./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/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_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/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 32bit --witnessprinter.graph.data.programhash ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:52:05,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:52:05,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:52:05,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:52:05,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:52:05,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:52:05,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:52:05,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:52:05,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:52:05,573 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:52:05,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:52:05,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:52:05,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:52:05,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:52:05,574 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:52:05,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:52:05,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:52:05,575 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:52:05,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:52:05,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:52:05,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:52:05,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:52:05,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:52:05,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:52:05,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:52:05,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:52:05,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:52:05,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:52:05,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:52:05,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:52:05,579 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:52:05,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:52:05,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:52:05,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:52:05,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:52:05,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:52:05,580 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_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2024-11-13 12:52:05,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:52:05,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:52:05,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:52:05,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:52:05,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:52:05,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c Unable to find full path for "g++" [2024-11-13 12:52:07,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:52:08,267 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:52:08,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-13 12:52:08,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/data/05797a5cf/39b63d50d7914d2eb2f05c576b5095cc/FLAGf67a6d905 [2024-11-13 12:52:08,303 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/data/05797a5cf/39b63d50d7914d2eb2f05c576b5095cc [2024-11-13 12:52:08,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:52:08,309 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:52:08,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:52:08,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:52:08,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:52:08,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16649de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08, skipping insertion in model container [2024-11-13 12:52:08,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:52:08,615 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_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-13 12:52:08,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:52:08,647 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:52:08,736 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_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-13 12:52:08,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:52:08,761 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:52:08,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08 WrapperNode [2024-11-13 12:52:08,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:52:08,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:52:08,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:52:08,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:52:08,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,842 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 528 [2024-11-13 12:52:08,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:52:08,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:52:08,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:52:08,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:52:08,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,866 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,897 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 12:52:08,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:52:08,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:52:08,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:52:08,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:52:08,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (1/1) ... [2024-11-13 12:52:08,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:52:08,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:09,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:52:09,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:52:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:52:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:52:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:52:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:52:09,164 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:52:09,167 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:52:09,191 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 12:52:09,838 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2024-11-13 12:52:09,838 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2024-11-13 12:52:09,926 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-13 12:52:09,926 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:52:09,978 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:52:09,979 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:52:09,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:52:09 BoogieIcfgContainer [2024-11-13 12:52:09,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:52:09,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:52:09,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:52:09,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:52:09,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:52:08" (1/3) ... [2024-11-13 12:52:09,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3bc7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:52:09, skipping insertion in model container [2024-11-13 12:52:09,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:52:08" (2/3) ... [2024-11-13 12:52:09,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3bc7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:52:09, skipping insertion in model container [2024-11-13 12:52:09,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:52:09" (3/3) ... [2024-11-13 12:52:09,995 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2024-11-13 12:52:10,015 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:52:10,018 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG s3_clnt_3.BV.c.cil-1a.c that has 1 procedures, 134 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:52:10,107 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:52:10,130 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;@1b4f38c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:52:10,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:52:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 132 states have (on average 1.7196969696969697) internal successors, (227), 133 states have internal predecessors, (227), 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 12:52:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 12:52:10,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:10,148 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] [2024-11-13 12:52:10,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:10,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:10,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1562142586, now seen corresponding path program 1 times [2024-11-13 12:52:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:10,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777161712] [2024-11-13 12:52:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:10,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:10,490 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 12:52:10,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:10,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777161712] [2024-11-13 12:52:10,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777161712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:10,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:10,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59969478] [2024-11-13 12:52:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:10,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:10,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:10,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:10,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:10,535 INFO L87 Difference]: Start difference. First operand has 134 states, 132 states have (on average 1.7196969696969697) internal successors, (227), 133 states have internal predecessors, (227), 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 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 12:52:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:10,793 INFO L93 Difference]: Finished difference Result 263 states and 447 transitions. [2024-11-13 12:52:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2024-11-13 12:52:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:10,812 INFO L225 Difference]: With dead ends: 263 [2024-11-13 12:52:10,812 INFO L226 Difference]: Without dead ends: 121 [2024-11-13 12:52:10,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:10,820 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 7 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:10,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 336 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:10,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-13 12:52:10,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-13 12:52:10,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.525) internal successors, (183), 120 states have internal predecessors, (183), 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 12:52:10,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 183 transitions. [2024-11-13 12:52:10,880 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 183 transitions. Word has length 25 [2024-11-13 12:52:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:10,881 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 183 transitions. [2024-11-13 12:52:10,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 12:52:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 183 transitions. [2024-11-13 12:52:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 12:52:10,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:10,885 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 12:52:10,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:52:10,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:10,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1352255942, now seen corresponding path program 1 times [2024-11-13 12:52:10,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:10,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665491778] [2024-11-13 12:52:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:10,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:52:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:11,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665491778] [2024-11-13 12:52:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665491778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:11,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:11,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500997658] [2024-11-13 12:52:11,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:11,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:11,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:11,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:11,064 INFO L87 Difference]: Start difference. First operand 121 states and 183 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 12:52:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:11,303 INFO L93 Difference]: Finished difference Result 246 states and 376 transitions. [2024-11-13 12:52:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:11,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2024-11-13 12:52:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:11,305 INFO L225 Difference]: With dead ends: 246 [2024-11-13 12:52:11,306 INFO L226 Difference]: Without dead ends: 136 [2024-11-13 12:52:11,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:11,307 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 9 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:11,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 258 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-13 12:52:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-13 12:52:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.5037037037037038) internal successors, (203), 135 states have internal predecessors, (203), 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 12:52:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 203 transitions. [2024-11-13 12:52:11,321 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 203 transitions. Word has length 37 [2024-11-13 12:52:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:11,321 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 203 transitions. [2024-11-13 12:52:11,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 12:52:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 203 transitions. [2024-11-13 12:52:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 12:52:11,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:11,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 12:52:11,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:52:11,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:11,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash -742252125, now seen corresponding path program 1 times [2024-11-13 12:52:11,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:11,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488887799] [2024-11-13 12:52:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 12:52:11,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:11,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488887799] [2024-11-13 12:52:11,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488887799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:11,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:11,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:11,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739611372] [2024-11-13 12:52:11,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:11,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:11,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:11,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:11,537 INFO L87 Difference]: Start difference. First operand 136 states and 203 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 12:52:11,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:11,724 INFO L93 Difference]: Finished difference Result 278 states and 420 transitions. [2024-11-13 12:52:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:11,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2024-11-13 12:52:11,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:11,726 INFO L225 Difference]: With dead ends: 278 [2024-11-13 12:52:11,726 INFO L226 Difference]: Without dead ends: 153 [2024-11-13 12:52:11,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:11,728 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 10 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:11,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 271 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:11,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-13 12:52:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-13 12:52:11,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.480263157894737) internal successors, (225), 152 states have internal predecessors, (225), 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 12:52:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 225 transitions. [2024-11-13 12:52:11,739 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 225 transitions. Word has length 51 [2024-11-13 12:52:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:11,739 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 225 transitions. [2024-11-13 12:52:11,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 12:52:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 225 transitions. [2024-11-13 12:52:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 12:52:11,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:11,742 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:11,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:52:11,742 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:11,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash 393968085, now seen corresponding path program 1 times [2024-11-13 12:52:11,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:11,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518363844] [2024-11-13 12:52:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:11,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 12:52:11,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:11,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518363844] [2024-11-13 12:52:11,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518363844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:11,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:11,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:11,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084121260] [2024-11-13 12:52:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:11,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:11,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:11,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:11,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:11,959 INFO L87 Difference]: Start difference. First operand 153 states and 225 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:52:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:12,012 INFO L93 Difference]: Finished difference Result 434 states and 641 transitions. [2024-11-13 12:52:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:12,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 70 [2024-11-13 12:52:12,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:12,015 INFO L225 Difference]: With dead ends: 434 [2024-11-13 12:52:12,015 INFO L226 Difference]: Without dead ends: 292 [2024-11-13 12:52:12,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,019 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 134 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:12,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-13 12:52:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-13 12:52:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.4639175257731958) internal successors, (426), 291 states have internal predecessors, (426), 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 12:52:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 426 transitions. [2024-11-13 12:52:12,049 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 426 transitions. Word has length 70 [2024-11-13 12:52:12,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:12,050 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 426 transitions. [2024-11-13 12:52:12,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:52:12,050 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 426 transitions. [2024-11-13 12:52:12,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 12:52:12,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:12,056 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:12,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:52:12,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:12,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:12,057 INFO L85 PathProgramCache]: Analyzing trace with hash -944691348, now seen corresponding path program 1 times [2024-11-13 12:52:12,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:12,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392669503] [2024-11-13 12:52:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:12,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 12:52:12,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392669503] [2024-11-13 12:52:12,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392669503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:12,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:12,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:12,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610443924] [2024-11-13 12:52:12,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:12,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:12,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:12,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:12,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,191 INFO L87 Difference]: Start difference. First operand 292 states and 426 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 12:52:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:12,229 INFO L93 Difference]: Finished difference Result 594 states and 864 transitions. [2024-11-13 12:52:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:12,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 71 [2024-11-13 12:52:12,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:12,232 INFO L225 Difference]: With dead ends: 594 [2024-11-13 12:52:12,232 INFO L226 Difference]: Without dead ends: 313 [2024-11-13 12:52:12,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,235 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:12,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 365 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-13 12:52:12,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-13 12:52:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4519230769230769) internal successors, (453), 312 states have internal predecessors, (453), 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 12:52:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 453 transitions. [2024-11-13 12:52:12,263 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 453 transitions. Word has length 71 [2024-11-13 12:52:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:12,263 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 453 transitions. [2024-11-13 12:52:12,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 12:52:12,263 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 453 transitions. [2024-11-13 12:52:12,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 12:52:12,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:12,270 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:12,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:52:12,270 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:12,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:12,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1300888106, now seen corresponding path program 1 times [2024-11-13 12:52:12,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:12,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790956604] [2024-11-13 12:52:12,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:12,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 12:52:12,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:12,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790956604] [2024-11-13 12:52:12,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790956604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:12,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:12,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:12,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505187669] [2024-11-13 12:52:12,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:12,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:12,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:12,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:12,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,375 INFO L87 Difference]: Start difference. First operand 313 states and 453 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 12:52:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:12,406 INFO L93 Difference]: Finished difference Result 641 states and 924 transitions. [2024-11-13 12:52:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:12,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 71 [2024-11-13 12:52:12,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:12,411 INFO L225 Difference]: With dead ends: 641 [2024-11-13 12:52:12,411 INFO L226 Difference]: Without dead ends: 339 [2024-11-13 12:52:12,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,415 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 21 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:12,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 335 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-13 12:52:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-13 12:52:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.4378698224852071) internal successors, (486), 338 states have internal predecessors, (486), 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 12:52:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 486 transitions. [2024-11-13 12:52:12,434 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 486 transitions. Word has length 71 [2024-11-13 12:52:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:12,434 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 486 transitions. [2024-11-13 12:52:12,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 12:52:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 486 transitions. [2024-11-13 12:52:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 12:52:12,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:12,438 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-13 12:52:12,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:52:12,438 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:12,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash -10127339, now seen corresponding path program 1 times [2024-11-13 12:52:12,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:12,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119019287] [2024-11-13 12:52:12,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:12,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-13 12:52:12,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:12,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119019287] [2024-11-13 12:52:12,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119019287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:12,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:12,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:12,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967948125] [2024-11-13 12:52:12,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:12,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:12,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:12,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:12,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,552 INFO L87 Difference]: Start difference. First operand 339 states and 486 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 12:52:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:12,736 INFO L93 Difference]: Finished difference Result 683 states and 999 transitions. [2024-11-13 12:52:12,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:12,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 88 [2024-11-13 12:52:12,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:12,738 INFO L225 Difference]: With dead ends: 683 [2024-11-13 12:52:12,738 INFO L226 Difference]: Without dead ends: 381 [2024-11-13 12:52:12,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,740 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 9 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:12,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 276 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:12,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-13 12:52:12,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-13 12:52:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4157894736842105) internal successors, (538), 380 states have internal predecessors, (538), 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 12:52:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 538 transitions. [2024-11-13 12:52:12,762 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 538 transitions. Word has length 88 [2024-11-13 12:52:12,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:12,763 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 538 transitions. [2024-11-13 12:52:12,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 12:52:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 538 transitions. [2024-11-13 12:52:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 12:52:12,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:12,766 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2024-11-13 12:52:12,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:52:12,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:12,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1724213773, now seen corresponding path program 1 times [2024-11-13 12:52:12,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:12,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096105558] [2024-11-13 12:52:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:12,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 12:52:12,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:12,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096105558] [2024-11-13 12:52:12,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096105558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:12,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:12,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:12,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732128456] [2024-11-13 12:52:12,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:12,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:12,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:12,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:12,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,918 INFO L87 Difference]: Start difference. First operand 381 states and 538 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 12:52:12,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:12,970 INFO L93 Difference]: Finished difference Result 544 states and 773 transitions. [2024-11-13 12:52:12,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:12,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 108 [2024-11-13 12:52:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:12,973 INFO L225 Difference]: With dead ends: 544 [2024-11-13 12:52:12,974 INFO L226 Difference]: Without dead ends: 542 [2024-11-13 12:52:12,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:12,976 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 150 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:12,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 325 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-13 12:52:12,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2024-11-13 12:52:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 1.4251386321626618) internal successors, (771), 541 states have internal predecessors, (771), 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 12:52:12,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 771 transitions. [2024-11-13 12:52:12,998 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 771 transitions. Word has length 108 [2024-11-13 12:52:12,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:12,999 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 771 transitions. [2024-11-13 12:52:12,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 12:52:12,999 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 771 transitions. [2024-11-13 12:52:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 12:52:13,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:13,004 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 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] [2024-11-13 12:52:13,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:52:13,004 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:13,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash -141158698, now seen corresponding path program 1 times [2024-11-13 12:52:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:13,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816224293] [2024-11-13 12:52:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:13,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 12:52:13,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:13,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816224293] [2024-11-13 12:52:13,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816224293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:13,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:13,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:13,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288908207] [2024-11-13 12:52:13,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:13,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:13,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:13,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:13,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:13,141 INFO L87 Difference]: Start difference. First operand 542 states and 771 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 12:52:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:13,396 INFO L93 Difference]: Finished difference Result 1173 states and 1727 transitions. [2024-11-13 12:52:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:13,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 128 [2024-11-13 12:52:13,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:13,400 INFO L225 Difference]: With dead ends: 1173 [2024-11-13 12:52:13,400 INFO L226 Difference]: Without dead ends: 665 [2024-11-13 12:52:13,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:13,402 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 51 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:13,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 256 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:13,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-13 12:52:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-13 12:52:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.4593373493975903) internal successors, (969), 664 states have internal predecessors, (969), 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 12:52:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 969 transitions. [2024-11-13 12:52:13,438 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 969 transitions. Word has length 128 [2024-11-13 12:52:13,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:13,438 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 969 transitions. [2024-11-13 12:52:13,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 12:52:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 969 transitions. [2024-11-13 12:52:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 12:52:13,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:13,441 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 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] [2024-11-13 12:52:13,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:52:13,441 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:13,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1088648061, now seen corresponding path program 1 times [2024-11-13 12:52:13,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:13,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459044458] [2024-11-13 12:52:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-13 12:52:13,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:13,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459044458] [2024-11-13 12:52:13,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459044458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:13,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:13,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756573744] [2024-11-13 12:52:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:13,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:13,549 INFO L87 Difference]: Start difference. First operand 665 states and 969 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 12:52:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:13,790 INFO L93 Difference]: Finished difference Result 1536 states and 2315 transitions. [2024-11-13 12:52:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 154 [2024-11-13 12:52:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:13,795 INFO L225 Difference]: With dead ends: 1536 [2024-11-13 12:52:13,795 INFO L226 Difference]: Without dead ends: 857 [2024-11-13 12:52:13,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:13,800 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 47 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:13,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 248 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:13,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-13 12:52:13,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 854. [2024-11-13 12:52:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 1.4314185228604923) internal successors, (1221), 853 states have internal predecessors, (1221), 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 12:52:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1221 transitions. [2024-11-13 12:52:13,839 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1221 transitions. Word has length 154 [2024-11-13 12:52:13,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:13,840 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1221 transitions. [2024-11-13 12:52:13,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 12:52:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1221 transitions. [2024-11-13 12:52:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-13 12:52:13,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:13,843 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 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] [2024-11-13 12:52:13,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:52:13,843 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:13,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:13,844 INFO L85 PathProgramCache]: Analyzing trace with hash -788809138, now seen corresponding path program 1 times [2024-11-13 12:52:13,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:13,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902594875] [2024-11-13 12:52:13,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:13,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-13 12:52:13,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:13,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902594875] [2024-11-13 12:52:13,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902594875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:13,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:13,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:13,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612200957] [2024-11-13 12:52:13,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:13,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:13,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:13,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:13,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:13,995 INFO L87 Difference]: Start difference. First operand 854 states and 1221 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 12:52:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:14,236 INFO L93 Difference]: Finished difference Result 1794 states and 2591 transitions. [2024-11-13 12:52:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 175 [2024-11-13 12:52:14,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:14,242 INFO L225 Difference]: With dead ends: 1794 [2024-11-13 12:52:14,242 INFO L226 Difference]: Without dead ends: 932 [2024-11-13 12:52:14,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:14,246 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 48 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:14,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 248 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-13 12:52:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 929. [2024-11-13 12:52:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.4191810344827587) internal successors, (1317), 928 states have internal predecessors, (1317), 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 12:52:14,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1317 transitions. [2024-11-13 12:52:14,286 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1317 transitions. Word has length 175 [2024-11-13 12:52:14,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:14,286 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1317 transitions. [2024-11-13 12:52:14,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 12:52:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1317 transitions. [2024-11-13 12:52:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-13 12:52:14,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:14,291 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2024-11-13 12:52:14,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:52:14,291 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:14,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1468568133, now seen corresponding path program 1 times [2024-11-13 12:52:14,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:14,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500496571] [2024-11-13 12:52:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:14,440 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-13 12:52:14,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:14,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500496571] [2024-11-13 12:52:14,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500496571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:14,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:14,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:14,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697838073] [2024-11-13 12:52:14,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:14,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:14,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:14,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:14,443 INFO L87 Difference]: Start difference. First operand 929 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 12:52:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:14,690 INFO L93 Difference]: Finished difference Result 1947 states and 2786 transitions. [2024-11-13 12:52:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:14,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 199 [2024-11-13 12:52:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:14,695 INFO L225 Difference]: With dead ends: 1947 [2024-11-13 12:52:14,696 INFO L226 Difference]: Without dead ends: 1016 [2024-11-13 12:52:14,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:14,698 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 48 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:14,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 248 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-13 12:52:14,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1013. [2024-11-13 12:52:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.4110671936758894) internal successors, (1428), 1012 states have internal predecessors, (1428), 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 12:52:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1428 transitions. [2024-11-13 12:52:14,737 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1428 transitions. Word has length 199 [2024-11-13 12:52:14,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:14,737 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1428 transitions. [2024-11-13 12:52:14,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 12:52:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1428 transitions. [2024-11-13 12:52:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-13 12:52:14,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:14,742 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2024-11-13 12:52:14,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:52:14,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:14,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:14,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1961194307, now seen corresponding path program 1 times [2024-11-13 12:52:14,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:14,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40565643] [2024-11-13 12:52:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:14,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-13 12:52:14,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:14,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40565643] [2024-11-13 12:52:14,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40565643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:14,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:14,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:14,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810384115] [2024-11-13 12:52:14,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:14,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:14,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:14,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:14,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:14,889 INFO L87 Difference]: Start difference. First operand 1013 states and 1428 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 12:52:15,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:15,179 INFO L93 Difference]: Finished difference Result 2112 states and 3005 transitions. [2024-11-13 12:52:15,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:15,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 199 [2024-11-13 12:52:15,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:15,186 INFO L225 Difference]: With dead ends: 2112 [2024-11-13 12:52:15,186 INFO L226 Difference]: Without dead ends: 1109 [2024-11-13 12:52:15,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:15,188 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 48 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:15,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 247 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:15,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-11-13 12:52:15,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1106. [2024-11-13 12:52:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 1.411764705882353) internal successors, (1560), 1105 states have internal predecessors, (1560), 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 12:52:15,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1560 transitions. [2024-11-13 12:52:15,231 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1560 transitions. Word has length 199 [2024-11-13 12:52:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:15,231 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1560 transitions. [2024-11-13 12:52:15,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 12:52:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1560 transitions. [2024-11-13 12:52:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-13 12:52:15,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:15,236 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2024-11-13 12:52:15,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:52:15,237 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:15,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1708782589, now seen corresponding path program 1 times [2024-11-13 12:52:15,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:15,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816338005] [2024-11-13 12:52:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:15,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-13 12:52:15,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816338005] [2024-11-13 12:52:15,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816338005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:15,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:15,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:15,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001699385] [2024-11-13 12:52:15,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:15,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:15,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:15,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:15,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:15,417 INFO L87 Difference]: Start difference. First operand 1106 states and 1560 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:52:15,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:15,645 INFO L93 Difference]: Finished difference Result 2298 states and 3269 transitions. [2024-11-13 12:52:15,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:15,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 229 [2024-11-13 12:52:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:15,651 INFO L225 Difference]: With dead ends: 2298 [2024-11-13 12:52:15,651 INFO L226 Difference]: Without dead ends: 1214 [2024-11-13 12:52:15,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:15,653 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 49 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:15,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 245 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:15,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-13 12:52:15,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1211. [2024-11-13 12:52:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 1210 states have (on average 1.4181818181818182) internal successors, (1716), 1210 states have internal predecessors, (1716), 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 12:52:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1716 transitions. [2024-11-13 12:52:15,694 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1716 transitions. Word has length 229 [2024-11-13 12:52:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:15,695 INFO L471 AbstractCegarLoop]: Abstraction has 1211 states and 1716 transitions. [2024-11-13 12:52:15,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:52:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1716 transitions. [2024-11-13 12:52:15,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-13 12:52:15,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:15,700 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 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] [2024-11-13 12:52:15,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:52:15,700 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:15,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1108670963, now seen corresponding path program 1 times [2024-11-13 12:52:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:15,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400182109] [2024-11-13 12:52:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:15,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2024-11-13 12:52:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:15,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400182109] [2024-11-13 12:52:15,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400182109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:15,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:15,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397738167] [2024-11-13 12:52:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:15,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:15,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:15,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:15,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:15,898 INFO L87 Difference]: Start difference. First operand 1211 states and 1716 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 12:52:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:16,128 INFO L93 Difference]: Finished difference Result 2388 states and 3386 transitions. [2024-11-13 12:52:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:16,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 264 [2024-11-13 12:52:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:16,134 INFO L225 Difference]: With dead ends: 2388 [2024-11-13 12:52:16,134 INFO L226 Difference]: Without dead ends: 1205 [2024-11-13 12:52:16,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:16,136 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 51 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:16,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 241 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:16,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-11-13 12:52:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1202. [2024-11-13 12:52:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 1.4063280599500416) internal successors, (1689), 1201 states have internal predecessors, (1689), 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 12:52:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1689 transitions. [2024-11-13 12:52:16,173 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1689 transitions. Word has length 264 [2024-11-13 12:52:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:16,174 INFO L471 AbstractCegarLoop]: Abstraction has 1202 states and 1689 transitions. [2024-11-13 12:52:16,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 12:52:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1689 transitions. [2024-11-13 12:52:16,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-13 12:52:16,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:16,179 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:16,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:52:16,179 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:16,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:16,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2117942173, now seen corresponding path program 1 times [2024-11-13 12:52:16,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:16,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070381572] [2024-11-13 12:52:16,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:16,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-11-13 12:52:16,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:16,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070381572] [2024-11-13 12:52:16,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070381572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:16,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:16,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:16,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088280683] [2024-11-13 12:52:16,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:16,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:16,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:16,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:16,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:16,377 INFO L87 Difference]: Start difference. First operand 1202 states and 1689 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:52:16,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:16,440 INFO L93 Difference]: Finished difference Result 3528 states and 4957 transitions. [2024-11-13 12:52:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 274 [2024-11-13 12:52:16,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:16,450 INFO L225 Difference]: With dead ends: 3528 [2024-11-13 12:52:16,450 INFO L226 Difference]: Without dead ends: 2363 [2024-11-13 12:52:16,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:16,453 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 73 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:16,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 343 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2024-11-13 12:52:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2361. [2024-11-13 12:52:16,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2360 states have (on average 1.401271186440678) internal successors, (3307), 2360 states have internal predecessors, (3307), 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 12:52:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3307 transitions. [2024-11-13 12:52:16,549 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3307 transitions. Word has length 274 [2024-11-13 12:52:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:16,550 INFO L471 AbstractCegarLoop]: Abstraction has 2361 states and 3307 transitions. [2024-11-13 12:52:16,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:52:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3307 transitions. [2024-11-13 12:52:16,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-13 12:52:16,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:16,558 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:16,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:52:16,559 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:16,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash -807727346, now seen corresponding path program 1 times [2024-11-13 12:52:16,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:16,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395324732] [2024-11-13 12:52:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:16,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 315 proven. 25 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-11-13 12:52:16,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:16,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395324732] [2024-11-13 12:52:16,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395324732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:16,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055764029] [2024-11-13 12:52:16,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:16,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:16,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:16,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:16,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:52:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:17,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:52:17,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-13 12:52:17,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055764029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:17,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:17,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 12:52:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062232530] [2024-11-13 12:52:17,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:17,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:17,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:17,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:17,131 INFO L87 Difference]: Start difference. First operand 2361 states and 3307 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 12:52:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:17,371 INFO L93 Difference]: Finished difference Result 4662 states and 6535 transitions. [2024-11-13 12:52:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 274 [2024-11-13 12:52:17,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:17,380 INFO L225 Difference]: With dead ends: 4662 [2024-11-13 12:52:17,381 INFO L226 Difference]: Without dead ends: 2367 [2024-11-13 12:52:17,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:17,384 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 36 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:17,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 273 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-11-13 12:52:17,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2361. [2024-11-13 12:52:17,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2360 states have (on average 1.3783898305084745) internal successors, (3253), 2360 states have internal predecessors, (3253), 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 12:52:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3253 transitions. [2024-11-13 12:52:17,460 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3253 transitions. Word has length 274 [2024-11-13 12:52:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:17,460 INFO L471 AbstractCegarLoop]: Abstraction has 2361 states and 3253 transitions. [2024-11-13 12:52:17,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 12:52:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3253 transitions. [2024-11-13 12:52:17,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-13 12:52:17,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:17,468 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:17,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:52:17,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 12:52:17,669 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:17,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:17,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1993393609, now seen corresponding path program 1 times [2024-11-13 12:52:17,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:17,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198420452] [2024-11-13 12:52:17,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:17,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 382 proven. 25 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2024-11-13 12:52:17,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:17,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198420452] [2024-11-13 12:52:17,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198420452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:17,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195380719] [2024-11-13 12:52:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:17,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:17,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:17,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:17,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:52:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:18,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:52:18,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-13 12:52:18,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:18,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195380719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:18,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:18,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 12:52:18,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904159181] [2024-11-13 12:52:18,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:18,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:18,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:18,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:18,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:18,220 INFO L87 Difference]: Start difference. First operand 2361 states and 3253 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 12:52:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:18,496 INFO L93 Difference]: Finished difference Result 4905 states and 6712 transitions. [2024-11-13 12:52:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:18,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 301 [2024-11-13 12:52:18,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:18,507 INFO L225 Difference]: With dead ends: 4905 [2024-11-13 12:52:18,507 INFO L226 Difference]: Without dead ends: 2610 [2024-11-13 12:52:18,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:18,510 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 61 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:18,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 229 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2024-11-13 12:52:18,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2448. [2024-11-13 12:52:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.3771965672251736) internal successors, (3370), 2447 states have internal predecessors, (3370), 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 12:52:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3370 transitions. [2024-11-13 12:52:18,588 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3370 transitions. Word has length 301 [2024-11-13 12:52:18,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:18,588 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 3370 transitions. [2024-11-13 12:52:18,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 12:52:18,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3370 transitions. [2024-11-13 12:52:18,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-13 12:52:18,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:18,596 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:52:18,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:52:18,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 12:52:18,796 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:18,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash 698433539, now seen corresponding path program 1 times [2024-11-13 12:52:18,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862505734] [2024-11-13 12:52:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-13 12:52:18,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:18,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862505734] [2024-11-13 12:52:18,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862505734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:18,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:52:18,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:52:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362897048] [2024-11-13 12:52:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:18,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:18,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:18,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:18,978 INFO L87 Difference]: Start difference. First operand 2448 states and 3370 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 12:52:19,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:19,236 INFO L93 Difference]: Finished difference Result 4992 states and 6817 transitions. [2024-11-13 12:52:19,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:19,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 302 [2024-11-13 12:52:19,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:19,247 INFO L225 Difference]: With dead ends: 4992 [2024-11-13 12:52:19,247 INFO L226 Difference]: Without dead ends: 2358 [2024-11-13 12:52:19,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:52:19,251 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 39 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:19,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 278 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:52:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-13 12:52:19,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2349. [2024-11-13 12:52:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2348 states have (on average 1.372657580919932) internal successors, (3223), 2348 states have internal predecessors, (3223), 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 12:52:19,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3223 transitions. [2024-11-13 12:52:19,352 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3223 transitions. Word has length 302 [2024-11-13 12:52:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:19,353 INFO L471 AbstractCegarLoop]: Abstraction has 2349 states and 3223 transitions. [2024-11-13 12:52:19,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 12:52:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3223 transitions. [2024-11-13 12:52:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-13 12:52:19,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:19,361 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-13 12:52:19,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 12:52:19,361 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:19,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1873870810, now seen corresponding path program 1 times [2024-11-13 12:52:19,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:19,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713825140] [2024-11-13 12:52:19,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:19,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 354 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-13 12:52:19,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713825140] [2024-11-13 12:52:19,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713825140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647154076] [2024-11-13 12:52:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:19,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:19,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:19,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:19,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:52:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:19,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:52:19,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2024-11-13 12:52:20,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:52:20,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647154076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:52:20,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:52:20,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 12:52:20,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466945042] [2024-11-13 12:52:20,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:52:20,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:52:20,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:52:20,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:20,363 INFO L87 Difference]: Start difference. First operand 2349 states and 3223 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 12:52:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:20,419 INFO L93 Difference]: Finished difference Result 3510 states and 4807 transitions. [2024-11-13 12:52:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:52:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 312 [2024-11-13 12:52:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:20,429 INFO L225 Difference]: With dead ends: 3510 [2024-11-13 12:52:20,429 INFO L226 Difference]: Without dead ends: 2351 [2024-11-13 12:52:20,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:20,432 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 58 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:20,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 481 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:52:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2024-11-13 12:52:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2343. [2024-11-13 12:52:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 1.3684884713919727) internal successors, (3205), 2342 states have internal predecessors, (3205), 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 12:52:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3205 transitions. [2024-11-13 12:52:20,511 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3205 transitions. Word has length 312 [2024-11-13 12:52:20,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:20,512 INFO L471 AbstractCegarLoop]: Abstraction has 2343 states and 3205 transitions. [2024-11-13 12:52:20,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 12:52:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3205 transitions. [2024-11-13 12:52:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-13 12:52:20,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:20,519 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-13 12:52:20,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:52:20,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:20,720 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:20,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1266998473, now seen corresponding path program 1 times [2024-11-13 12:52:20,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:20,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44609661] [2024-11-13 12:52:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:20,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-13 12:52:20,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:20,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44609661] [2024-11-13 12:52:20,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44609661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:20,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558324775] [2024-11-13 12:52:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:20,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:20,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:20,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:20,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:52:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:21,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:52:21,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-13 12:52:21,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:52:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-13 12:52:21,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558324775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:52:21,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:52:21,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 12:52:21,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922661827] [2024-11-13 12:52:21,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:52:21,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:52:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:21,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:52:21,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:52:21,535 INFO L87 Difference]: Start difference. First operand 2343 states and 3205 transitions. Second operand has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 11 states have internal predecessors, (229), 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 12:52:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:22,387 INFO L93 Difference]: Finished difference Result 3615 states and 4996 transitions. [2024-11-13 12:52:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:52:22,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 11 states have internal predecessors, (229), 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 312 [2024-11-13 12:52:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:22,397 INFO L225 Difference]: With dead ends: 3615 [2024-11-13 12:52:22,397 INFO L226 Difference]: Without dead ends: 2357 [2024-11-13 12:52:22,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-13 12:52:22,401 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 380 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:22,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1475 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 12:52:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-13 12:52:22,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2343. [2024-11-13 12:52:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 1.365926558497011) internal successors, (3199), 2342 states have internal predecessors, (3199), 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 12:52:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3199 transitions. [2024-11-13 12:52:22,478 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3199 transitions. Word has length 312 [2024-11-13 12:52:22,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:22,478 INFO L471 AbstractCegarLoop]: Abstraction has 2343 states and 3199 transitions. [2024-11-13 12:52:22,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 11 states have internal predecessors, (229), 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 12:52:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3199 transitions. [2024-11-13 12:52:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-13 12:52:22,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:22,496 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-13 12:52:22,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 12:52:22,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 12:52:22,698 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:22,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash -826519920, now seen corresponding path program 1 times [2024-11-13 12:52:22,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:22,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869799739] [2024-11-13 12:52:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:22,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 474 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-13 12:52:22,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:22,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869799739] [2024-11-13 12:52:22,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869799739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:22,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922833087] [2024-11-13 12:52:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:22,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:22,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:22,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:22,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:52:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:23,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:52:23,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-13 12:52:23,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:52:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2024-11-13 12:52:23,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922833087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:52:23,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:52:23,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2024-11-13 12:52:23,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105330133] [2024-11-13 12:52:23,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:52:23,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 12:52:23,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 12:52:23,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 12:52:23,380 INFO L87 Difference]: Start difference. First operand 2343 states and 3199 transitions. Second operand has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 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 12:52:24,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:24,165 INFO L93 Difference]: Finished difference Result 3154 states and 4345 transitions. [2024-11-13 12:52:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:52:24,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 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 313 [2024-11-13 12:52:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:24,174 INFO L225 Difference]: With dead ends: 3154 [2024-11-13 12:52:24,174 INFO L226 Difference]: Without dead ends: 1175 [2024-11-13 12:52:24,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:52:24,178 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 330 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:24,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 904 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 12:52:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2024-11-13 12:52:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1166. [2024-11-13 12:52:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1165 states have (on average 1.3639484978540772) internal successors, (1589), 1165 states have internal predecessors, (1589), 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 12:52:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1589 transitions. [2024-11-13 12:52:24,230 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1589 transitions. Word has length 313 [2024-11-13 12:52:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:24,230 INFO L471 AbstractCegarLoop]: Abstraction has 1166 states and 1589 transitions. [2024-11-13 12:52:24,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 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 12:52:24,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1589 transitions. [2024-11-13 12:52:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-13 12:52:24,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:24,238 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-13 12:52:24,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 12:52:24,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 12:52:24,439 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:24,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1097768835, now seen corresponding path program 1 times [2024-11-13 12:52:24,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:24,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672066283] [2024-11-13 12:52:24,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:24,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 476 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-13 12:52:24,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:24,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672066283] [2024-11-13 12:52:24,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672066283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:24,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844110871] [2024-11-13 12:52:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:24,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:24,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:24,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:24,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:52:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:24,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:52:24,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 476 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-13 12:52:24,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:52:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 476 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-13 12:52:25,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844110871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:52:25,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:52:25,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-13 12:52:25,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268755218] [2024-11-13 12:52:25,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:52:25,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:25,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:25,124 INFO L87 Difference]: Start difference. First operand 1166 states and 1589 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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 12:52:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:25,715 INFO L93 Difference]: Finished difference Result 2997 states and 4146 transitions. [2024-11-13 12:52:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:52:25,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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 316 [2024-11-13 12:52:25,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:25,732 INFO L225 Difference]: With dead ends: 2997 [2024-11-13 12:52:25,732 INFO L226 Difference]: Without dead ends: 1784 [2024-11-13 12:52:25,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:52:25,737 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 317 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:25,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 628 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 12:52:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-11-13 12:52:25,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1325. [2024-11-13 12:52:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.3768882175226587) internal successors, (1823), 1324 states have internal predecessors, (1823), 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 12:52:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1823 transitions. [2024-11-13 12:52:25,807 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1823 transitions. Word has length 316 [2024-11-13 12:52:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:25,812 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1823 transitions. [2024-11-13 12:52:25,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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 12:52:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1823 transitions. [2024-11-13 12:52:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-13 12:52:25,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:52:25,820 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 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] [2024-11-13 12:52:25,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 12:52:26,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 12:52:26,025 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:52:26,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:52:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash 371367722, now seen corresponding path program 1 times [2024-11-13 12:52:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:52:26,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699945818] [2024-11-13 12:52:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:26,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:52:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 653 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-13 12:52:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:52:26,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699945818] [2024-11-13 12:52:26,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699945818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:52:26,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438761426] [2024-11-13 12:52:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:52:26,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:52:26,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:52:26,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:52:26,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 12:52:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:52:26,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:52:26,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:52:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 653 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-13 12:52:26,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:52:26,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 653 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-13 12:52:26,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438761426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:52:26,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:52:26,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-13 12:52:26,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080425104] [2024-11-13 12:52:26,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:52:26,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:52:26,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:52:26,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:52:26,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:52:26,769 INFO L87 Difference]: Start difference. First operand 1325 states and 1823 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 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 12:52:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:52:27,065 INFO L93 Difference]: Finished difference Result 1900 states and 2582 transitions. [2024-11-13 12:52:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:52:27,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 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 342 [2024-11-13 12:52:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:52:27,066 INFO L225 Difference]: With dead ends: 1900 [2024-11-13 12:52:27,066 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 12:52:27,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:52:27,069 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 128 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:52:27,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 367 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 12:52:27,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 12:52:27,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 12:52:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:52:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 12:52:27,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 342 [2024-11-13 12:52:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:52:27,071 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 12:52:27,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 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 12:52:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 12:52:27,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 12:52:27,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:52:27,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 12:52:27,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 12:52:27,279 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-13 12:52:27,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 12:52:28,594 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:52:28,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:52:28 BoogieIcfgContainer [2024-11-13 12:52:28,621 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:52:28,622 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:52:28,622 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:52:28,622 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:52:28,623 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:52:09" (3/4) ... [2024-11-13 12:52:28,625 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 12:52:28,654 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-13 12:52:28,655 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 12:52:28,656 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 12:52:28,657 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 12:52:28,824 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:52:28,825 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 12:52:28,825 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:52:28,826 INFO L158 Benchmark]: Toolchain (without parser) took 20516.72ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 93.3MB in the beginning and 149.1MB in the end (delta: -55.8MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2024-11-13 12:52:28,826 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:52:28,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.93ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 78.0MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 12:52:28,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.91ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:52:28,832 INFO L158 Benchmark]: Boogie Preprocessor took 99.15ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:52:28,832 INFO L158 Benchmark]: RCFGBuilder took 1032.50ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 89.7MB in the end (delta: -16.9MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-11-13 12:52:28,832 INFO L158 Benchmark]: TraceAbstraction took 18636.26ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 89.1MB in the beginning and 157.3MB in the end (delta: -68.2MB). Peak memory consumption was 131.9MB. Max. memory is 16.1GB. [2024-11-13 12:52:28,833 INFO L158 Benchmark]: Witness Printer took 203.45ms. Allocated memory is still 226.5MB. Free memory was 157.3MB in the beginning and 149.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:52:28,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.93ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 78.0MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.91ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 99.15ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1032.50ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 89.7MB in the end (delta: -16.9MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * TraceAbstraction took 18636.26ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 89.1MB in the beginning and 157.3MB in the end (delta: -68.2MB). Peak memory consumption was 131.9MB. Max. memory is 16.1GB. * Witness Printer took 203.45ms. Allocated memory is still 226.5MB. Free memory was 157.3MB in the beginning and 149.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 624]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 24, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2115 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2115 mSDsluCounter, 9261 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4535 mSDsCounter, 383 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3896 IncrementalHoareTripleChecker+Invalid, 4279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 383 mSolverCounterUnsat, 4726 mSDtfsCounter, 3896 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3544 GetRequests, 3478 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2448occurred in iteration=18, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 687 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 6785 NumberOfCodeBlocks, 6785 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 8033 ConstructedInterpolants, 0 QuantifiedInterpolants, 11293 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3959 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 35 InterpolantComputations, 20 PerfectInterpolantSequences, 24679/24942 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((((((((ag_Y <= 208) && (s__hit != 0)) && (4416 == s__state)) && (blastFlag <= 4)) || (((s__hit == 0) && (2 == blastFlag)) && (48 == ag_Z))) || ((((s__hit == 0) && (48 == ag_Z)) && (4416 == s__state)) && (blastFlag <= 4))) || ((((4368 == s__state) && (ag_Y <= 208)) && (s__hit != 0)) && (blastFlag == 0))) || ((((s__hit == 0) && (48 == ag_Z)) && (12292 == s__state)) && (blastFlag == 0))) || (((((4352 == s__state) && (3 == s__s3__tmp__next_state___0)) && (ag_Y <= 208)) && (s__hit != 0)) && (blastFlag <= 4))) || ((((ag_Y <= 208) && (4384 == s__state)) && (blastFlag == 1)) && (s__hit != 0))) || ((((s__hit == 0) && (4384 == s__state)) && (blastFlag == 1)) && (48 == ag_Z))) || (((((s__hit == 0) && (48 == ag_Z)) && (4560 == s__s3__tmp__next_state___0)) && (4560 == s__state)) && (blastFlag <= 4))) || ((((ag_Y <= 208) && (s__hit != 0)) && (12292 == s__state)) && (blastFlag == 0))) || (((ag_Y <= 208) && (2 == blastFlag)) && (s__hit != 0))) || ((((s__hit == 0) && (4368 == s__state)) && (48 == ag_Z)) && (blastFlag == 0))) || (((((4432 <= s__state) && (s__hit == 0)) && (48 == ag_Z)) && (s__state <= 4528)) && (blastFlag <= 4))) || (((((4352 == s__state) && (s__hit == 0)) && (48 == ag_Z)) && (4560 == s__s3__tmp__next_state___0)) && (blastFlag <= 4))) || (3 == s__state)) || (((((4432 <= s__state) && (ag_Y <= 208)) && (s__hit != 0)) && (s__state <= 4528)) && (blastFlag <= 4))) || (((s__hit == 0) && (48 == ag_Z)) && (48 == s__state))) RESULT: Ultimate proved your program to be correct! [2024-11-13 12:52:28,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a609331f-3c21-45c6-a9f8-ef8a25dd81a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE