./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd --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 64bit --witnessprinter.graph.data.programhash a80017fb9bc1e009e46bf96bd12fd41e3ea47875a44ea56fa6913c32098fbd12 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:52:02,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:52:02,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 12:52:02,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:52:02,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:52:02,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:52:02,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:52:02,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:52:02,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:52:02,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:52:02,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:52:02,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:52:02,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:52:02,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:52:02,382 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:52:02,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:52:02,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:52:02,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:52:02,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:52:02,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:52:02,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:52:02,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:52:02,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:52:02,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:52:02,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:52:02,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:52:02,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:52:02,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:52:02,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:52:02,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:52:02,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:52:02,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:52:02,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:52:02,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:52:02,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:52:02,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:52:02,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:52:02,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:52:02,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:52:02,386 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_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a80017fb9bc1e009e46bf96bd12fd41e3ea47875a44ea56fa6913c32098fbd12 [2024-11-13 12:52:02,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:52:02,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:52:02,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:52:02,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:52:02,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:52:02,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-back-serstep.c Unable to find full path for "g++" [2024-11-13 12:52:05,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:52:05,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:52:05,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-back-serstep.c [2024-11-13 12:52:05,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/data/1c2afc00b/bce106fa792849fa9f69e4a207ebd026/FLAG2843e95bf [2024-11-13 12:52:05,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/data/1c2afc00b/bce106fa792849fa9f69e4a207ebd026 [2024-11-13 12:52:05,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:52:05,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:52:05,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:52:05,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:52:05,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:52:05,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:52:05" (1/1) ... [2024-11-13 12:52:05,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217a5e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:05, skipping insertion in model container [2024-11-13 12:52:05,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:52:05" (1/1) ... [2024-11-13 12:52:05,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:52:06,100 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_0e76a17e-aed0-4514-958c-88dffa5dad1c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-back-serstep.c[1174,1187] [2024-11-13 12:52:06,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:52:06,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:52:06,392 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_0e76a17e-aed0-4514-958c-88dffa5dad1c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-back-serstep.c[1174,1187] [2024-11-13 12:52:06,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:52:06,592 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:52:06,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06 WrapperNode [2024-11-13 12:52:06,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:52:06,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:52:06,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:52:06,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:52:06,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:06,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:06,988 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1948 [2024-11-13 12:52:06,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:52:06,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:52:06,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:52:06,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:52:07,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,198 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]. [2024-11-13 12:52:07,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:52:07,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:52:07,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:52:07,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:52:07,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (1/1) ... [2024-11-13 12:52:07,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:52:07,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:07,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:52:07,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:52:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:52:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:52:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:52:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:52:07,875 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:52:07,878 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:52:11,749 INFO L? ?]: Removed 993 outVars from TransFormulas that were not future-live. [2024-11-13 12:52:11,750 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:52:11,800 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:52:11,800 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:52:11,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:52:11 BoogieIcfgContainer [2024-11-13 12:52:11,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:52:11,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:52:11,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:52:11,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:52:11,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:52:05" (1/3) ... [2024-11-13 12:52:11,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b2569e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:52:11, skipping insertion in model container [2024-11-13 12:52:11,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:06" (2/3) ... [2024-11-13 12:52:11,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b2569e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:52:11, skipping insertion in model container [2024-11-13 12:52:11,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:52:11" (3/3) ... [2024-11-13 12:52:11,822 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.4.prop1-back-serstep.c [2024-11-13 12:52:11,843 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:52:11,847 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.adding.4.prop1-back-serstep.c that has 1 procedures, 686 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:52:11,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:52:11,995 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;@79ae8977, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:52:11,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:52:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 686 states, 684 states have (on average 1.5014619883040936) internal successors, (1027), 685 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:12,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 12:52:12,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:12,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:12,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:12,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1356627832, now seen corresponding path program 1 times [2024-11-13 12:52:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:12,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935546656] [2024-11-13 12:52:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:12,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935546656] [2024-11-13 12:52:13,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935546656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:13,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:13,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:13,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471949355] [2024-11-13 12:52:13,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:13,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:13,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:13,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:13,563 INFO L87 Difference]: Start difference. First operand has 686 states, 684 states have (on average 1.5014619883040936) internal successors, (1027), 685 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:13,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:13,744 INFO L93 Difference]: Finished difference Result 1325 states and 1987 transitions. [2024-11-13 12:52:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:13,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-13 12:52:13,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:13,780 INFO L225 Difference]: With dead ends: 1325 [2024-11-13 12:52:13,781 INFO L226 Difference]: Without dead ends: 685 [2024-11-13 12:52:13,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:13,791 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:13,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3057 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:13,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-13 12:52:13,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2024-11-13 12:52:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 1.4985380116959064) internal successors, (1025), 684 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1025 transitions. [2024-11-13 12:52:13,876 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1025 transitions. Word has length 85 [2024-11-13 12:52:13,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:13,877 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1025 transitions. [2024-11-13 12:52:13,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1025 transitions. [2024-11-13 12:52:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 12:52:13,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:13,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:13,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:52:13,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:13,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 895905841, now seen corresponding path program 1 times [2024-11-13 12:52:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:13,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979180806] [2024-11-13 12:52:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:14,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:14,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:14,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979180806] [2024-11-13 12:52:14,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979180806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:14,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:14,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717694334] [2024-11-13 12:52:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:14,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:14,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:14,381 INFO L87 Difference]: Start difference. First operand 685 states and 1025 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:14,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:14,468 INFO L93 Difference]: Finished difference Result 1326 states and 1985 transitions. [2024-11-13 12:52:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-13 12:52:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:14,474 INFO L225 Difference]: With dead ends: 1326 [2024-11-13 12:52:14,477 INFO L226 Difference]: Without dead ends: 687 [2024-11-13 12:52:14,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:14,480 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:14,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3053 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-13 12:52:14,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2024-11-13 12:52:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.4970845481049562) internal successors, (1027), 686 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1027 transitions. [2024-11-13 12:52:14,534 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1027 transitions. Word has length 86 [2024-11-13 12:52:14,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:14,534 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1027 transitions. [2024-11-13 12:52:14,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1027 transitions. [2024-11-13 12:52:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 12:52:14,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:14,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:14,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:52:14,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:14,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:14,542 INFO L85 PathProgramCache]: Analyzing trace with hash 905311873, now seen corresponding path program 1 times [2024-11-13 12:52:14,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:14,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492609836] [2024-11-13 12:52:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:14,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:15,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:15,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492609836] [2024-11-13 12:52:15,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492609836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:15,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:15,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:52:15,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786505851] [2024-11-13 12:52:15,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:15,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:52:15,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:15,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:52:15,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:15,121 INFO L87 Difference]: Start difference. First operand 687 states and 1027 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:15,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:15,267 INFO L93 Difference]: Finished difference Result 1955 states and 2926 transitions. [2024-11-13 12:52:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:52:15,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-13 12:52:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:15,279 INFO L225 Difference]: With dead ends: 1955 [2024-11-13 12:52:15,279 INFO L226 Difference]: Without dead ends: 1314 [2024-11-13 12:52:15,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:15,282 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 928 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:15,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 4003 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-13 12:52:15,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 797. [2024-11-13 12:52:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 796 states have (on average 1.4962311557788945) internal successors, (1191), 796 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1191 transitions. [2024-11-13 12:52:15,333 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1191 transitions. Word has length 87 [2024-11-13 12:52:15,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:15,334 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1191 transitions. [2024-11-13 12:52:15,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1191 transitions. [2024-11-13 12:52:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-13 12:52:15,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:15,359 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:15,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:52:15,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash 196228026, now seen corresponding path program 1 times [2024-11-13 12:52:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:15,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000888577] [2024-11-13 12:52:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:15,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-13 12:52:17,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:17,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000888577] [2024-11-13 12:52:17,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000888577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:17,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:17,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:52:17,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833608282] [2024-11-13 12:52:17,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:17,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:52:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:52:17,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:17,608 INFO L87 Difference]: Start difference. First operand 797 states and 1191 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:17,693 INFO L93 Difference]: Finished difference Result 1442 states and 2155 transitions. [2024-11-13 12:52:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:17,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-13 12:52:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:17,704 INFO L225 Difference]: With dead ends: 1442 [2024-11-13 12:52:17,706 INFO L226 Difference]: Without dead ends: 801 [2024-11-13 12:52:17,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:17,711 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:17,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3053 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:17,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-13 12:52:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 797. [2024-11-13 12:52:17,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 796 states have (on average 1.4962311557788945) internal successors, (1191), 796 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1191 transitions. [2024-11-13 12:52:17,763 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1191 transitions. Word has length 392 [2024-11-13 12:52:17,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:17,767 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1191 transitions. [2024-11-13 12:52:17,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1191 transitions. [2024-11-13 12:52:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-13 12:52:17,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:17,782 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:17,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:52:17,783 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:17,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:17,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1597978465, now seen corresponding path program 1 times [2024-11-13 12:52:17,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:17,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531621820] [2024-11-13 12:52:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:17,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:20,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:20,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531621820] [2024-11-13 12:52:20,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531621820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:20,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:20,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:20,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718331135] [2024-11-13 12:52:20,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:20,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:20,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:20,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:20,042 INFO L87 Difference]: Start difference. First operand 797 states and 1191 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:20,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:20,903 INFO L93 Difference]: Finished difference Result 1997 states and 2986 transitions. [2024-11-13 12:52:20,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:52:20,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-13 12:52:20,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:20,908 INFO L225 Difference]: With dead ends: 1997 [2024-11-13 12:52:20,909 INFO L226 Difference]: Without dead ends: 797 [2024-11-13 12:52:20,911 INFO L431 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 [2024-11-13 12:52:20,912 INFO L432 NwaCegarLoop]: 1136 mSDtfsCounter, 502 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:20,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 3039 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:52:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-13 12:52:20,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-11-13 12:52:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 796 states have (on average 1.4949748743718594) internal successors, (1190), 796 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1190 transitions. [2024-11-13 12:52:20,940 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1190 transitions. Word has length 393 [2024-11-13 12:52:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:20,941 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1190 transitions. [2024-11-13 12:52:20,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1190 transitions. [2024-11-13 12:52:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-13 12:52:20,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:20,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:20,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:52:20,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:20,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash 24846299, now seen corresponding path program 1 times [2024-11-13 12:52:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:20,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427598907] [2024-11-13 12:52:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 12:52:22,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:22,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427598907] [2024-11-13 12:52:22,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427598907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:22,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:22,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:22,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112417105] [2024-11-13 12:52:22,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:22,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:22,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:22,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:22,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:22,737 INFO L87 Difference]: Start difference. First operand 797 states and 1190 transitions. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:22,809 INFO L93 Difference]: Finished difference Result 1446 states and 2159 transitions. [2024-11-13 12:52:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:22,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-11-13 12:52:22,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:22,815 INFO L225 Difference]: With dead ends: 1446 [2024-11-13 12:52:22,815 INFO L226 Difference]: Without dead ends: 801 [2024-11-13 12:52:22,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:22,820 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:22,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:22,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-13 12:52:22,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 799. [2024-11-13 12:52:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 798 states have (on average 1.493734335839599) internal successors, (1192), 798 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1192 transitions. [2024-11-13 12:52:22,854 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1192 transitions. Word has length 394 [2024-11-13 12:52:22,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:22,856 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1192 transitions. [2024-11-13 12:52:22,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:22,860 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1192 transitions. [2024-11-13 12:52:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-13 12:52:22,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:22,870 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:22,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:52:22,870 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:22,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1884428983, now seen corresponding path program 1 times [2024-11-13 12:52:22,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:22,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140519430] [2024-11-13 12:52:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:22,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 12:52:24,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:24,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140519430] [2024-11-13 12:52:24,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140519430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:24,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:24,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:52:24,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882804407] [2024-11-13 12:52:24,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:24,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:52:24,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:24,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:52:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:24,618 INFO L87 Difference]: Start difference. First operand 799 states and 1192 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:24,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:24,716 INFO L93 Difference]: Finished difference Result 1454 states and 2169 transitions. [2024-11-13 12:52:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:24,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-11-13 12:52:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:24,724 INFO L225 Difference]: With dead ends: 1454 [2024-11-13 12:52:24,724 INFO L226 Difference]: Without dead ends: 803 [2024-11-13 12:52:24,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:24,727 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4064 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:24,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4064 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-13 12:52:24,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 801. [2024-11-13 12:52:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 800 states have (on average 1.4925) internal successors, (1194), 800 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1194 transitions. [2024-11-13 12:52:24,756 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1194 transitions. Word has length 395 [2024-11-13 12:52:24,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:24,757 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1194 transitions. [2024-11-13 12:52:24,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:24,758 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1194 transitions. [2024-11-13 12:52:24,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-13 12:52:24,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:24,767 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:24,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:52:24,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:24,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:24,769 INFO L85 PathProgramCache]: Analyzing trace with hash -348725598, now seen corresponding path program 1 times [2024-11-13 12:52:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695049621] [2024-11-13 12:52:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:24,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 12:52:26,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:26,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695049621] [2024-11-13 12:52:26,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695049621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:26,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:52:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068959009] [2024-11-13 12:52:26,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:52:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:52:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:26,275 INFO L87 Difference]: Start difference. First operand 801 states and 1194 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:26,372 INFO L93 Difference]: Finished difference Result 1462 states and 2179 transitions. [2024-11-13 12:52:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 396 [2024-11-13 12:52:26,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:26,379 INFO L225 Difference]: With dead ends: 1462 [2024-11-13 12:52:26,380 INFO L226 Difference]: Without dead ends: 805 [2024-11-13 12:52:26,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:52:26,382 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4064 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:26,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4064 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:26,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-13 12:52:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 803. [2024-11-13 12:52:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 1.4912718204488777) internal successors, (1196), 802 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1196 transitions. [2024-11-13 12:52:26,413 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1196 transitions. Word has length 396 [2024-11-13 12:52:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:26,414 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1196 transitions. [2024-11-13 12:52:26,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1196 transitions. [2024-11-13 12:52:26,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-13 12:52:26,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:26,426 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:26,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:52:26,426 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:26,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:26,427 INFO L85 PathProgramCache]: Analyzing trace with hash 766483312, now seen corresponding path program 1 times [2024-11-13 12:52:26,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244434505] [2024-11-13 12:52:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:26,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 12:52:27,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:27,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244434505] [2024-11-13 12:52:27,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244434505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:27,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:27,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:27,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789132031] [2024-11-13 12:52:27,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:27,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:27,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:27,794 INFO L87 Difference]: Start difference. First operand 803 states and 1196 transitions. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:27,883 INFO L93 Difference]: Finished difference Result 1478 states and 2201 transitions. [2024-11-13 12:52:27,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:27,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 397 [2024-11-13 12:52:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:27,891 INFO L225 Difference]: With dead ends: 1478 [2024-11-13 12:52:27,892 INFO L226 Difference]: Without dead ends: 815 [2024-11-13 12:52:27,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:27,895 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 4 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:27,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:27,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-11-13 12:52:27,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 809. [2024-11-13 12:52:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 808 states have (on average 1.49009900990099) internal successors, (1204), 808 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1204 transitions. [2024-11-13 12:52:27,931 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1204 transitions. Word has length 397 [2024-11-13 12:52:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:27,934 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1204 transitions. [2024-11-13 12:52:27,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1204 transitions. [2024-11-13 12:52:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-13 12:52:27,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:27,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:27,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:52:27,947 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:27,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1907570352, now seen corresponding path program 1 times [2024-11-13 12:52:27,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:27,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475973934] [2024-11-13 12:52:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:27,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 12:52:29,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:29,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475973934] [2024-11-13 12:52:29,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475973934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:29,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:29,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:29,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28435919] [2024-11-13 12:52:29,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:29,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:29,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:29,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:29,204 INFO L87 Difference]: Start difference. First operand 809 states and 1204 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:29,293 INFO L93 Difference]: Finished difference Result 1498 states and 2229 transitions. [2024-11-13 12:52:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:29,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 398 [2024-11-13 12:52:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:29,299 INFO L225 Difference]: With dead ends: 1498 [2024-11-13 12:52:29,299 INFO L226 Difference]: Without dead ends: 821 [2024-11-13 12:52:29,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:29,302 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 4 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:29,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:29,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-13 12:52:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 815. [2024-11-13 12:52:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 814 states have (on average 1.488943488943489) internal successors, (1212), 814 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1212 transitions. [2024-11-13 12:52:29,331 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1212 transitions. Word has length 398 [2024-11-13 12:52:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:29,332 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1212 transitions. [2024-11-13 12:52:29,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1212 transitions. [2024-11-13 12:52:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-13 12:52:29,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:29,341 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:29,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:52:29,341 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:29,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:29,342 INFO L85 PathProgramCache]: Analyzing trace with hash 857671138, now seen corresponding path program 1 times [2024-11-13 12:52:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:29,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708980429] [2024-11-13 12:52:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 12:52:30,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:30,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708980429] [2024-11-13 12:52:30,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708980429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:30,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:30,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:30,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735393731] [2024-11-13 12:52:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:30,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:30,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:30,518 INFO L87 Difference]: Start difference. First operand 815 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:30,581 INFO L93 Difference]: Finished difference Result 1510 states and 2245 transitions. [2024-11-13 12:52:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 399 [2024-11-13 12:52:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:30,588 INFO L225 Difference]: With dead ends: 1510 [2024-11-13 12:52:30,588 INFO L226 Difference]: Without dead ends: 819 [2024-11-13 12:52:30,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:30,590 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:30,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:30,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-13 12:52:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 817. [2024-11-13 12:52:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 816 states have (on average 1.4877450980392157) internal successors, (1214), 816 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1214 transitions. [2024-11-13 12:52:30,653 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1214 transitions. Word has length 399 [2024-11-13 12:52:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:30,654 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1214 transitions. [2024-11-13 12:52:30,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1214 transitions. [2024-11-13 12:52:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-13 12:52:30,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:30,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:30,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:52:30,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:30,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:30,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2046815689, now seen corresponding path program 1 times [2024-11-13 12:52:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:30,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356575260] [2024-11-13 12:52:30,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:30,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 12:52:31,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:31,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356575260] [2024-11-13 12:52:31,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356575260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:31,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:31,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640338987] [2024-11-13 12:52:31,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:31,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:31,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:31,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:31,664 INFO L87 Difference]: Start difference. First operand 817 states and 1214 transitions. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:31,735 INFO L93 Difference]: Finished difference Result 1518 states and 2255 transitions. [2024-11-13 12:52:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:31,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2024-11-13 12:52:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:31,742 INFO L225 Difference]: With dead ends: 1518 [2024-11-13 12:52:31,742 INFO L226 Difference]: Without dead ends: 821 [2024-11-13 12:52:31,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:31,745 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:31,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3044 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-13 12:52:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 819. [2024-11-13 12:52:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 818 states have (on average 1.4865525672371638) internal successors, (1216), 818 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1216 transitions. [2024-11-13 12:52:31,772 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1216 transitions. Word has length 400 [2024-11-13 12:52:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:31,773 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1216 transitions. [2024-11-13 12:52:31,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:31,774 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1216 transitions. [2024-11-13 12:52:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-13 12:52:31,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:31,784 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:31,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:52:31,784 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:31,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:31,785 INFO L85 PathProgramCache]: Analyzing trace with hash -827473445, now seen corresponding path program 1 times [2024-11-13 12:52:31,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:31,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792507754] [2024-11-13 12:52:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 12:52:32,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:32,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792507754] [2024-11-13 12:52:32,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792507754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:32,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:32,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:32,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427682835] [2024-11-13 12:52:32,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:32,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:32,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:32,826 INFO L87 Difference]: Start difference. First operand 819 states and 1216 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:32,893 INFO L93 Difference]: Finished difference Result 1532 states and 2273 transitions. [2024-11-13 12:52:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:32,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2024-11-13 12:52:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:32,899 INFO L225 Difference]: With dead ends: 1532 [2024-11-13 12:52:32,899 INFO L226 Difference]: Without dead ends: 833 [2024-11-13 12:52:32,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:32,902 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 3 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:32,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3050 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-13 12:52:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 823. [2024-11-13 12:52:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.4866180048661801) internal successors, (1222), 822 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1222 transitions. [2024-11-13 12:52:32,932 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1222 transitions. Word has length 401 [2024-11-13 12:52:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:32,933 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1222 transitions. [2024-11-13 12:52:32,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1222 transitions. [2024-11-13 12:52:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-13 12:52:32,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:32,943 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:32,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:52:32,943 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:32,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1617450306, now seen corresponding path program 1 times [2024-11-13 12:52:32,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:32,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128397788] [2024-11-13 12:52:32,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:32,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 12:52:34,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:34,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128397788] [2024-11-13 12:52:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128397788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:34,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:34,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:52:34,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456673594] [2024-11-13 12:52:34,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:34,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:52:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:34,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:52:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:34,005 INFO L87 Difference]: Start difference. First operand 823 states and 1222 transitions. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:34,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:34,090 INFO L93 Difference]: Finished difference Result 1538 states and 2283 transitions. [2024-11-13 12:52:34,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:52:34,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2024-11-13 12:52:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:34,097 INFO L225 Difference]: With dead ends: 1538 [2024-11-13 12:52:34,097 INFO L226 Difference]: Without dead ends: 827 [2024-11-13 12:52:34,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:52:34,099 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 0 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:34,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3044 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:34,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-11-13 12:52:34,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 825. [2024-11-13 12:52:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.4854368932038835) internal successors, (1224), 824 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1224 transitions. [2024-11-13 12:52:34,135 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1224 transitions. Word has length 402 [2024-11-13 12:52:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:34,137 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1224 transitions. [2024-11-13 12:52:34,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:34,138 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1224 transitions. [2024-11-13 12:52:34,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-13 12:52:34,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:34,151 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:34,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:52:34,151 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:34,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1694897964, now seen corresponding path program 1 times [2024-11-13 12:52:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732245240] [2024-11-13 12:52:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:34,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:35,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:35,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732245240] [2024-11-13 12:52:35,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732245240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:35,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140710116] [2024-11-13 12:52:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:35,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:35,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:35,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:35,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:52:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:36,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 12:52:36,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:36,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:36,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140710116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:36,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:36,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:52:36,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386510247] [2024-11-13 12:52:36,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:36,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:36,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:36,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:36,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:36,968 INFO L87 Difference]: Start difference. First operand 825 states and 1224 transitions. Second operand has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:37,682 INFO L93 Difference]: Finished difference Result 2086 states and 3082 transitions. [2024-11-13 12:52:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:52:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 403 [2024-11-13 12:52:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:37,689 INFO L225 Difference]: With dead ends: 2086 [2024-11-13 12:52:37,689 INFO L226 Difference]: Without dead ends: 1350 [2024-11-13 12:52:37,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:52:37,692 INFO L432 NwaCegarLoop]: 1010 mSDtfsCounter, 1044 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:37,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 4747 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 12:52:37,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-11-13 12:52:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 825. [2024-11-13 12:52:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.4842233009708738) internal successors, (1223), 824 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1223 transitions. [2024-11-13 12:52:37,723 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1223 transitions. Word has length 403 [2024-11-13 12:52:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:37,723 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1223 transitions. [2024-11-13 12:52:37,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1223 transitions. [2024-11-13 12:52:37,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-13 12:52:37,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:37,733 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:37,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 12:52:37,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 12:52:37,934 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:37,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:37,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1935075672, now seen corresponding path program 1 times [2024-11-13 12:52:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:37,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146137092] [2024-11-13 12:52:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:37,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 34 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:39,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:39,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146137092] [2024-11-13 12:52:39,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146137092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:39,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358597116] [2024-11-13 12:52:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:39,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:39,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:39,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:39,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:52:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:40,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 12:52:40,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 12:52:40,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:40,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358597116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:40,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:40,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:52:40,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13182128] [2024-11-13 12:52:40,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:40,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:40,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:40,561 INFO L87 Difference]: Start difference. First operand 825 states and 1223 transitions. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:41,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:41,872 INFO L93 Difference]: Finished difference Result 2049 states and 3036 transitions. [2024-11-13 12:52:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:52:41,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 404 [2024-11-13 12:52:41,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:41,879 INFO L225 Difference]: With dead ends: 2049 [2024-11-13 12:52:41,879 INFO L226 Difference]: Without dead ends: 1378 [2024-11-13 12:52:41,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:52:41,882 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 933 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 4219 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:41,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 4219 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:52:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2024-11-13 12:52:41,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 827. [2024-11-13 12:52:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 826 states have (on average 1.4818401937046004) internal successors, (1224), 826 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:41,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1224 transitions. [2024-11-13 12:52:41,913 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1224 transitions. Word has length 404 [2024-11-13 12:52:41,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:41,914 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1224 transitions. [2024-11-13 12:52:41,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1224 transitions. [2024-11-13 12:52:41,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-13 12:52:41,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:41,924 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:41,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:52:42,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 12:52:42,126 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:42,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:42,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1482703366, now seen corresponding path program 1 times [2024-11-13 12:52:42,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:42,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40031158] [2024-11-13 12:52:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:42,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:43,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40031158] [2024-11-13 12:52:43,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40031158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000768937] [2024-11-13 12:52:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:43,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:43,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:43,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:43,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:52:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:44,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 12:52:44,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 12:52:44,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:44,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000768937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:44,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:44,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:52:44,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005455435] [2024-11-13 12:52:44,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:44,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:44,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:44,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:44,595 INFO L87 Difference]: Start difference. First operand 827 states and 1224 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:45,530 INFO L93 Difference]: Finished difference Result 2077 states and 3076 transitions. [2024-11-13 12:52:45,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:52:45,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2024-11-13 12:52:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:45,537 INFO L225 Difference]: With dead ends: 2077 [2024-11-13 12:52:45,537 INFO L226 Difference]: Without dead ends: 1390 [2024-11-13 12:52:45,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:52:45,539 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 1809 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:45,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 3479 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:52:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2024-11-13 12:52:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 841. [2024-11-13 12:52:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 840 states have (on average 1.4761904761904763) internal successors, (1240), 840 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:45,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1240 transitions. [2024-11-13 12:52:45,570 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1240 transitions. Word has length 405 [2024-11-13 12:52:45,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:45,570 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1240 transitions. [2024-11-13 12:52:45,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1240 transitions. [2024-11-13 12:52:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-11-13 12:52:45,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:45,575 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:45,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:52:45,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 12:52:45,776 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:45,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1994407883, now seen corresponding path program 1 times [2024-11-13 12:52:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:45,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634302370] [2024-11-13 12:52:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:46,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:46,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634302370] [2024-11-13 12:52:46,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634302370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:46,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543320049] [2024-11-13 12:52:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:46,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:46,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:46,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:46,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:52:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:47,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 12:52:47,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:48,366 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:48,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543320049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:48,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:48,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:52:48,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555014395] [2024-11-13 12:52:48,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:48,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:48,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:48,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:48,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:48,369 INFO L87 Difference]: Start difference. First operand 841 states and 1240 transitions. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:49,090 INFO L93 Difference]: Finished difference Result 2077 states and 3048 transitions. [2024-11-13 12:52:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:52:49,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 406 [2024-11-13 12:52:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:49,097 INFO L225 Difference]: With dead ends: 2077 [2024-11-13 12:52:49,097 INFO L226 Difference]: Without dead ends: 1406 [2024-11-13 12:52:49,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:52:49,100 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 1059 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:49,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 3733 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 12:52:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-13 12:52:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1086. [2024-11-13 12:52:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1085 states have (on average 1.4626728110599079) internal successors, (1587), 1085 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1587 transitions. [2024-11-13 12:52:49,134 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1587 transitions. Word has length 406 [2024-11-13 12:52:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:49,135 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1587 transitions. [2024-11-13 12:52:49,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1587 transitions. [2024-11-13 12:52:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-13 12:52:49,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:49,139 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:49,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 12:52:49,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 12:52:49,344 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:49,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1663279086, now seen corresponding path program 1 times [2024-11-13 12:52:49,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:49,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829746539] [2024-11-13 12:52:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:50,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:50,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829746539] [2024-11-13 12:52:50,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829746539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:50,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824798587] [2024-11-13 12:52:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:50,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:50,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:50,410 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:50,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:52:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:51,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 12:52:51,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:52,605 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:52,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:52,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824798587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:52,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:52,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:52:52,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81175807] [2024-11-13 12:52:52,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:52,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:52,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:52,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:52,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:52,613 INFO L87 Difference]: Start difference. First operand 1086 states and 1587 transitions. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:53,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:53,846 INFO L93 Difference]: Finished difference Result 2160 states and 3174 transitions. [2024-11-13 12:52:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:52:53,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 407 [2024-11-13 12:52:53,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:53,853 INFO L225 Difference]: With dead ends: 2160 [2024-11-13 12:52:53,853 INFO L226 Difference]: Without dead ends: 1324 [2024-11-13 12:52:53,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:52:53,855 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 1454 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:53,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 3071 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:52:53,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-13 12:52:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1322. [2024-11-13 12:52:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 1.469341408024224) internal successors, (1941), 1321 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1941 transitions. [2024-11-13 12:52:53,894 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1941 transitions. Word has length 407 [2024-11-13 12:52:53,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:53,895 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1941 transitions. [2024-11-13 12:52:53,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1941 transitions. [2024-11-13 12:52:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-13 12:52:53,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:53,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:53,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 12:52:54,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:54,102 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:54,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:54,103 INFO L85 PathProgramCache]: Analyzing trace with hash -19151698, now seen corresponding path program 1 times [2024-11-13 12:52:54,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:54,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719533465] [2024-11-13 12:52:54,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:54,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:55,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:55,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719533465] [2024-11-13 12:52:55,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719533465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:55,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884818360] [2024-11-13 12:52:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:55,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:55,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:55,180 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:55,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:52:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:56,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 12:52:56,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 12:52:56,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:56,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884818360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:56,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:56,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:52:56,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171900321] [2024-11-13 12:52:56,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:56,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:56,470 INFO L87 Difference]: Start difference. First operand 1322 states and 1941 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:57,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:57,333 INFO L93 Difference]: Finished difference Result 3304 states and 4867 transitions. [2024-11-13 12:52:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:52:57,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 407 [2024-11-13 12:52:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:57,341 INFO L225 Difference]: With dead ends: 3304 [2024-11-13 12:52:57,341 INFO L226 Difference]: Without dead ends: 2176 [2024-11-13 12:52:57,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:52:57,344 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 1802 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:57,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 3481 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:52:57,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2024-11-13 12:52:57,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 1322. [2024-11-13 12:52:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 1.4663133989401969) internal successors, (1937), 1321 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1937 transitions. [2024-11-13 12:52:57,385 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1937 transitions. Word has length 407 [2024-11-13 12:52:57,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:57,385 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1937 transitions. [2024-11-13 12:52:57,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1937 transitions. [2024-11-13 12:52:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-13 12:52:57,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:57,391 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:52:57,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 12:52:57,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:57,592 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:57,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:57,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2051459967, now seen corresponding path program 1 times [2024-11-13 12:52:57,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:57,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27091590] [2024-11-13 12:52:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:57,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:58,633 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:58,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:58,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27091590] [2024-11-13 12:52:58,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27091590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:58,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766738460] [2024-11-13 12:52:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:58,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:58,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:58,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:58,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 12:52:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:59,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 12:52:59,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:53:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:00,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:53:00,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766738460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:00,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:53:00,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:53:00,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574894642] [2024-11-13 12:53:00,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:00,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:53:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:53:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:00,255 INFO L87 Difference]: Start difference. First operand 1322 states and 1937 transitions. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:01,238 INFO L93 Difference]: Finished difference Result 3375 states and 4946 transitions. [2024-11-13 12:53:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:53:01,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 408 [2024-11-13 12:53:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:01,245 INFO L225 Difference]: With dead ends: 3375 [2024-11-13 12:53:01,246 INFO L226 Difference]: Without dead ends: 2303 [2024-11-13 12:53:01,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:53:01,248 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2058 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:01,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 3075 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:53:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2024-11-13 12:53:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 1826. [2024-11-13 12:53:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1825 states have (on average 1.4504109589041096) internal successors, (2647), 1825 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2647 transitions. [2024-11-13 12:53:01,296 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2647 transitions. Word has length 408 [2024-11-13 12:53:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:01,296 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2647 transitions. [2024-11-13 12:53:01,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2647 transitions. [2024-11-13 12:53:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-13 12:53:01,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:01,302 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:01,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 12:53:01,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:01,503 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:01,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:01,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1915333596, now seen corresponding path program 1 times [2024-11-13 12:53:01,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:01,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462497100] [2024-11-13 12:53:01,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:01,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:02,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:02,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462497100] [2024-11-13 12:53:02,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462497100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:53:02,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695370012] [2024-11-13 12:53:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:02,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:02,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:02,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:53:02,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 12:53:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:03,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 12:53:03,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:53:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:04,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:53:04,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695370012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:04,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:53:04,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 12:53:04,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711827345] [2024-11-13 12:53:04,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:04,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:53:04,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:04,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:53:04,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:04,570 INFO L87 Difference]: Start difference. First operand 1826 states and 2647 transitions. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:05,582 INFO L93 Difference]: Finished difference Result 3724 states and 5444 transitions. [2024-11-13 12:53:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:53:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2024-11-13 12:53:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:05,590 INFO L225 Difference]: With dead ends: 3724 [2024-11-13 12:53:05,591 INFO L226 Difference]: Without dead ends: 2300 [2024-11-13 12:53:05,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:53:05,595 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 1464 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:05,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 3072 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:53:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2024-11-13 12:53:05,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2298. [2024-11-13 12:53:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 2297 states have (on average 1.4606007836308228) internal successors, (3355), 2297 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3355 transitions. [2024-11-13 12:53:05,640 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3355 transitions. Word has length 409 [2024-11-13 12:53:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:05,641 INFO L471 AbstractCegarLoop]: Abstraction has 2298 states and 3355 transitions. [2024-11-13 12:53:05,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3355 transitions. [2024-11-13 12:53:05,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-13 12:53:05,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:05,649 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:05,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 12:53:05,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:05,849 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:05,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:05,850 INFO L85 PathProgramCache]: Analyzing trace with hash -869800655, now seen corresponding path program 1 times [2024-11-13 12:53:05,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:05,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097710773] [2024-11-13 12:53:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:05,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:06,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097710773] [2024-11-13 12:53:06,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097710773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:53:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901834164] [2024-11-13 12:53:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:06,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:06,916 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:53:06,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 12:53:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:07,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-13 12:53:07,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:53:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:10,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:53:10,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901834164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:10,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:53:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2024-11-13 12:53:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757313784] [2024-11-13 12:53:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:10,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 12:53:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 12:53:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-13 12:53:10,151 INFO L87 Difference]: Start difference. First operand 2298 states and 3355 transitions. Second operand has 16 states, 16 states have (on average 25.5625) internal successors, (409), 16 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:13,364 INFO L93 Difference]: Finished difference Result 6849 states and 10063 transitions. [2024-11-13 12:53:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 12:53:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 25.5625) internal successors, (409), 16 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2024-11-13 12:53:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:13,389 INFO L225 Difference]: With dead ends: 6849 [2024-11-13 12:53:13,389 INFO L226 Difference]: Without dead ends: 4953 [2024-11-13 12:53:13,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2024-11-13 12:53:13,394 INFO L432 NwaCegarLoop]: 1689 mSDtfsCounter, 2397 mSDsluCounter, 12682 mSDsCounter, 0 mSdLazyCounter, 4153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 14371 SdHoareTripleChecker+Invalid, 4159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:13,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 14371 Invalid, 4159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4153 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 12:53:13,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2024-11-13 12:53:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 3511. [2024-11-13 12:53:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3511 states, 3510 states have (on average 1.4649572649572649) internal successors, (5142), 3510 states have internal predecessors, (5142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 5142 transitions. [2024-11-13 12:53:13,465 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 5142 transitions. Word has length 409 [2024-11-13 12:53:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:13,466 INFO L471 AbstractCegarLoop]: Abstraction has 3511 states and 5142 transitions. [2024-11-13 12:53:13,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 25.5625) internal successors, (409), 16 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 5142 transitions. [2024-11-13 12:53:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-13 12:53:13,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:13,474 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:13,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 12:53:13,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 12:53:13,675 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:13,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2045345238, now seen corresponding path program 1 times [2024-11-13 12:53:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:13,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831195733] [2024-11-13 12:53:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:13,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:14,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:14,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831195733] [2024-11-13 12:53:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831195733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:53:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97029859] [2024-11-13 12:53:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:14,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:14,721 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:53:14,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 12:53:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:15,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 12:53:15,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:53:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:16,794 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:53:16,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97029859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:16,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:53:16,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-13 12:53:16,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477521250] [2024-11-13 12:53:16,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:16,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:53:16,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:16,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:53:16,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:53:16,796 INFO L87 Difference]: Start difference. First operand 3511 states and 5142 transitions. Second operand has 8 states, 8 states have (on average 51.25) internal successors, (410), 8 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:18,484 INFO L93 Difference]: Finished difference Result 7999 states and 11756 transitions. [2024-11-13 12:53:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:53:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 51.25) internal successors, (410), 8 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 410 [2024-11-13 12:53:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:18,495 INFO L225 Difference]: With dead ends: 7999 [2024-11-13 12:53:18,495 INFO L226 Difference]: Without dead ends: 4969 [2024-11-13 12:53:18,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:53:18,499 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1428 mSDsluCounter, 5753 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 7005 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:18,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 7005 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 12:53:18,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4969 states. [2024-11-13 12:53:18,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4969 to 4551. [2024-11-13 12:53:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 4550 states have (on average 1.4646153846153847) internal successors, (6664), 4550 states have internal predecessors, (6664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 6664 transitions. [2024-11-13 12:53:18,573 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 6664 transitions. Word has length 410 [2024-11-13 12:53:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:18,574 INFO L471 AbstractCegarLoop]: Abstraction has 4551 states and 6664 transitions. [2024-11-13 12:53:18,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 51.25) internal successors, (410), 8 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 6664 transitions. [2024-11-13 12:53:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-13 12:53:18,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:18,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:18,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 12:53:18,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 12:53:18,787 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:18,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1841786425, now seen corresponding path program 1 times [2024-11-13 12:53:18,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:18,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751589865] [2024-11-13 12:53:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:19,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:19,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751589865] [2024-11-13 12:53:19,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751589865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:53:19,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152057968] [2024-11-13 12:53:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:19,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:19,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:19,993 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:53:19,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 12:53:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:20,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 12:53:20,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:53:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 49 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:22,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:53:24,584 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 55 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:24,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152057968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:53:24,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:53:24,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16, 15] total 33 [2024-11-13 12:53:24,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212436221] [2024-11-13 12:53:24,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:53:24,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 12:53:24,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 12:53:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=957, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 12:53:24,589 INFO L87 Difference]: Start difference. First operand 4551 states and 6664 transitions. Second operand has 33 states, 33 states have (on average 29.151515151515152) internal successors, (962), 33 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:53:37,884 INFO L93 Difference]: Finished difference Result 38326 states and 56631 transitions. [2024-11-13 12:53:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2024-11-13 12:53:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 29.151515151515152) internal successors, (962), 33 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 410 [2024-11-13 12:53:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:53:38,035 INFO L225 Difference]: With dead ends: 38326 [2024-11-13 12:53:38,035 INFO L226 Difference]: Without dead ends: 30274 [2024-11-13 12:53:38,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9553 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2277, Invalid=26453, Unknown=0, NotChecked=0, Total=28730 [2024-11-13 12:53:38,073 INFO L432 NwaCegarLoop]: 3169 mSDtfsCounter, 8767 mSDsluCounter, 63113 mSDsCounter, 0 mSdLazyCounter, 11967 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8767 SdHoareTripleChecker+Valid, 66282 SdHoareTripleChecker+Invalid, 12093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 11967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:53:38,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8767 Valid, 66282 Invalid, 12093 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [126 Valid, 11967 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-13 12:53:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30274 states. [2024-11-13 12:53:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30274 to 14262. [2024-11-13 12:53:38,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14262 states, 14261 states have (on average 1.4688310777645326) internal successors, (20947), 14261 states have internal predecessors, (20947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14262 states to 14262 states and 20947 transitions. [2024-11-13 12:53:38,610 INFO L78 Accepts]: Start accepts. Automaton has 14262 states and 20947 transitions. Word has length 410 [2024-11-13 12:53:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:53:38,611 INFO L471 AbstractCegarLoop]: Abstraction has 14262 states and 20947 transitions. [2024-11-13 12:53:38,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 29.151515151515152) internal successors, (962), 33 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:38,612 INFO L276 IsEmpty]: Start isEmpty. Operand 14262 states and 20947 transitions. [2024-11-13 12:53:38,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-13 12:53:38,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:53:38,635 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:38,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 12:53:38,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 12:53:38,836 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:53:38,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1594190310, now seen corresponding path program 1 times [2024-11-13 12:53:38,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:38,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852836838] [2024-11-13 12:53:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:38,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:40,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:40,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852836838] [2024-11-13 12:53:40,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852836838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:53:40,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61937680] [2024-11-13 12:53:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:40,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:53:40,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:40,023 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:53:40,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 12:53:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:41,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 12:53:41,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:53:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:42,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:53:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:43,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61937680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:53:43,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:53:43,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 11] total 27 [2024-11-13 12:53:43,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676169846] [2024-11-13 12:53:43,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:53:43,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 12:53:43,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:43,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 12:53:43,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2024-11-13 12:53:43,748 INFO L87 Difference]: Start difference. First operand 14262 states and 20947 transitions. Second operand has 27 states, 27 states have (on average 40.851851851851855) internal successors, (1103), 27 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:28,333 INFO L93 Difference]: Finished difference Result 374920 states and 555525 transitions. [2024-11-13 12:54:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2024-11-13 12:54:28,333 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 40.851851851851855) internal successors, (1103), 27 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 411 [2024-11-13 12:54:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:29,135 INFO L225 Difference]: With dead ends: 374920 [2024-11-13 12:54:29,136 INFO L226 Difference]: Without dead ends: 361124 [2024-11-13 12:54:29,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 387 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63942 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=13269, Invalid=137663, Unknown=0, NotChecked=0, Total=150932 [2024-11-13 12:54:29,208 INFO L432 NwaCegarLoop]: 4548 mSDtfsCounter, 44840 mSDsluCounter, 64836 mSDsCounter, 0 mSdLazyCounter, 23315 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44840 SdHoareTripleChecker+Valid, 69384 SdHoareTripleChecker+Invalid, 23455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 23315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:29,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44840 Valid, 69384 Invalid, 23455 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [140 Valid, 23315 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2024-11-13 12:54:29,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361124 states. [2024-11-13 12:54:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361124 to 28357. [2024-11-13 12:54:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28357 states, 28356 states have (on average 1.4607490478205671) internal successors, (41421), 28356 states have internal predecessors, (41421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:31,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28357 states to 28357 states and 41421 transitions. [2024-11-13 12:54:31,679 INFO L78 Accepts]: Start accepts. Automaton has 28357 states and 41421 transitions. Word has length 411 [2024-11-13 12:54:31,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:31,680 INFO L471 AbstractCegarLoop]: Abstraction has 28357 states and 41421 transitions. [2024-11-13 12:54:31,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 40.851851851851855) internal successors, (1103), 27 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:31,681 INFO L276 IsEmpty]: Start isEmpty. Operand 28357 states and 41421 transitions. [2024-11-13 12:54:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-13 12:54:31,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:31,743 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:31,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 12:54:31,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e76a17e-aed0-4514-958c-88dffa5dad1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 12:54:31,951 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:31,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:31,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1756272768, now seen corresponding path program 1 times [2024-11-13 12:54:31,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:31,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798026364] [2024-11-13 12:54:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:31,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 12:54:33,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:33,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798026364] [2024-11-13 12:54:33,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798026364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:33,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:33,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:54:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575246203] [2024-11-13 12:54:33,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:33,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:54:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:54:33,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:54:33,212 INFO L87 Difference]: Start difference. First operand 28357 states and 41421 transitions. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:33,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:33,405 INFO L93 Difference]: Finished difference Result 53236 states and 78031 transitions. [2024-11-13 12:54:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:54:33,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 413 [2024-11-13 12:54:33,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:33,460 INFO L225 Difference]: With dead ends: 53236 [2024-11-13 12:54:33,463 INFO L226 Difference]: Without dead ends: 28537 [2024-11-13 12:54:33,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:54:33,513 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 0 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:33,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3047 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:54:33,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28537 states. [2024-11-13 12:54:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28537 to 28357. [2024-11-13 12:54:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28357 states, 28356 states have (on average 1.4607490478205671) internal successors, (41421), 28356 states have internal predecessors, (41421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28357 states to 28357 states and 41421 transitions. [2024-11-13 12:54:34,052 INFO L78 Accepts]: Start accepts. Automaton has 28357 states and 41421 transitions. Word has length 413 [2024-11-13 12:54:34,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:34,052 INFO L471 AbstractCegarLoop]: Abstraction has 28357 states and 41421 transitions. [2024-11-13 12:54:34,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:34,053 INFO L276 IsEmpty]: Start isEmpty. Operand 28357 states and 41421 transitions. [2024-11-13 12:54:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-13 12:54:34,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:34,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:34,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 12:54:34,094 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:34,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:34,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1629980409, now seen corresponding path program 1 times [2024-11-13 12:54:34,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:34,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581933646] [2024-11-13 12:54:34,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:34,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-13 12:54:34,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:34,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581933646] [2024-11-13 12:54:34,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581933646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:34,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:34,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:54:34,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174974778] [2024-11-13 12:54:34,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:34,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:54:34,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:54:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:54:34,905 INFO L87 Difference]: Start difference. First operand 28357 states and 41421 transitions. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:35,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:35,409 INFO L93 Difference]: Finished difference Result 53236 states and 78031 transitions. [2024-11-13 12:54:35,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:54:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 414 [2024-11-13 12:54:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:35,438 INFO L225 Difference]: With dead ends: 53236 [2024-11-13 12:54:35,438 INFO L226 Difference]: Without dead ends: 28537 [2024-11-13 12:54:35,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:54:35,456 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 0 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:35,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4055 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:54:35,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28537 states. [2024-11-13 12:54:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28537 to 28357. [2024-11-13 12:54:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28357 states, 28356 states have (on average 1.4607490478205671) internal successors, (41421), 28356 states have internal predecessors, (41421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28357 states to 28357 states and 41421 transitions. [2024-11-13 12:54:35,770 INFO L78 Accepts]: Start accepts. Automaton has 28357 states and 41421 transitions. Word has length 414 [2024-11-13 12:54:35,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:35,771 INFO L471 AbstractCegarLoop]: Abstraction has 28357 states and 41421 transitions. [2024-11-13 12:54:35,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 28357 states and 41421 transitions. [2024-11-13 12:54:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-13 12:54:35,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:35,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:35,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 12:54:35,807 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:35,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1535864832, now seen corresponding path program 1 times [2024-11-13 12:54:35,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:35,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37182811] [2024-11-13 12:54:35,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:35,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:37,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:37,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37182811] [2024-11-13 12:54:37,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37182811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:37,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:37,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:54:37,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089130003] [2024-11-13 12:54:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:37,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:37,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:37,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:37,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:37,318 INFO L87 Difference]: Start difference. First operand 28357 states and 41421 transitions. Second operand has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:38,497 INFO L93 Difference]: Finished difference Result 78847 states and 115446 transitions. [2024-11-13 12:54:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:54:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 415 [2024-11-13 12:54:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:38,548 INFO L225 Difference]: With dead ends: 78847 [2024-11-13 12:54:38,548 INFO L226 Difference]: Without dead ends: 54140 [2024-11-13 12:54:38,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:38,574 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2024 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:38,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 2769 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 12:54:38,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54140 states. [2024-11-13 12:54:39,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54140 to 40746. [2024-11-13 12:54:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40746 states, 40745 states have (on average 1.4478340900724016) internal successors, (58992), 40745 states have internal predecessors, (58992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:39,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40746 states to 40746 states and 58992 transitions. [2024-11-13 12:54:39,195 INFO L78 Accepts]: Start accepts. Automaton has 40746 states and 58992 transitions. Word has length 415 [2024-11-13 12:54:39,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:39,196 INFO L471 AbstractCegarLoop]: Abstraction has 40746 states and 58992 transitions. [2024-11-13 12:54:39,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:39,196 INFO L276 IsEmpty]: Start isEmpty. Operand 40746 states and 58992 transitions. [2024-11-13 12:54:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-13 12:54:39,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:39,266 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:39,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 12:54:39,267 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:39,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2017565812, now seen corresponding path program 1 times [2024-11-13 12:54:39,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:39,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634109730] [2024-11-13 12:54:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:39,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:41,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:41,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634109730] [2024-11-13 12:54:41,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634109730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:41,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:41,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:54:41,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098917984] [2024-11-13 12:54:41,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:41,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:41,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:41,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:41,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:41,259 INFO L87 Difference]: Start difference. First operand 40746 states and 58992 transitions. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:42,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:42,534 INFO L93 Difference]: Finished difference Result 111714 states and 162121 transitions. [2024-11-13 12:54:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:54:42,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 416 [2024-11-13 12:54:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:42,611 INFO L225 Difference]: With dead ends: 111714 [2024-11-13 12:54:42,611 INFO L226 Difference]: Without dead ends: 77591 [2024-11-13 12:54:42,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:42,645 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2284 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:42,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2284 Valid, 3075 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:54:42,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77591 states. [2024-11-13 12:54:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77591 to 69648. [2024-11-13 12:54:43,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69648 states, 69647 states have (on average 1.440320473243643) internal successors, (100314), 69647 states have internal predecessors, (100314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69648 states to 69648 states and 100314 transitions. [2024-11-13 12:54:43,936 INFO L78 Accepts]: Start accepts. Automaton has 69648 states and 100314 transitions. Word has length 416 [2024-11-13 12:54:43,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:43,936 INFO L471 AbstractCegarLoop]: Abstraction has 69648 states and 100314 transitions. [2024-11-13 12:54:43,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:43,936 INFO L276 IsEmpty]: Start isEmpty. Operand 69648 states and 100314 transitions. [2024-11-13 12:54:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-13 12:54:43,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:43,995 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:43,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 12:54:43,995 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:43,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:43,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1923306452, now seen corresponding path program 1 times [2024-11-13 12:54:43,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:43,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375942214] [2024-11-13 12:54:43,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:43,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:45,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:45,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375942214] [2024-11-13 12:54:45,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375942214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:45,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:45,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:54:45,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985628995] [2024-11-13 12:54:45,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:45,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:45,053 INFO L87 Difference]: Start difference. First operand 69648 states and 100314 transitions. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:46,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:46,916 INFO L93 Difference]: Finished difference Result 189223 states and 273188 transitions. [2024-11-13 12:54:46,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:54:46,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 417 [2024-11-13 12:54:46,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:47,029 INFO L225 Difference]: With dead ends: 189223 [2024-11-13 12:54:47,029 INFO L226 Difference]: Without dead ends: 132608 [2024-11-13 12:54:47,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:47,061 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 2348 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:47,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 3076 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 12:54:47,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132608 states. [2024-11-13 12:54:48,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132608 to 125532. [2024-11-13 12:54:48,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125532 states, 125531 states have (on average 1.4345301160669477) internal successors, (180078), 125531 states have internal predecessors, (180078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125532 states to 125532 states and 180078 transitions. [2024-11-13 12:54:48,827 INFO L78 Accepts]: Start accepts. Automaton has 125532 states and 180078 transitions. Word has length 417 [2024-11-13 12:54:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:48,828 INFO L471 AbstractCegarLoop]: Abstraction has 125532 states and 180078 transitions. [2024-11-13 12:54:48,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 125532 states and 180078 transitions. [2024-11-13 12:54:48,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-13 12:54:48,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:48,950 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:48,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 12:54:48,950 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:48,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:48,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1094443024, now seen corresponding path program 1 times [2024-11-13 12:54:48,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:48,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720032280] [2024-11-13 12:54:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:48,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:50,750 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:50,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:50,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720032280] [2024-11-13 12:54:50,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720032280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:50,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:50,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:54:50,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832921201] [2024-11-13 12:54:50,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:50,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:50,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:50,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:50,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:50,754 INFO L87 Difference]: Start difference. First operand 125532 states and 180078 transitions. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:52,994 INFO L93 Difference]: Finished difference Result 338957 states and 487398 transitions. [2024-11-13 12:54:52,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:54:52,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 418 [2024-11-13 12:54:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:53,202 INFO L225 Difference]: With dead ends: 338957 [2024-11-13 12:54:53,202 INFO L226 Difference]: Without dead ends: 238628 [2024-11-13 12:54:53,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:53,257 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 1665 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:53,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 3624 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:54:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238628 states. [2024-11-13 12:54:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238628 to 232500. [2024-11-13 12:54:55,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232500 states, 232499 states have (on average 1.4297093750940864) internal successors, (332406), 232499 states have internal predecessors, (332406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232500 states to 232500 states and 332406 transitions. [2024-11-13 12:54:56,790 INFO L78 Accepts]: Start accepts. Automaton has 232500 states and 332406 transitions. Word has length 418 [2024-11-13 12:54:56,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:56,791 INFO L471 AbstractCegarLoop]: Abstraction has 232500 states and 332406 transitions. [2024-11-13 12:54:56,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:54:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 232500 states and 332406 transitions. [2024-11-13 12:54:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-13 12:54:57,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:57,183 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:57,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 12:54:57,183 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:54:57,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1062351603, now seen corresponding path program 1 times [2024-11-13 12:54:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497547183] [2024-11-13 12:54:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:57,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497547183] [2024-11-13 12:54:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497547183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:58,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:58,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:54:58,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099386353] [2024-11-13 12:54:58,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:58,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:58,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:58,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:58,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:58,820 INFO L87 Difference]: Start difference. First operand 232500 states and 332406 transitions. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:55:01,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:01,244 INFO L93 Difference]: Finished difference Result 476816 states and 689453 transitions. [2024-11-13 12:55:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:55:01,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2024-11-13 12:55:01,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:01,514 INFO L225 Difference]: With dead ends: 476816 [2024-11-13 12:55:01,514 INFO L226 Difference]: Without dead ends: 293234 [2024-11-13 12:55:01,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:55:01,618 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 1390 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:01,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 3078 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:55:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293234 states. [2024-11-13 12:55:05,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293234 to 293184. [2024-11-13 12:55:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293184 states, 293183 states have (on average 1.4432146475068472) internal successors, (423126), 293183 states have internal predecessors, (423126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:55:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293184 states to 293184 states and 423126 transitions. [2024-11-13 12:55:06,145 INFO L78 Accepts]: Start accepts. Automaton has 293184 states and 423126 transitions. Word has length 419 [2024-11-13 12:55:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:55:06,145 INFO L471 AbstractCegarLoop]: Abstraction has 293184 states and 423126 transitions. [2024-11-13 12:55:06,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:55:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 293184 states and 423126 transitions. [2024-11-13 12:55:07,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-13 12:55:07,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:55:07,599 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:55:07,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 12:55:07,600 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:55:07,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:55:07,600 INFO L85 PathProgramCache]: Analyzing trace with hash 176013487, now seen corresponding path program 1 times [2024-11-13 12:55:07,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:55:07,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463836478] [2024-11-13 12:55:07,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:55:07,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:55:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:55:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:55:08,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:55:08,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463836478] [2024-11-13 12:55:08,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463836478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:55:08,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:55:08,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:55:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995465289] [2024-11-13 12:55:08,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:55:08,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:55:08,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:55:08,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:55:08,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:55:08,669 INFO L87 Difference]: Start difference. First operand 293184 states and 423126 transitions. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:55:11,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:55:11,023 INFO L93 Difference]: Finished difference Result 536865 states and 779234 transitions. [2024-11-13 12:55:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:55:11,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2024-11-13 12:55:11,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:55:11,284 INFO L225 Difference]: With dead ends: 536865 [2024-11-13 12:55:11,284 INFO L226 Difference]: Without dead ends: 292094 [2024-11-13 12:55:11,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:55:11,414 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 887 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:55:11,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1548 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]