 00:50:10,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:10,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:10,557 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:10,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:50:10,557 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:10,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:10,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2140231638, now seen corresponding path program 1 times [2024-11-24 00:50:10,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:10,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132800600] [2024-11-24 00:50:10,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:10,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:10,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:10,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132800600] [2024-11-24 00:50:10,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132800600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:10,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:10,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:50:10,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319856166] [2024-11-24 00:50:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:10,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:10,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:10,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:10,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:50:10,630 INFO L87 Difference]: Start difference. First operand 134 states and 185 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:10,689 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2024-11-24 00:50:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:50:10,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-24 00:50:10,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:10,692 INFO L225 Difference]: With dead ends: 365 [2024-11-24 00:50:10,692 INFO L226 Difference]: Without dead ends: 238 [2024-11-24 00:50:10,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:50:10,694 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 34 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:10,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 217 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:50:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-24 00:50:10,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2024-11-24 00:50:10,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 158 states have internal predecessors, (187), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:50:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2024-11-24 00:50:10,738 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 110 [2024-11-24 00:50:10,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:10,738 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2024-11-24 00:50:10,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:10,739 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2024-11-24 00:50:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:10,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:10,740 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:10,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:50:10,741 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:10,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:10,741 INFO L85 PathProgramCache]: Analyzing trace with hash 379728296, now seen corresponding path program 1 times [2024-11-24 00:50:10,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:10,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020326616] [2024-11-24 00:50:10,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:10,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:13,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:13,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020326616] [2024-11-24 00:50:13,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020326616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:13,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:13,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:50:13,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782780073] [2024-11-24 00:50:13,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:13,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:50:13,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:13,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:50:13,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:13,050 INFO L87 Difference]: Start difference. First operand 236 states and 327 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:13,940 INFO L93 Difference]: Finished difference Result 478 states and 650 transitions. [2024-11-24 00:50:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:50:13,941 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-24 00:50:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:13,943 INFO L225 Difference]: With dead ends: 478 [2024-11-24 00:50:13,943 INFO L226 Difference]: Without dead ends: 350 [2024-11-24 00:50:13,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:50:13,945 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 164 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:13,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 374 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:50:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-24 00:50:13,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 299. [2024-11-24 00:50:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 202 states have internal predecessors, (238), 87 states have call successors, (87), 10 states have call predecessors, (87), 10 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 00:50:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 412 transitions. [2024-11-24 00:50:14,002 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 412 transitions. Word has length 110 [2024-11-24 00:50:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:14,002 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 412 transitions. [2024-11-24 00:50:14,003 INFO L472 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 412 transitions. [2024-11-24 00:50:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:14,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:14,004 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:14,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:50:14,004 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:14,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:14,005 INFO L85 PathProgramCache]: Analyzing trace with hash 637893734, now seen corresponding path program 1 times [2024-11-24 00:50:14,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:14,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443508130] [2024-11-24 00:50:14,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:16,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:16,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443508130] [2024-11-24 00:50:16,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443508130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:16,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:16,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:50:16,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517654077] [2024-11-24 00:50:16,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:16,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:50:16,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:16,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:50:16,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:16,594 INFO L87 Difference]: Start difference. First operand 299 states and 412 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:50:17,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:17,720 INFO L93 Difference]: Finished difference Result 302 states and 414 transitions. [2024-11-24 00:50:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:50:17,722 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), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2024-11-24 00:50:17,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:17,724 INFO L225 Difference]: With dead ends: 302 [2024-11-24 00:50:17,724 INFO L226 Difference]: Without dead ends: 300 [2024-11-24 00:50:17,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:50:17,727 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 85 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:17,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 333 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-24 00:50:17,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2024-11-24 00:50:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 202 states have internal predecessors, (237), 87 states have call successors, (87), 10 states have call predecessors, (87), 10 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 00:50:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 411 transitions. [2024-11-24 00:50:17,785 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 411 transitions. Word has length 110 [2024-11-24 00:50:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:17,788 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 411 transitions. [2024-11-24 00:50:17,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 00:50:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 411 transitions. [2024-11-24 00:50:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:50:17,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:17,790 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:17,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:50:17,790 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:17,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:17,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1765204623, now seen corresponding path program 1 times [2024-11-24 00:50:17,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:17,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813608614] [2024-11-24 00:50:17,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:17,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:23,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813608614] [2024-11-24 00:50:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813608614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:23,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:23,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:50:23,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937753561] [2024-11-24 00:50:23,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:23,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:50:23,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:23,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:50:23,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:23,234 INFO L87 Difference]: Start difference. First operand 299 states and 411 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:26,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:26,241 INFO L93 Difference]: Finished difference Result 449 states and 601 transitions. [2024-11-24 00:50:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:50:26,241 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-24 00:50:26,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:26,244 INFO L225 Difference]: With dead ends: 449 [2024-11-24 00:50:26,244 INFO L226 Difference]: Without dead ends: 315 [2024-11-24 00:50:26,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:50:26,245 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 104 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:26,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 600 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:50:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-24 00:50:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 241. [2024-11-24 00:50:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 162 states have (on average 1.1666666666666667) internal successors, (189), 163 states have internal predecessors, (189), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:50:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 329 transitions. [2024-11-24 00:50:26,288 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 329 transitions. Word has length 111 [2024-11-24 00:50:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:26,289 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 329 transitions. [2024-11-24 00:50:26,289 INFO L472 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 329 transitions. [2024-11-24 00:50:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:50:26,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:26,291 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:26,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:50:26,291 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:26,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:26,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1763357581, now seen corresponding path program 1 times [2024-11-24 00:50:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:26,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716927563] [2024-11-24 00:50:26,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:26,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:31,252 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:31,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:31,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716927563] [2024-11-24 00:50:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716927563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:31,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:31,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:50:31,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321860059] [2024-11-24 00:50:31,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:31,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:50:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:31,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:50:31,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:31,254 INFO L87 Difference]: Start difference. First operand 241 states and 329 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:36,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:36,768 INFO L93 Difference]: Finished difference Result 306 states and 399 transitions. [2024-11-24 00:50:36,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:50:36,769 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-24 00:50:36,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:36,772 INFO L225 Difference]: With dead ends: 306 [2024-11-24 00:50:36,772 INFO L226 Difference]: Without dead ends: 304 [2024-11-24 00:50:36,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:50:36,773 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 85 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:36,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 550 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:50:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-24 00:50:36,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 240. [2024-11-24 00:50:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 161 states have (on average 1.1614906832298137) internal successors, (187), 162 states have internal predecessors, (187), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:50:36,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 327 transitions. [2024-11-24 00:50:36,816 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 327 transitions. Word has length 111 [2024-11-24 00:50:36,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:36,817 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 327 transitions. [2024-11-24 00:50:36,817 INFO L472 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 327 transitions. [2024-11-24 00:50:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:50:36,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:36,818 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:36,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:50:36,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:36,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:36,819 INFO L85 PathProgramCache]: Analyzing trace with hash -955857997, now seen corresponding path program 1 times [2024-11-24 00:50:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:36,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099844251] [2024-11-24 00:50:36,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:36,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099844251] [2024-11-24 00:50:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099844251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:41,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:41,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:50:41,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888338245] [2024-11-24 00:50:41,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:41,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:50:41,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:41,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:50:41,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:41,312 INFO L87 Difference]: Start difference. First operand 240 states and 327 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:43,166 INFO L93 Difference]: Finished difference Result 299 states and 391 transitions. [2024-11-24 00:50:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:50:43,167 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-24 00:50:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:43,169 INFO L225 Difference]: With dead ends: 299 [2024-11-24 00:50:43,169 INFO L226 Difference]: Without dead ends: 297 [2024-11-24 00:50:43,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:50:43,170 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 86 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:43,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 558 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:50:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-24 00:50:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 241. [2024-11-24 00:50:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 162 states have (on average 1.1666666666666667) internal successors, (189), 163 states have internal predecessors, (189), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:50:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 329 transitions. [2024-11-24 00:50:43,212 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 329 transitions. Word has length 111 [2024-11-24 00:50:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:43,212 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 329 transitions. [2024-11-24 00:50:43,212 INFO L472 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 329 transitions. [2024-11-24 00:50:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:50:43,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:43,214 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:43,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:50:43,214 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:43,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:43,214 INFO L85 PathProgramCache]: Analyzing trace with hash -954010955, now seen corresponding path program 1 times [2024-11-24 00:50:43,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:43,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828436342] [2024-11-24 00:50:43,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:43,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 00:50:47,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:47,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828436342] [2024-11-24 00:50:47,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828436342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:47,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:47,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:50:47,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103466626] [2024-11-24 00:50:47,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:47,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:50:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:47,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:50:47,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:47,722 INFO L87 Difference]: Start difference. First operand 241 states and 329 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:48,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:48,956 INFO L93 Difference]: Finished difference Result 297 states and 389 transitions. [2024-11-24 00:50:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:50:48,957 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-24 00:50:48,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:48,959 INFO L225 Difference]: With dead ends: 297 [2024-11-24 00:50:48,960 INFO L226 Difference]: Without dead ends: 295 [2024-11-24 00:50:48,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:50:48,961 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 82 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:48,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 494 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-24 00:50:48,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 238. [2024-11-24 00:50:48,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 159 states have (on average 1.1635220125786163) internal successors, (185), 160 states have internal predecessors, (185), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:50:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 325 transitions. [2024-11-24 00:50:49,001 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 325 transitions. Word has length 111 [2024-11-24 00:50:49,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:49,002 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 325 transitions. [2024-11-24 00:50:49,002 INFO L472 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 325 transitions. [2024-11-24 00:50:49,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-24 00:50:49,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:49,005 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 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] [2024-11-24 00:50:49,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:50:49,005 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:49,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash -12755988, now seen corresponding path program 1 times [2024-11-24 00:50:49,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:49,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038946852] [2024-11-24 00:50:49,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:49,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2281 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2272 trivial. 0 not checked. [2024-11-24 00:50:50,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:50,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038946852] [2024-11-24 00:50:50,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038946852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:50,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:50:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956417460] [2024-11-24 00:50:50,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:50,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:50:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:50,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:50:50,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:50:50,999 INFO L87 Difference]: Start difference. First operand 238 states and 325 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:51,481 INFO L93 Difference]: Finished difference Result 305 states and 396 transitions. [2024-11-24 00:50:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:50:51,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 215 [2024-11-24 00:50:51,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:51,484 INFO L225 Difference]: With dead ends: 305 [2024-11-24 00:50:51,484 INFO L226 Difference]: Without dead ends: 303 [2024-11-24 00:50:51,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:51,485 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 55 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:51,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 351 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:50:51,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-24 00:50:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 184. [2024-11-24 00:50:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 124 states have (on average 1.1693548387096775) internal successors, (145), 125 states have internal predecessors, (145), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:50:51,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2024-11-24 00:50:51,520 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 215 [2024-11-24 00:50:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:51,521 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2024-11-24 00:50:51,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 00:50:51,521 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2024-11-24 00:50:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 00:50:51,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:51,523 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 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] [2024-11-24 00:50:51,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:50:51,524 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:51,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash -457020364, now seen corresponding path program 1 times [2024-11-24 00:50:51,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:51,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633710277] [2024-11-24 00:50:51,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2281 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-24 00:50:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:54,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633710277] [2024-11-24 00:50:54,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633710277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:54,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694599552] [2024-11-24 00:50:54,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:54,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:54,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:54,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:54,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba1358-001e-49a2-b4bb-c250f7e62f5f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:50:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:54,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:50:54,458 INFO L279 TraceCheckSpWp]: Computing forward predicates...